camera/docs/metadata_properties.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at

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     distributed under the License is distributed on an "AS IS" BASIS,
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     See the License for the specific language governing permissions and
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<metadata xmlns="http://schemas.android.com/service/camera/metadata/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://schemas.android.com/service/camera/metadata/ metadata_properties.xsd">

  <tags>
    <tag id="BC">
        Needed for backwards compatibility with old Java API
    </tag>
    <tag id="V1">
        New features for first camera 2 release (API1)
    </tag>
    <tag id="RAW">
        Needed for useful RAW image processing and DNG file support
    </tag>
    <tag id="HAL2">
        Entry is only used by camera device HAL 2.x
    </tag>
    <tag id="FULL">
        Entry is required for full hardware level devices, and optional for other hardware levels
    </tag>
    <tag id="FUTURE">
        Entry is  under-specified and is not required for now. This is for book-keeping purpose,
        do not implement or use it, it may be revised for future.
    </tag>
  </tags>

  <types>
    <typedef name="pairFloatFloat">
      <language name="java">android.util.Pair&lt;Float,Float&gt;</language>
    </typedef>
    <typedef name="pairDoubleDouble">
      <language name="java">android.util.Pair&lt;Double,Double&gt;</language>
    </typedef>
    <typedef name="rectangle">
      <language name="java">android.graphics.Rect</language>
    </typedef>
    <typedef name="size">
      <language name="java">android.util.Size</language>
    </typedef>
    <typedef name="string">
      <language name="java">String</language>
    </typedef>
    <typedef name="boolean">
      <language name="java">boolean</language>
    </typedef>
    <typedef name="imageFormat">
      <language name="java">int</language>
    </typedef>
    <typedef name="streamConfigurationMap">
      <language name="java">android.hardware.camera2.params.StreamConfigurationMap</language>
    </typedef>
    <typedef name="streamConfiguration">
      <language name="java">android.hardware.camera2.params.StreamConfiguration</language>
    </typedef>
    <typedef name="streamConfigurationDuration">
      <language name="java">android.hardware.camera2.params.StreamConfigurationDuration</language>
    </typedef>
    <typedef name="face">
      <language name="java">android.hardware.camera2.params.Face</language>
    </typedef>
    <typedef name="meteringRectangle">
      <language name="java">android.hardware.camera2.params.MeteringRectangle</language>
    </typedef>
    <typedef name="rangeFloat">
      <language name="java">android.util.Range&lt;Float&gt;</language>
    </typedef>
    <typedef name="rangeInt">
      <language name="java">android.util.Range&lt;Integer&gt;</language>
    </typedef>
    <typedef name="rangeLong">
      <language name="java">android.util.Range&lt;Long&gt;</language>
    </typedef>
    <typedef name="colorSpaceTransform">
      <language name="java">android.hardware.camera2.params.ColorSpaceTransform</language>
    </typedef>
    <typedef name="rggbChannelVector">
      <language name="java">android.hardware.camera2.params.RggbChannelVector</language>
    </typedef>
    <typedef name="blackLevelPattern">
      <language name="java">android.hardware.camera2.params.BlackLevelPattern</language>
    </typedef>
    <typedef name="enumList">
      <language name="java">int</language>
    </typedef>
    <typedef name="sizeF">
      <language name="java">android.util.SizeF</language>
    </typedef>
    <typedef name="point">
      <language name="java">android.graphics.Point</language>
    </typedef>
    <typedef name="tonemapCurve">
      <language name="java">android.hardware.camera2.params.TonemapCurve</language>
    </typedef>
    <typedef name="lensShadingMap">
      <language name="java">android.hardware.camera2.params.LensShadingMap</language>
    </typedef>
    <typedef name="location">
      <language name="java">android.location.Location</language>
    </typedef>
    <typedef name="highSpeedVideoConfiguration">
      <language name="java">android.hardware.camera2.params.HighSpeedVideoConfiguration</language>
    </typedef>
  </types>

  <namespace name="android">
    <section name="colorCorrection">
      <controls>
        <entry name="mode" type="byte" visibility="public" enum="true" hwlevel="full">
          <enum>
            <value>TRANSFORM_MATRIX
              <notes>Use the android.colorCorrection.transform matrix
                and android.colorCorrection.gains to do color conversion.

                All advanced white balance adjustments (not specified
                by our white balance pipeline) must be disabled.

                If AWB is enabled with `android.control.awbMode != OFF`, then
                TRANSFORM_MATRIX is ignored. The camera device will override
                this value to either FAST or HIGH_QUALITY.
              </notes>
            </value>
            <value>FAST
              <notes>Color correction processing must not slow down
              capture rate relative to sensor raw output.

              Advanced white balance adjustments above and beyond
              the specified white balance pipeline may be applied.

              If AWB is enabled with `android.control.awbMode != OFF`, then
              the camera device uses the last frame's AWB values
              (or defaults if AWB has never been run).
            </notes>
            </value>
            <value>HIGH_QUALITY
              <notes>Color correction processing operates at improved
              quality but reduced capture rate (relative to sensor raw
              output).

              Advanced white balance adjustments above and beyond
              the specified white balance pipeline may be applied.

              If AWB is enabled with `android.control.awbMode != OFF`, then
              the camera device uses the last frame's AWB values
              (or defaults if AWB has never been run).
            </notes>
            </value>
          </enum>

          <description>
          The mode control selects how the image data is converted from the
          sensor's native color into linear sRGB color.
          </description>
          <details>
          When auto-white balance (AWB) is enabled with android.control.awbMode, this
          control is overridden by the AWB routine. When AWB is disabled, the
          application controls how the color mapping is performed.

          We define the expected processing pipeline below. For consistency
          across devices, this is always the case with TRANSFORM_MATRIX.

          When either FULL or HIGH_QUALITY is used, the camera device may
          do additional processing but android.colorCorrection.gains and
          android.colorCorrection.transform will still be provided by the
          camera device (in the results) and be roughly correct.

          Switching to TRANSFORM_MATRIX and using the data provided from
          FAST or HIGH_QUALITY will yield a picture with the same white point
          as what was produced by the camera device in the earlier frame.

          The expected processing pipeline is as follows:

          ![White balance processing pipeline](android.colorCorrection.mode/processing_pipeline.png)

          The white balance is encoded by two values, a 4-channel white-balance
          gain vector (applied in the Bayer domain), and a 3x3 color transform
          matrix (applied after demosaic).

          The 4-channel white-balance gains are defined as:

              android.colorCorrection.gains = [ R G_even G_odd B ]

          where `G_even` is the gain for green pixels on even rows of the
          output, and `G_odd` is the gain for green pixels on the odd rows.
          These may be identical for a given camera device implementation; if
          the camera device does not support a separate gain for even/odd green
          channels, it will use the `G_even` value, and write `G_odd` equal to
          `G_even` in the output result metadata.

          The matrices for color transforms are defined as a 9-entry vector:

              android.colorCorrection.transform = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]

          which define a transform from input sensor colors, `P_in = [ r g b ]`,
          to output linear sRGB, `P_out = [ r' g' b' ]`,

          with colors as follows:

              r' = I0r + I1g + I2b
              g' = I3r + I4g + I5b
              b' = I6r + I7g + I8b

          Both the input and output value ranges must match. Overflow/underflow
          values are clipped to fit within the range.
          </details>
        </entry>
        <entry name="transform" type="rational" visibility="public"
               type_notes="3x3 rational matrix in row-major order"
               container="array" typedef="colorSpaceTransform" hwlevel="full">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>A color transform matrix to use to transform
          from sensor RGB color space to output linear sRGB color space.
          </description>
          <units>Unitless scale factors</units>
          <details>This matrix is either set by the camera device when the request
          android.colorCorrection.mode is not TRANSFORM_MATRIX, or
          directly by the application in the request when the
          android.colorCorrection.mode is TRANSFORM_MATRIX.

          In the latter case, the camera device may round the matrix to account
          for precision issues; the final rounded matrix should be reported back
          in this matrix result metadata. The transform should keep the magnitude
          of the output color values within `[0, 1.0]` (assuming input color
          values is within the normalized range `[0, 1.0]`), or clipping may occur.
          </details>
        </entry>
        <entry name="gains" type="float" visibility="public"
               type_notes="A 1D array of floats for 4 color channel gains"
               container="array" typedef="rggbChannelVector" hwlevel="full">
          <array>
            <size>4</size>
          </array>
          <description>Gains applying to Bayer raw color channels for
          white-balance.</description>
          <units>Unitless gain factors</units>
          <details>
          These per-channel gains are either set by the camera device
          when the request android.colorCorrection.mode is not
          TRANSFORM_MATRIX, or directly by the application in the
          request when the android.colorCorrection.mode is
          TRANSFORM_MATRIX.

          The gains in the result metadata are the gains actually
          applied by the camera device to the current frame.
          </details>
          <hal_details>
          The 4-channel white-balance gains are defined in
          the order of `[R G_even G_odd B]`, where `G_even` is the gain
          for green pixels on even rows of the output, and `G_odd`
          is the gain for green pixels on the odd rows.

          If a HAL does not support a separate gain for even/odd green
          channels, it must use the `G_even` value, and write
          `G_odd` equal to `G_even` in the output result metadata.
          </hal_details>
        </entry>
        <entry name="aberrationMode" type="byte" visibility="public" enum="true" hwlevel="legacy">
          <enum>
            <value>OFF
              <notes>
                No aberration correction is applied.
              </notes>
            </value>
            <value>FAST
              <notes>
                Aberration correction will not slow down capture rate
                relative to sensor raw output.
            </notes>
            </value>
            <value>HIGH_QUALITY
              <notes>
                Aberration correction operates at improved quality but reduced
                capture rate (relative to sensor raw output).
            </notes>
            </value>
          </enum>
          <description>
            Mode of operation for the chromatic aberration correction algorithm.
          </description>
          <range>android.colorCorrection.availableAberrationModes</range>
          <details>
            Chromatic (color) aberration is caused by the fact that different wavelengths of light
            can not focus on the same point after exiting from the lens. This metadata defines
            the high level control of chromatic aberration correction algorithm, which aims to
            minimize the chromatic artifacts that may occur along the object boundaries in an
            image.

            FAST/HIGH_QUALITY both mean that camera device determined aberration
            correction will be applied. HIGH_QUALITY mode indicates that the camera device will
            use the highest-quality aberration correction algorithms, even if it slows down
            capture rate. FAST means the camera device will not slow down capture rate when
            applying aberration correction.

            LEGACY devices will always be in FAST mode.
          </details>
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.colorCorrection.mode" kind="controls">
        </clone>
        <clone entry="android.colorCorrection.transform" kind="controls">
        </clone>
        <clone entry="android.colorCorrection.gains" kind="controls">
        </clone>
        <clone entry="android.colorCorrection.aberrationMode" kind="controls">
        </clone>
      </dynamic>
      <static>
        <entry name="availableAberrationModes" type="byte" visibility="public"
        type_notes="list of enums" container="array" typedef="enumList" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
            List of aberration correction modes for android.colorCorrection.aberrationMode that are
            supported by this camera device.
          </description>
          <range>Any value listed in android.colorCorrection.aberrationMode</range>
          <details>
            This key lists the valid modes for android.colorCorrection.aberrationMode.  If no
            aberration correction modes are available for a device, this list will solely include
            OFF mode.

            For FULL capability device (android.info.supportedHardwareLevel `==` FULL), OFF is
            always included.

            LEGACY devices will always only support FAST mode.
          </details>
          <tag id="V1" />
        </entry>
      </static>
    </section>
    <section name="control">
      <controls>
        <entry name="aeAntibandingMode" type="byte" visibility="public"
               enum="true" hwlevel="legacy">
          <enum>
            <value>OFF
              <notes>
                The camera device will not adjust exposure duration to
                avoid banding problems.
              </notes>
            </value>
            <value>50HZ
              <notes>
                The camera device will adjust exposure duration to
                avoid banding problems with 50Hz illumination sources.
              </notes>
            </value>
            <value>60HZ
              <notes>
                The camera device will adjust exposure duration to
                avoid banding problems with 60Hz illumination
                sources.
              </notes>
            </value>
            <value>AUTO
              <notes>
                The camera device will automatically adapt its
                antibanding routine to the current illumination
                conditions. This is the default.
              </notes>
            </value>
          </enum>
          <description>
            The desired setting for the camera device's auto-exposure
            algorithm's antibanding compensation.
          </description>
          <range>
            android.control.aeAvailableAntibandingModes
          </range>
          <details>
            Some kinds of lighting fixtures, such as some fluorescent
            lights, flicker at the rate of the power supply frequency
            (60Hz or 50Hz, depending on country). While this is
            typically not noticeable to a person, it can be visible to
            a camera device. If a camera sets its exposure time to the
            wrong value, the flicker may become visible in the
            viewfinder as flicker or in a final captured image, as a
            set of variable-brightness bands across the image.

            Therefore, the auto-exposure routines of camera devices
            include antibanding routines that ensure that the chosen
            exposure value will not cause such banding. The choice of
            exposure time depends on the rate of flicker, which the
            camera device can detect automatically, or the expected
            rate can be selected by the application using this
            control.

            A given camera device may not support all of the possible
            options for the antibanding mode. The
            android.control.aeAvailableAntibandingModes key contains
            the available modes for a given camera device.

            The default mode is AUTO, which is supported by all
            camera devices.

            If manual exposure control is enabled (by setting
            android.control.aeMode or android.control.mode to OFF),
            then this setting has no effect, and the application must
            ensure it selects exposure times that do not cause banding
            issues. The android.statistics.sceneFlicker key can assist
            the application in this.
          </details>
          <hal_details>
            For all capture request templates, this field must be set
            to AUTO.  AUTO is the only mode that must supported;
            OFF, 50HZ, 60HZ are all optional.

            If manual exposure control is enabled (by setting
            android.control.aeMode or android.control.mode to OFF),
            then the exposure values provided by the application must not be
            adjusted for antibanding.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="aeExposureCompensation" type="int32" visibility="public" hwlevel="legacy">
          <description>Adjustment to auto-exposure (AE) target image
          brightness.</description>
          <units>Compensation steps</units>
          <range>android.control.aeCompensationRange</range>
          <details>
          The adjustment is measured as a count of steps, with the
          step size defined by android.control.aeCompensationStep and the
          allowed range by android.control.aeCompensationRange.

          For example, if the exposure value (EV) step is 0.333, '6'
          will mean an exposure compensation of +2 EV; -3 will mean an
          exposure compensation of -1 EV. One EV represents a doubling
          of image brightness. Note that this control will only be
          effective if android.control.aeMode `!=` OFF. This control
          will take effect even when android.control.aeLock `== true`.

          In the event of exposure compensation value being changed, camera device
          may take several frames to reach the newly requested exposure target.
          During that time, android.control.aeState field will be in the SEARCHING
          state. Once the new exposure target is reached, android.control.aeState will
          change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
          FLASH_REQUIRED (if the scene is too dark for still capture).
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeLock" type="byte" visibility="public" enum="true"
               typedef="boolean" hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>Auto-exposure lock is disabled; the AE algorithm
            is free to update its parameters.</notes></value>
            <value>ON
            <notes>Auto-exposure lock is enabled; the AE algorithm
            must not update the exposure and sensitivity parameters
            while the lock is active.

            android.control.aeExposureCompensation setting changes
            will still take effect while auto-exposure is locked.

            Some rare LEGACY devices may not support
            this, in which case the value will always be overridden to OFF.
            </notes></value>
          </enum>
          <description>Whether auto-exposure (AE) is currently locked to its latest
          calculated values.</description>
          <details>
          When set to `true` (ON), the AE algorithm is locked to its latest parameters,
          and will not change exposure settings until the lock is set to `false` (OFF).

          Note that even when AE is locked, the flash may be fired if
          the android.control.aeMode is ON_AUTO_FLASH /
          ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.

          When android.control.aeExposureCompensation is changed, even if the AE lock
          is ON, the camera device will still adjust its exposure value.

          If AE precapture is triggered (see android.control.aePrecaptureTrigger)
          when AE is already locked, the camera device will not change the exposure time
          (android.sensor.exposureTime) and sensitivity (android.sensor.sensitivity)
          parameters. The flash may be fired if the android.control.aeMode
          is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
          android.control.aeMode is ON_ALWAYS_FLASH, the scene may become overexposed.

          Since the camera device has a pipeline of in-flight requests, the settings that
          get locked do not necessarily correspond to the settings that were present in the
          latest capture result received from the camera device, since additional captures
          and AE updates may have occurred even before the result was sent out. If an
          application is switching between automatic and manual control and wishes to eliminate
          any flicker during the switch, the following procedure is recommended:

            1. Starting in auto-AE mode:
            2. Lock AE
            3. Wait for the first result to be output that has the AE locked
            4. Copy exposure settings from that result into a request, set the request to manual AE
            5. Submit the capture request, proceed to run manual AE as desired.

          See android.control.aeState for AE lock related state transition details.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeMode" type="byte" visibility="public" enum="true" hwlevel="legacy">
          <enum>
            <value>OFF
              <notes>
                The camera device's autoexposure routine is disabled.

                The application-selected android.sensor.exposureTime,
                android.sensor.sensitivity and
                android.sensor.frameDuration are used by the camera
                device, along with android.flash.* fields, if there's
                a flash unit for this camera device.

                LEGACY devices do not support the OFF mode and will
                override attempts to use this value to ON.
              </notes>
            </value>
            <value>ON
              <notes>
                The camera device's autoexposure routine is active,
                with no flash control.

                The application's values for
                android.sensor.exposureTime,
                android.sensor.sensitivity, and
                android.sensor.frameDuration are ignored. The
                application has control over the various
                android.flash.* fields.
              </notes>
            </value>
            <value>ON_AUTO_FLASH
              <notes>
                Like ON, except that the camera device also controls
                the camera's flash unit, firing it in low-light
                conditions.

                The flash may be fired during a precapture sequence
                (triggered by android.control.aePrecaptureTrigger) and
                may be fired for captures for which the
                android.control.captureIntent field is set to
                STILL_CAPTURE
              </notes>
            </value>
            <value>ON_ALWAYS_FLASH
              <notes>
                Like ON, except that the camera device also controls
                the camera's flash unit, always firing it for still
                captures.

                The flash may be fired during a precapture sequence
                (triggered by android.control.aePrecaptureTrigger) and
                will always be fired for captures for which the
                android.control.captureIntent field is set to
                STILL_CAPTURE
              </notes>
            </value>
            <value>ON_AUTO_FLASH_REDEYE
              <notes>
                Like ON_AUTO_FLASH, but with automatic red eye
                reduction.

                If deemed necessary by the camera device, a red eye
                reduction flash will fire during the precapture
                sequence.
              </notes>
            </value>
          </enum>
          <description>The desired mode for the camera device's
          auto-exposure routine.</description>
          <range>android.control.aeAvailableModes</range>
          <details>
            This control is only effective if android.control.mode is
            AUTO.

            When set to any of the ON modes, the camera device's
            auto-exposure routine is enabled, overriding the
            application's selected exposure time, sensor sensitivity,
            and frame duration (android.sensor.exposureTime,
            android.sensor.sensitivity, and
            android.sensor.frameDuration). If one of the FLASH modes
            is selected, the camera device's flash unit controls are
            also overridden.

            The FLASH modes are only available if the camera device
            has a flash unit (android.flash.info.available is `true`).

            If flash TORCH mode is desired, this field must be set to
            ON or OFF, and android.flash.mode set to TORCH.

            When set to any of the ON modes, the values chosen by the
            camera device auto-exposure routine for the overridden
            fields for a given capture will be available in its
            CaptureResult.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeRegions" type="int32" visibility="public"
            optional="true" container="array" typedef="meteringRectangle">
          <array>
            <size>5</size>
            <size>area_count</size>
          </array>
          <description>List of metering areas to use for auto-exposure adjustment.</description>
          <units>Pixel coordinates within android.sensor.info.activeArraySize</units>
          <range>Coordinates must be between `[(0,0), (width, height))` of
          android.sensor.info.activeArraySize</range>
          <details>
              Not available if android.control.maxRegionsAe is 0.
              Otherwise will always be present.

              The maximum number of regions supported by the device is determined by the value
              of android.control.maxRegionsAe.

              The coordinate system is based on the active pixel array,
              with (0,0) being the top-left pixel in the active pixel array, and
              (android.sensor.info.activeArraySize.width - 1,
              android.sensor.info.activeArraySize.height - 1) being the
              bottom-right pixel in the active pixel array.

              The weight must be within `[0, 1000]`, and represents a weight
              for every pixel in the area. This means that a large metering area
              with the same weight as a smaller area will have more effect in
              the metering result. Metering areas can partially overlap and the
              camera device will add the weights in the overlap region.

              The weights are relative to weights of other exposure metering regions, so if only one
              region is used, all non-zero weights will have the same effect. A region with 0
              weight is ignored.

              If all regions have 0 weight, then no specific metering area needs to be used by the
              camera device.

              If the metering region is outside the used android.scaler.cropRegion returned in
              capture result metadata, the camera device will ignore the sections outside the crop
              region and output only the intersection rectangle as the metering region in the result
              metadata.  If the region is entirely outside the crop region, it will be ignored and
              not reported in the result metadata.
          </details>
          <hal_details>
              The HAL level representation of MeteringRectangle[] is a
              int[5 * area_count].
              Every five elements represent a metering region of
              (xmin, ymin, xmax, ymax, weight).
              The rectangle is defined to be inclusive on xmin and ymin, but
              exclusive on xmax and ymax.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="aeTargetFpsRange" type="int32" visibility="public"
               container="array" typedef="rangeInt" hwlevel="legacy">
          <array>
            <size>2</size>
          </array>
          <description>Range over which the auto-exposure routine can
          adjust the capture frame rate to maintain good
          exposure.</description>
          <units>Frames per second (FPS)</units>
          <range>Any of the entries in android.control.aeAvailableTargetFpsRanges</range>
          <details>Only constrains auto-exposure (AE) algorithm, not
          manual control of android.sensor.exposureTime and
          android.sensor.frameDuration.</details>
          <tag id="BC" />
        </entry>
        <entry name="aePrecaptureTrigger" type="byte" visibility="public"
               enum="true" hwlevel="limited">
          <enum>
            <value>IDLE
              <notes>The trigger is idle.</notes>
            </value>
            <value>START
              <notes>The precapture metering sequence will be started
              by the camera device.

              The exact effect of the precapture trigger depends on
              the current AE mode and state.</notes>
            </value>
          </enum>
          <description>Whether the camera device will trigger a precapture
          metering sequence when it processes this request.</description>
          <details>This entry is normally set to IDLE, or is not
          included at all in the request settings. When included and
          set to START, the camera device will trigger the autoexposure
          precapture metering sequence.

          The precapture sequence should triggered before starting a
          high-quality still capture for final metering decisions to
          be made, and for firing pre-capture flash pulses to estimate
          scene brightness and required final capture flash power, when
          the flash is enabled.

          Normally, this entry should be set to START for only a
          single request, and the application should wait until the
          sequence completes before starting a new one.

          The exact effect of auto-exposure (AE) precapture trigger
          depends on the current AE mode and state; see
          android.control.aeState for AE precapture state transition
          details.

          On LEGACY-level devices, the precapture trigger is not supported;
          capturing a high-resolution JPEG image will automatically trigger a
          precapture sequence before the high-resolution capture, including
          potentially firing a pre-capture flash.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="afMode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>The auto-focus routine does not control the lens;
            android.lens.focusDistance is controlled by the
            application.</notes></value>
            <value>AUTO
            <notes>Basic automatic focus mode.

            In this mode, the lens does not move unless
            the autofocus trigger action is called. When that trigger
            is activated, AF will transition to ACTIVE_SCAN, then to
            the outcome of the scan (FOCUSED or NOT_FOCUSED).

            Always supported if lens is not fixed focus.

            Use android.lens.info.minimumFocusDistance to determine if lens
            is fixed-focus.

            Triggering AF_CANCEL resets the lens position to default,
            and sets the AF state to INACTIVE.</notes></value>
            <value>MACRO
            <notes>Close-up focusing mode.

            In this mode, the lens does not move unless the
            autofocus trigger action is called. When that trigger is
            activated, AF will transition to ACTIVE_SCAN, then to
            the outcome of the scan (FOCUSED or NOT_FOCUSED). This
            mode is optimized for focusing on objects very close to
            the camera.

            When that trigger is activated, AF will transition to
            ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
            NOT_FOCUSED). Triggering cancel AF resets the lens
            position to default, and sets the AF state to
            INACTIVE.</notes></value>
            <value>CONTINUOUS_VIDEO
            <notes>In this mode, the AF algorithm modifies the lens
            position continually to attempt to provide a
            constantly-in-focus image stream.

            The focusing behavior should be suitable for good quality
            video recording; typically this means slower focus
            movement and no overshoots. When the AF trigger is not
            involved, the AF algorithm should start in INACTIVE state,
            and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
            states as appropriate. When the AF trigger is activated,
            the algorithm should immediately transition into
            AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
            lens position until a cancel AF trigger is received.

            Once cancel is received, the algorithm should transition
            back to INACTIVE and resume passive scan. Note that this
            behavior is not identical to CONTINUOUS_PICTURE, since an
            ongoing PASSIVE_SCAN must immediately be
            canceled.</notes></value>
            <value>CONTINUOUS_PICTURE
            <notes>In this mode, the AF algorithm modifies the lens
            position continually to attempt to provide a
            constantly-in-focus image stream.

            The focusing behavior should be suitable for still image
            capture; typically this means focusing as fast as
            possible. When the AF trigger is not involved, the AF
            algorithm should start in INACTIVE state, and then
            transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
            appropriate as it attempts to maintain focus. When the AF
            trigger is activated, the algorithm should finish its
            PASSIVE_SCAN if active, and then transition into
            AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
            lens position until a cancel AF trigger is received.

            When the AF cancel trigger is activated, the algorithm
            should transition back to INACTIVE and then act as if it
            has just been started.</notes></value>
            <value>EDOF
            <notes>Extended depth of field (digital focus) mode.

            The camera device will produce images with an extended
            depth of field automatically; no special focusing
            operations need to be done before taking a picture.

            AF triggers are ignored, and the AF state will always be
            INACTIVE.</notes></value>
          </enum>
          <description>Whether auto-focus (AF) is currently enabled, and what
          mode it is set to.</description>
          <range>android.control.afAvailableModes</range>
          <details>Only effective if android.control.mode = AUTO and the lens is not fixed focus
          (i.e. `android.lens.info.minimumFocusDistance &gt; 0`).

          If the lens is controlled by the camera device auto-focus algorithm,
          the camera device will report the current AF status in android.control.afState
          in result metadata.</details>
          <hal_details>
          When afMode is AUTO or MACRO, the lens must not move until an AF trigger is sent in a
          request (android.control.afTrigger `==` START). After an AF trigger, the afState will end
          up with either FOCUSED_LOCKED or NOT_FOCUSED_LOCKED state (see
          android.control.afState for detailed state transitions), which indicates that the lens is
          locked and will not move. If camera movement (e.g. tilting camera) causes the lens to move
          after the lens is locked, the HAL must compensate this movement appropriately such that
          the same focal plane remains in focus.

          When afMode is one of the continuous auto focus modes, the HAL is free to start a AF
          scan whenever it's not locked. When the lens is locked after an AF trigger
          (see android.control.afState for detailed state transitions), the HAL should maintain the
          same lock behavior as above.

          When afMode is OFF, the application controls focus manually. The accuracy of the
          focus distance control depends on the android.lens.info.focusDistanceCalibration.
          However, the lens must not move regardless of the camera movement for any focus distance
          manual control.

          To put this in concrete terms, if the camera has lens elements which may move based on
          camera orientation or motion (e.g. due to gravity), then the HAL must drive the lens to
          remain in a fixed position invariant to the camera's orientation or motion, for example,
          by using accelerometer measurements in the lens control logic. This is a typical issue
          that will arise on camera modules with open-loop VCMs.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="afRegions" type="int32" visibility="public"
               optional="true" container="array" typedef="meteringRectangle">
          <array>
            <size>5</size>
            <size>area_count</size>
          </array>
          <description>List of metering areas to use for auto-focus.</description>
          <units>Pixel coordinates within android.sensor.info.activeArraySize</units>
          <range>Coordinates must be between `[(0,0), (width, height))` of
          android.sensor.info.activeArraySize</range>
          <details>
              Not available if android.control.maxRegionsAf is 0.
              Otherwise will always be present.

              The maximum number of focus areas supported by the device is determined by the value
              of android.control.maxRegionsAf.

              The coordinate system is based on the active pixel array,
              with (0,0) being the top-left pixel in the active pixel array, and
              (android.sensor.info.activeArraySize.width - 1,
              android.sensor.info.activeArraySize.height - 1) being the
              bottom-right pixel in the active pixel array.

              The weight must be within `[0, 1000]`, and represents a weight
              for every pixel in the area. This means that a large metering area
              with the same weight as a smaller area will have more effect in
              the metering result. Metering areas can partially overlap and the
              camera device will add the weights in the overlap region.

              The weights are relative to weights of other metering regions, so if only one region
              is used, all non-zero weights will have the same effect. A region with 0 weight is
              ignored.

              If all regions have 0 weight, then no specific metering area needs to be used by the
              camera device.

              If the metering region is outside the used android.scaler.cropRegion returned in
              capture result metadata, the camera device will ignore the sections outside the crop
              region and output only the intersection rectangle as the metering region in the result
              metadata. If the region is entirely outside the crop region, it will be ignored and
              not reported in the result metadata.
          </details>
          <hal_details>
              The HAL level representation of MeteringRectangle[] is a
              int[5 * area_count].
              Every five elements represent a metering region of
              (xmin, ymin, xmax, ymax, weight).
              The rectangle is defined to be inclusive on xmin and ymin, but
              exclusive on xmax and ymax.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="afTrigger" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>IDLE
              <notes>The trigger is idle.</notes>
            </value>
            <value>START
              <notes>Autofocus will trigger now.</notes>
            </value>
            <value>CANCEL
              <notes>Autofocus will return to its initial
              state, and cancel any currently active trigger.</notes>
            </value>
          </enum>
          <description>
          Whether the camera device will trigger autofocus for this request.
          </description>
          <details>This entry is normally set to IDLE, or is not
          included at all in the request settings.

          When included and set to START, the camera device will trigger the
          autofocus algorithm. If autofocus is disabled, this trigger has no effect.

          When set to CANCEL, the camera device will cancel any active trigger,
          and return to its initial AF state.

          Generally, applications should set this entry to START or CANCEL for only a
          single capture, and then return it to IDLE (or not set at all). Specifying
          START for multiple captures in a row means restarting the AF operation over
          and over again.

          See android.control.afState for what the trigger means for each AF mode.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="awbLock" type="byte" visibility="public" enum="true"
               typedef="boolean" hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>Auto-white balance lock is disabled; the AWB
            algorithm is free to update its parameters if in AUTO
            mode.</notes></value>
            <value>ON
            <notes>Auto-white balance lock is enabled; the AWB
            algorithm will not update its parameters while the lock
            is active.</notes></value>
          </enum>
          <description>Whether auto-white balance (AWB) is currently locked to its
          latest calculated values.</description>
          <details>
          When set to `true` (ON), the AWB algorithm is locked to its latest parameters,
          and will not change color balance settings until the lock is set to `false` (OFF).

          Since the camera device has a pipeline of in-flight requests, the settings that
          get locked do not necessarily correspond to the settings that were present in the
          latest capture result received from the camera device, since additional captures
          and AWB updates may have occurred even before the result was sent out. If an
          application is switching between automatic and manual control and wishes to eliminate
          any flicker during the switch, the following procedure is recommended:

            1. Starting in auto-AWB mode:
            2. Lock AWB
            3. Wait for the first result to be output that has the AWB locked
            4. Copy AWB settings from that result into a request, set the request to manual AWB
            5. Submit the capture request, proceed to run manual AWB as desired.

          Note that AWB lock is only meaningful when
          android.control.awbMode is in the AUTO mode; in other modes,
          AWB is already fixed to a specific setting.

          Some LEGACY devices may not support ON; the value is then overridden to OFF.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="awbMode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>
            The camera device's auto-white balance routine is disabled.

            The application-selected color transform matrix
            (android.colorCorrection.transform) and gains
            (android.colorCorrection.gains) are used by the camera
            device for manual white balance control.
            </notes>
            </value>
            <value>AUTO
            <notes>
            The camera device's auto-white balance routine is active.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>INCANDESCENT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses incandescent light as the assumed scene
            illumination for white balance.

            While the exact white balance transforms are up to the
            camera device, they will approximately match the CIE
            standard illuminant A.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>FLUORESCENT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses fluorescent light as the assumed scene
            illumination for white balance.

            While the exact white balance transforms are up to the
            camera device, they will approximately match the CIE
            standard illuminant F2.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>WARM_FLUORESCENT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses warm fluorescent light as the assumed scene
            illumination for white balance.

            While the exact white balance transforms are up to the
            camera device, they will approximately match the CIE
            standard illuminant F4.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>DAYLIGHT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses daylight light as the assumed scene
            illumination for white balance.

            While the exact white balance transforms are up to the
            camera device, they will approximately match the CIE
            standard illuminant D65.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>CLOUDY_DAYLIGHT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses cloudy daylight light as the assumed scene
            illumination for white balance.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>TWILIGHT
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses twilight light as the assumed scene
            illumination for white balance.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
            <value>SHADE
            <notes>
            The camera device's auto-white balance routine is disabled;
            the camera device uses shade light as the assumed scene
            illumination for white balance.

            The application's values for android.colorCorrection.transform
            and android.colorCorrection.gains are ignored.
            For devices that support the MANUAL_POST_PROCESSING capability, the
            values used by the camera device for the transform and gains
            will be available in the capture result for this request.
            </notes>
            </value>
          </enum>
          <description>Whether auto-white balance (AWB) is currently setting the color
          transform fields, and what its illumination target
          is.</description>
          <range>android.control.awbAvailableModes</range>
          <details>
          This control is only effective if android.control.mode is AUTO.

          When set to the ON mode, the camera device's auto-white balance
          routine is enabled, overriding the application's selected
          android.colorCorrection.transform, android.colorCorrection.gains and
          android.colorCorrection.mode.

          When set to the OFF mode, the camera device's auto-white balance
          routine is disabled. The application manually controls the white
          balance by android.colorCorrection.transform, android.colorCorrection.gains
          and android.colorCorrection.mode.

          When set to any other modes, the camera device's auto-white
          balance routine is disabled. The camera device uses each
          particular illumination target for white balance
          adjustment. The application's values for
          android.colorCorrection.transform,
          android.colorCorrection.gains and
          android.colorCorrection.mode are ignored.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="awbRegions" type="int32" visibility="public"
               optional="true" container="array" typedef="meteringRectangle">
          <array>
            <size>5</size>
            <size>area_count</size>
          </array>
          <description>List of metering areas to use for auto-white-balance illuminant
          estimation.</description>
          <units>Pixel coordinates within android.sensor.info.activeArraySize</units>
          <range>Coordinates must be between `[(0,0), (width, height))` of
          android.sensor.info.activeArraySize</range>
          <details>
              Not available if android.control.maxRegionsAwb is 0.
              Otherwise will always be present.

              The maximum number of regions supported by the device is determined by the value
              of android.control.maxRegionsAwb.

              The coordinate system is based on the active pixel array,
              with (0,0) being the top-left pixel in the active pixel array, and
              (android.sensor.info.activeArraySize.width - 1,
              android.sensor.info.activeArraySize.height - 1) being the
              bottom-right pixel in the active pixel array.

              The weight must range from 0 to 1000, and represents a weight
              for every pixel in the area. This means that a large metering area
              with the same weight as a smaller area will have more effect in
              the metering result. Metering areas can partially overlap and the
              camera device will add the weights in the overlap region.

              The weights are relative to weights of other white balance metering regions, so if
              only one region is used, all non-zero weights will have the same effect. A region with
              0 weight is ignored.

              If all regions have 0 weight, then no specific metering area needs to be used by the
              camera device.

              If the metering region is outside the used android.scaler.cropRegion returned in
              capture result metadata, the camera device will ignore the sections outside the crop
              region and output only the intersection rectangle as the metering region in the result
              metadata.  If the region is entirely outside the crop region, it will be ignored and
              not reported in the result metadata.
          </details>
          <hal_details>
              The HAL level representation of MeteringRectangle[] is a
              int[5 * area_count].
              Every five elements represent a metering region of
              (xmin, ymin, xmax, ymax, weight).
              The rectangle is defined to be inclusive on xmin and ymin, but
              exclusive on xmax and ymax.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="captureIntent" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>CUSTOM
            <notes>The goal of this request doesn't fall into the other
            categories. The camera device will default to preview-like
            behavior.</notes></value>
            <value>PREVIEW
            <notes>This request is for a preview-like use case.

            The precapture trigger may be used to start off a metering
            w/flash sequence.
            </notes></value>
            <value>STILL_CAPTURE
            <notes>This request is for a still capture-type
            use case.

            If the flash unit is under automatic control, it may fire as needed.
            </notes></value>
            <value>VIDEO_RECORD
            <notes>This request is for a video recording
            use case.</notes></value>
            <value>VIDEO_SNAPSHOT
            <notes>This request is for a video snapshot (still
            image while recording video) use case.

            The camera device should take the highest-quality image
            possible (given the other settings) without disrupting the
            frame rate of video recording.  </notes></value>
            <value>ZERO_SHUTTER_LAG
            <notes>This request is for a ZSL usecase; the
            application will stream full-resolution images and
            reprocess one or several later for a final
            capture.
            </notes></value>
            <value>MANUAL
            <notes>This request is for manual capture use case where
            the applications want to directly control the capture parameters.

            For example, the application may wish to manually control
            android.sensor.exposureTime, android.sensor.sensitivity, etc.
            </notes></value>
          </enum>
          <description>Information to the camera device 3A (auto-exposure,
          auto-focus, auto-white balance) routines about the purpose
          of this capture, to help the camera device to decide optimal 3A
          strategy.</description>
          <details>This control (except for MANUAL) is only effective if
          `android.control.mode != OFF` and any 3A routine is active.

          ZERO_SHUTTER_LAG will be supported if android.request.availableCapabilities
          contains ZSL. MANUAL will be supported if android.request.availableCapabilities
          contains MANUAL_SENSOR. Other intent values are always supported.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="effectMode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>OFF
              <notes>
              No color effect will be applied.
              </notes>
            </value>
            <value optional="true">MONO
              <notes>
              A "monocolor" effect where the image is mapped into
              a single color.

              This will typically be grayscale.
              </notes>
            </value>
            <value optional="true">NEGATIVE
              <notes>
              A "photo-negative" effect where the image's colors
              are inverted.
              </notes>
            </value>
            <value optional="true">SOLARIZE
              <notes>
              A "solarisation" effect (Sabattier effect) where the
              image is wholly or partially reversed in
              tone.
              </notes>
            </value>
            <value optional="true">SEPIA
              <notes>
              A "sepia" effect where the image is mapped into warm
              gray, red, and brown tones.
              </notes>
            </value>
            <value optional="true">POSTERIZE
              <notes>
              A "posterization" effect where the image uses
              discrete regions of tone rather than a continuous
              gradient of tones.
              </notes>
            </value>
            <value optional="true">WHITEBOARD
              <notes>
              A "whiteboard" effect where the image is typically displayed
              as regions of white, with black or grey details.
              </notes>
            </value>
            <value optional="true">BLACKBOARD
              <notes>
              A "blackboard" effect where the image is typically displayed
              as regions of black, with white or grey details.
              </notes>
            </value>
            <value optional="true">AQUA
              <notes>
              An "aqua" effect where a blue hue is added to the image.
              </notes>
            </value>
          </enum>
          <description>A special color effect to apply.</description>
          <range>android.control.availableEffects</range>
          <details>
          When this mode is set, a color effect will be applied
          to images produced by the camera device. The interpretation
          and implementation of these color effects is left to the
          implementor of the camera device, and should not be
          depended on to be consistent (or present) across all
          devices.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="mode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>Full application control of pipeline.

            All control by the device's metering and focusing (3A)
            routines is disabled, and no other settings in
            android.control.* have any effect, except that
            android.control.captureIntent may be used by the camera
            device to select post-processing values for processing
            blocks that do not allow for manual control, or are not
            exposed by the camera API.

            However, the camera device's 3A routines may continue to
            collect statistics and update their internal state so that
            when control is switched to AUTO mode, good control values
            can be immediately applied.
            </notes></value>
            <value>AUTO
            <notes>Use settings for each individual 3A routine.

            Manual control of capture parameters is disabled. All
            controls in android.control.* besides sceneMode take
            effect.</notes></value>
            <value>USE_SCENE_MODE
            <notes>Use a specific scene mode.

            Enabling this disables control.aeMode, control.awbMode and
            control.afMode controls; the camera device will ignore
            those settings while USE_SCENE_MODE is active (except for
            FACE_PRIORITY scene mode). Other control entries are still
            active.  This setting can only be used if scene mode is
            supported (i.e. android.control.availableSceneModes
            contain some modes other than DISABLED).</notes></value>
            <value>OFF_KEEP_STATE
            <notes>Same as OFF mode, except that this capture will not be
            used by camera device background auto-exposure, auto-white balance and
            auto-focus algorithms (3A) to update their statistics.

            Specifically, the 3A routines are locked to the last
            values set from a request with AUTO, OFF, or
            USE_SCENE_MODE, and any statistics or state updates
            collected from manual captures with OFF_KEEP_STATE will be
            discarded by the camera device.
            </notes></value>
          </enum>
          <description>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
          routines.</description>
          <details>
          This is a top-level 3A control switch. When set to OFF, all 3A control
          by the camera device is disabled. The application must set the fields for
          capture parameters itself.

          When set to AUTO, the individual algorithm controls in
          android.control.* are in effect, such as android.control.afMode.

          When set to USE_SCENE_MODE, the individual controls in
          android.control.* are mostly disabled, and the camera device implements
          one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
          as it wishes. The camera device scene mode 3A settings are provided by
          android.control.sceneModeOverrides.

          When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
          is that this frame will not be used by camera device background 3A statistics
          update, as if this frame is never captured. This mode can be used in the scenario
          where the application doesn't want a 3A manual control capture to affect
          the subsequent auto 3A capture results.

          LEGACY mode devices will only support AUTO and USE_SCENE_MODE modes.
          LIMITED mode devices will only support OFF and OFF_KEEP_STATE if they
          support the MANUAL_SENSOR and MANUAL_POST_PROCSESING capabilities.
          FULL mode devices will always support OFF and OFF_KEEP_STATE.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="sceneMode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value id="0">DISABLED
              <notes>
              Indicates that no scene modes are set for a given capture request.
              </notes>
            </value>
            <value>FACE_PRIORITY
              <notes>If face detection support exists, use face
              detection data for auto-focus, auto-white balance, and
              auto-exposure routines.

              If face detection statistics are disabled
              (i.e. android.statistics.faceDetectMode is set to OFF),
              this should still operate correctly (but will not return
              face detection statistics to the framework).

              Unlike the other scene modes, android.control.aeMode,
              android.control.awbMode, and android.control.afMode
              remain active when FACE_PRIORITY is set.
              </notes>
            </value>
            <value optional="true">ACTION
              <notes>
              Optimized for photos of quickly moving objects.

              Similar to SPORTS.
              </notes>
            </value>
            <value optional="true">PORTRAIT
              <notes>
              Optimized for still photos of people.
              </notes>
            </value>
            <value optional="true">LANDSCAPE
              <notes>
              Optimized for photos of distant macroscopic objects.
              </notes>
            </value>
            <value optional="true">NIGHT
              <notes>
              Optimized for low-light settings.
              </notes>
            </value>
            <value optional="true">NIGHT_PORTRAIT
              <notes>
              Optimized for still photos of people in low-light
              settings.
              </notes>
            </value>
            <value optional="true">THEATRE
              <notes>
              Optimized for dim, indoor settings where flash must
              remain off.
              </notes>
            </value>
            <value optional="true">BEACH
              <notes>
              Optimized for bright, outdoor beach settings.
              </notes>
            </value>
            <value optional="true">SNOW
              <notes>
              Optimized for bright, outdoor settings containing snow.
              </notes>
            </value>
            <value optional="true">SUNSET
              <notes>
              Optimized for scenes of the setting sun.
              </notes>
            </value>
            <value optional="true">STEADYPHOTO
              <notes>
              Optimized to avoid blurry photos due to small amounts of
              device motion (for example: due to hand shake).
              </notes>
            </value>
            <value optional="true">FIREWORKS
              <notes>
              Optimized for nighttime photos of fireworks.
              </notes>
            </value>
            <value optional="true">SPORTS
              <notes>
              Optimized for photos of quickly moving people.

              Similar to ACTION.
              </notes>
            </value>
            <value optional="true">PARTY
              <notes>
              Optimized for dim, indoor settings with multiple moving
              people.
              </notes>
            </value>
            <value optional="true">CANDLELIGHT
              <notes>
              Optimized for dim settings where the main light source
              is a flame.
              </notes>
            </value>
            <value optional="true">BARCODE
              <notes>
              Optimized for accurately capturing a photo of barcode
              for use by camera applications that wish to read the
              barcode value.
              </notes>
            </value>
            <value optional="true">HIGH_SPEED_VIDEO
              <notes>
              Optimized for high speed video recording (frame rate >=60fps) use case.

              The supported high speed video sizes and fps ranges are specified in
              android.control.availableHighSpeedVideoConfigurations. To get desired
              output frame rates, the application is only allowed to select video size
              and fps range combinations listed in this static metadata. The fps range
              can be control via android.control.aeTargetFpsRange.

              In this mode, the camera device will override aeMode, awbMode, and afMode to
              ON, ON, and CONTINUOUS_VIDEO, respectively. All post-processing block mode
              controls will be overridden to be FAST. Therefore, no manual control of capture
              and post-processing parameters is possible. All other controls operate the
              same as when android.control.mode == AUTO. This means that all other
              android.control.* fields continue to work, such as

              * android.control.aeTargetFpsRange
              * android.control.aeExposureCompensation
              * android.control.aeLock
              * android.control.awbLock
              * android.control.effectMode
              * android.control.aeRegions
              * android.control.afRegions
              * android.control.awbRegions
              * android.control.afTrigger
              * android.control.aePrecaptureTrigger

              Outside of android.control.*, the following controls will work:

              * android.flash.mode (automatic flash for still capture will not work since aeMode is ON)
              * android.lens.opticalStabilizationMode (if it is supported)
              * android.scaler.cropRegion
              * android.statistics.faceDetectMode

              For high speed recording use case, the actual maximum supported frame rate may
              be lower than what camera can output, depending on the destination Surfaces for
              the image data. For example, if the destination surface is from video encoder,
              the application need check if the video encoder is capable of supporting the
              high frame rate for a given video size, or it will end up with lower recording
              frame rate. If the destination surface is from preview window, the preview frame
              rate will be bounded by the screen refresh rate.

              The camera device will only support up to 2 output high speed streams
              (processed non-stalling format defined in android.request.maxNumOutputStreams)
              in this mode. This control will be effective only if all of below conditions are true:

              * The application created no more than maxNumHighSpeedStreams processed non-stalling
              format output streams, where maxNumHighSpeedStreams is calculated as
              min(2, android.request.maxNumOutputStreams[Processed (but not-stalling)]).
              * The stream sizes are selected from the sizes reported by
              android.control.availableHighSpeedVideoConfigurations.
              * No processed non-stalling or raw streams are configured.

              When above conditions are NOT satistied, the controls of this mode and
              android.control.aeTargetFpsRange will be ignored by the camera device,
              the camera device will fall back to android.control.mode `==` AUTO,
              and the returned capture result metadata will give the fps range choosen
              by the camera device.

              Switching into or out of this mode may trigger some camera ISP/sensor
              reconfigurations, which may introduce extra latency. It is recommended that
              the application avoids unnecessary scene mode switch as much as possible.
              </notes>
            </value>
            <value optional="true" hidden="true">HDR
              <notes>
              Turn on custom high dynamic range (HDR) mode.

              This is intended for LEGACY mode devices only;
              HAL3+ camera devices should not implement this mode.
              </notes>
            </value>
          </enum>
          <description>
          Control for which scene mode is currently active.
          </description>
          <range>android.control.availableSceneModes</range>
          <details>
          Scene modes are custom camera modes optimized for a certain set of conditions and
          capture settings.

          This is the mode that that is active when
          `android.control.mode == USE_SCENE_MODE`. Aside from FACE_PRIORITY,
          these modes will disable android.control.aeMode,
          android.control.awbMode, and android.control.afMode while in use.

          The interpretation and implementation of these scene modes is left
          to the implementor of the camera device. Their behavior will not be
          consistent across all devices, and any given device may only implement
          a subset of these modes.
          </details>
          <hal_details>
          HAL implementations that include scene modes are expected to provide
          the per-scene settings to use for android.control.aeMode,
          android.control.awbMode, and android.control.afMode in
          android.control.sceneModeOverrides.

          For HIGH_SPEED_VIDEO mode, if it is included in android.control.availableSceneModes,
          the HAL must list supported video size and fps range in
          android.control.availableHighSpeedVideoConfigurations. For a given size, e.g.
          1280x720, if the HAL has two different sensor configurations for normal streaming
          mode and high speed streaming, when this scene mode is set/reset in a sequence of capture
          requests, the HAL may have to switch between different sensor modes.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="videoStabilizationMode" type="byte" visibility="public"
               enum="true" hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>
              Video stabilization is disabled.
            </notes></value>
            <value>ON
            <notes>
              Video stabilization is enabled.
            </notes></value>
          </enum>
          <description>Whether video stabilization is
          active.</description>
          <details>
          Video stabilization automatically translates and scales images from
          the camera in order to stabilize motion between consecutive frames.

          If enabled, video stabilization can modify the
          android.scaler.cropRegion to keep the video stream stabilized.

          Switching between different video stabilization modes may take several
          frames to initialize, the camera device will report the current mode
          in capture result metadata. For example, When "ON" mode is requested,
          the video stabilization modes in the first several capture results may
          still be "OFF", and it will become "ON" when the initialization is
          done.

          If a camera device supports both this mode and OIS
          (android.lens.opticalStabilizationMode), turning both modes on may
          produce undesirable interaction, so it is recommended not to enable
          both at the same time.
          </details>
          <tag id="BC" />
        </entry>
      </controls>
      <static>
        <entry name="aeAvailableAntibandingModes" type="byte" visibility="public"
               type_notes="list of enums" container="array" typedef="enumList"
               hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
            List of auto-exposure antibanding modes for android.control.aeAntibandingMode that are
            supported by this camera device.
          </description>
          <range>Any value listed in android.control.aeAntibandingMode</range>
          <details>
            Not all of the auto-exposure anti-banding modes may be
            supported by a given camera device. This field lists the
            valid anti-banding modes that the application may request
            for this camera device with the
            android.control.aeAntibandingMode control. This list
            always includes AUTO.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeAvailableModes" type="byte" visibility="public"
               type_notes="list of enums" container="array" typedef="enumList"
               hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
            List of auto-exposure modes for android.control.aeMode that are supported by this camera
            device.
          </description>
          <range>Any value listed in android.control.aeMode</range>
          <details>
            Not all the auto-exposure modes may be supported by a
            given camera device, especially if no flash unit is
            available. This entry lists the valid modes for
            android.control.aeMode for this camera device.

            All camera devices support ON, and all camera devices with flash
            units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.

            FULL mode camera devices always support OFF mode,
            which enables application control of camera exposure time,
            sensitivity, and frame duration.

            LEGACY mode camera devices never support OFF mode.
            LIMITED mode devices support OFF if they support the MANUAL_SENSOR
            capability.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeAvailableTargetFpsRanges" type="int32" visibility="public"
               type_notes="list of pairs of frame rates"
               container="array" typedef="rangeInt"
               hwlevel="legacy">
          <array>
            <size>2</size>
            <size>n</size>
          </array>
          <description>List of frame rate ranges for android.control.aeTargetFpsRange supported by
          this camera device.</description>
          <units>Frames per second (FPS)</units>
          <details>
          For devices at the LIMITED level or above, this list will include at least (30, 30) for
          constant-framerate recording.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="aeCompensationRange" type="int32" visibility="public"
               container="array" typedef="rangeInt"
               hwlevel="legacy">
          <array>
            <size>2</size>
          </array>
          <description>Maximum and minimum exposure compensation values for
          android.control.aeExposureCompensation, in counts of android.control.aeCompensationStep,
          that are supported by this camera device.</description>
          <range>
            `Min.exposure compensation * android.control.aeCompensationStep &lt;= -2 EV`

            `Max.exposure compensation * android.control.aeCompensationStep &gt;= 2 EV`
          </range>
          <tag id="BC" />
        </entry>
        <entry name="aeCompensationStep" type="rational" visibility="public"
               hwlevel="legacy">
          <description>Smallest step by which the exposure compensation
          can be changed.</description>
          <units>Exposure Value (EV)</units>
          <details>
          This is the unit for android.control.aeExposureCompensation. For example, if this key has
          a value of `1/2`, then a setting of `-2` for android.control.aeExposureCompensation means
          that the target EV offset for the auto-exposure routine is -1 EV.

          One unit of EV compensation changes the brightness of the captured image by a factor
          of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.
          </details>
          <hal_details>
            This must be less than or equal to 1/2.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="afAvailableModes" type="byte" visibility="public"
               type_notes="List of enums" container="array" typedef="enumList"
               hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
          List of auto-focus (AF) modes for android.control.afMode that are
          supported by this camera device.
          </description>
          <range>Any value listed in android.control.afMode</range>
          <details>
          Not all the auto-focus modes may be supported by a
          given camera device. This entry lists the valid modes for
          android.control.afMode for this camera device.

          All LIMITED and FULL mode camera devices will support OFF mode, and all
          camera devices with adjustable focuser units
          (`android.lens.info.minimumFocusDistance &gt; 0`) will support AUTO mode.

          LEGACY devices will support OFF mode only if they support
          focusing to infinity (by also setting android.lens.focusDistance to
          `0.0f`).
          </details>
          <tag id="BC" />
        </entry>
        <entry name="availableEffects" type="byte" visibility="public"
               type_notes="List of enums (android.control.effectMode)." container="array"
               typedef="enumList" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
          List of color effects for android.control.effectMode that are supported by this camera
          device.
          </description>
          <range>Any value listed in android.control.effectMode</range>
          <details>
          This list contains the color effect modes that can be applied to
          images produced by the camera device.
          Implementations are not expected to be consistent across all devices.
          If no color effect modes are available for a device, this will only list
          OFF.

          A color effect will only be applied if
          android.control.mode != OFF.  OFF is always included in this list.

          This control has no effect on the operation of other control routines such
          as auto-exposure, white balance, or focus.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="availableSceneModes" type="byte" visibility="public"
               type_notes="List of enums (android.control.sceneMode)."
               container="array" typedef="enumList" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
          List of scene modes for android.control.sceneMode that are supported by this camera
          device.
          </description>
          <range>Any value listed in android.control.sceneMode</range>
          <details>
          This list contains scene modes that can be set for the camera device.
          Only scene modes that have been fully implemented for the
          camera device may be included here. Implementations are not expected
          to be consistent across all devices.

          If no scene modes are supported by the camera device, this
          will be set to DISABLED. Otherwise DISABLED will not be listed.

          FACE_PRIORITY is always listed if face detection is
          supported (i.e.`android.statistics.info.maxFaceCount &gt;
          0`).
          </details>
          <tag id="BC" />
        </entry>
        <entry name="availableVideoStabilizationModes" type="byte"
               visibility="public" type_notes="List of enums." container="array"
               typedef="enumList" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
          List of video stabilization modes for android.control.videoStabilizationMode
          that are supported by this camera device.
          </description>
          <range>Any value listed in android.control.videoStabilizationMode</range>
          <details>
          OFF will always be listed.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="awbAvailableModes" type="byte" visibility="public"
               type_notes="List of enums"
               container="array" typedef="enumList" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>
          List of auto-white-balance modes for android.control.awbMode that are supported by this
          camera device.
          </description>
          <range>Any value listed in android.control.awbMode</range>
          <details>
          Not all the auto-white-balance modes may be supported by a
          given camera device. This entry lists the valid modes for
          android.control.awbMode for this camera device.

          All camera devices will support ON mode.

          Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
          mode, which enables application control of white balance, by using
          android.colorCorrection.transform and android.colorCorrection.gains
          (android.colorCorrection.mode must be set to TRANSFORM_MATRIX). This includes all FULL
          mode camera devices.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="maxRegions" type="int32" visibility="hidden"
               container="array" hwlevel="legacy">
          <array>
            <size>3</size>
          </array>
          <description>
          List of the maximum number of regions that can be used for metering in
          auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
          this corresponds to the the maximum number of elements in
          android.control.aeRegions, android.control.awbRegions,
          and android.control.afRegions.
          </description>
          <range>
          Value must be &amp;gt;= 0 for each element. For full-capability devices
          this value must be &amp;gt;= 1 for AE and AF. The order of the elements is:
          `(AE, AWB, AF)`.</range>
          <tag id="BC" />
        </entry>
        <entry name="maxRegionsAe" type="int32" visibility="public"
               synthetic="true" hwlevel="legacy">
          <description>
          The maximum number of metering regions that can be used by the auto-exposure (AE)
          routine.
          </description>
          <range>Value will be &amp;gt;= 0. For FULL-capability devices, this
          value will be &amp;gt;= 1.
          </range>
          <details>
          This corresponds to the the maximum allowed number of elements in
          android.control.aeRegions.
          </details>
          <hal_details>This entry is private to the framework. Fill in
          maxRegions to have this entry be automatically populated.
          </hal_details>
        </entry>
        <entry name="maxRegionsAwb" type="int32" visibility="public"
               synthetic="true" hwlevel="legacy">
          <description>
          The maximum number of metering regions that can be used by the auto-white balance (AWB)
          routine.
          </description>
          <range>Value will be &amp;gt;= 0.
          </range>
          <details>
          This corresponds to the the maximum allowed number of elements in
          android.control.awbRegions.
          </details>
          <hal_details>This entry is private to the framework. Fill in
          maxRegions to have this entry be automatically populated.
          </hal_details>
        </entry>
        <entry name="maxRegionsAf" type="int32" visibility="public"
               synthetic="true" hwlevel="legacy">
          <description>
          The maximum number of metering regions that can be used by the auto-focus (AF) routine.
          </description>
          <range>Value will be &amp;gt;= 0. For FULL-capability devices, this
          value will be &amp;gt;= 1.
          </range>
          <details>
          This corresponds to the the maximum allowed number of elements in
          android.control.afRegions.
          </details>
          <hal_details>This entry is private to the framework. Fill in
          maxRegions to have this entry be automatically populated.
          </hal_details>
        </entry>
        <entry name="sceneModeOverrides" type="byte" visibility="system"
               container="array" hwlevel="limited">
          <array>
            <size>3</size>
            <size>length(availableSceneModes)</size>
          </array>
          <description>
          Ordered list of auto-exposure, auto-white balance, and auto-focus
          settings to use with each available scene mode.
          </description>
          <range>
          For each available scene mode, the list must contain three
          entries containing the android.control.aeMode,
          android.control.awbMode, and android.control.afMode values used
          by the camera device. The entry order is `(aeMode, awbMode, afMode)`
          where aeMode has the lowest index position.
          </range>
          <details>
          When a scene mode is enabled, the camera device is expected
          to override android.control.aeMode, android.control.awbMode,
          and android.control.afMode with its preferred settings for
          that scene mode.

          The order of this list matches that of availableSceneModes,
          with 3 entries for each mode.  The overrides listed
          for FACE_PRIORITY are ignored, since for that
          mode the application-set android.control.aeMode,
          android.control.awbMode, and android.control.afMode values are
          used instead, matching the behavior when android.control.mode
          is set to AUTO. It is recommended that the FACE_PRIORITY
          overrides should be set to 0.

          For example, if availableSceneModes contains
          `(FACE_PRIORITY, ACTION, NIGHT)`,  then the camera framework
          expects sceneModeOverrides to have 9 entries formatted like:
          `(0, 0, 0, ON_AUTO_FLASH, AUTO, CONTINUOUS_PICTURE,
          ON_AUTO_FLASH, INCANDESCENT, AUTO)`.
          </details>
          <hal_details>
          To maintain backward compatibility, this list will be made available
          in the static metadata of the camera service.  The camera service will
          use these values to set android.control.aeMode,
          android.control.awbMode, and android.control.afMode when using a scene
          mode other than FACE_PRIORITY.
          </hal_details>
          <tag id="BC" />
        </entry>
      </static>
      <dynamic>
        <entry name="aePrecaptureId" type="int32" visibility="system" deprecated="true">
          <description>The ID sent with the latest
          CAMERA2_TRIGGER_PRECAPTURE_METERING call</description>
          <details>Must be 0 if no
          CAMERA2_TRIGGER_PRECAPTURE_METERING trigger received yet
          by HAL. Always updated even if AE algorithm ignores the
          trigger</details>
        </entry>
        <clone entry="android.control.aeAntibandingMode" kind="controls">
        </clone>
        <clone entry="android.control.aeExposureCompensation" kind="controls">
        </clone>
        <clone entry="android.control.aeLock" kind="controls">
        </clone>
        <clone entry="android.control.aeMode" kind="controls">
        </clone>
        <clone entry="android.control.aeRegions" kind="controls">
        </clone>
        <clone entry="android.control.aeTargetFpsRange" kind="controls">
        </clone>
        <clone entry="android.control.aePrecaptureTrigger" kind="controls">
        </clone>
        <entry name="aeState" type="byte" visibility="public" enum="true"
               hwlevel="limited">
          <enum>
            <value>INACTIVE
            <notes>AE is off or recently reset.

            When a camera device is opened, it starts in
            this state. This is a transient state, the camera device may skip reporting
            this state in capture result.</notes></value>
            <value>SEARCHING
            <notes>AE doesn't yet have a good set of control values
            for the current scene.

            This is a transient state, the camera device may skip
            reporting this state in capture result.</notes></value>
            <value>CONVERGED
            <notes>AE has a good set of control values for the
            current scene.</notes></value>
            <value>LOCKED
            <notes>AE has been locked.</notes></value>
            <value>FLASH_REQUIRED
            <notes>AE has a good set of control values, but flash
            needs to be fired for good quality still
            capture.</notes></value>
            <value>PRECAPTURE
            <notes>AE has been asked to do a precapture sequence
            and is currently executing it.

            Precapture can be triggered through setting
            android.control.aePrecaptureTrigger to START.

            Once PRECAPTURE completes, AE will transition to CONVERGED
            or FLASH_REQUIRED as appropriate. This is a transient
            state, the camera device may skip reporting this state in
            capture result.</notes></value>
          </enum>
          <description>Current state of the auto-exposure (AE) algorithm.</description>
          <details>Switching between or enabling AE modes (android.control.aeMode) always
          resets the AE state to INACTIVE. Similarly, switching between android.control.mode,
          or android.control.sceneMode if `android.control.mode == USE_SCENE_MODE` resets all
          the algorithm states to INACTIVE.

          The camera device can do several state transitions between two results, if it is
          allowed by the state transition table. For example: INACTIVE may never actually be
          seen in a result.

          The state in the result is the state for this image (in sync with this image): if
          AE state becomes CONVERGED, then the image data associated with this result should
          be good to use.

          Below are state transition tables for different AE modes.

            State       | Transition Cause | New State | Notes
          :------------:|:----------------:|:---------:|:-----------------------:
          INACTIVE      |                  | INACTIVE  | Camera device auto exposure algorithm is disabled

          When android.control.aeMode is AE_MODE_ON_*:

            State        | Transition Cause                             | New State      | Notes
          :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
          INACTIVE       | Camera device initiates AE scan              | SEARCHING      | Values changing
          INACTIVE       | android.control.aeLock is ON                 | LOCKED         | Values locked
          SEARCHING      | Camera device finishes AE scan               | CONVERGED      | Good values, not changing
          SEARCHING      | Camera device finishes AE scan               | FLASH_REQUIRED | Converged but too dark w/o flash
          SEARCHING      | android.control.aeLock is ON                 | LOCKED         | Values locked
          CONVERGED      | Camera device initiates AE scan              | SEARCHING      | Values changing
          CONVERGED      | android.control.aeLock is ON                 | LOCKED         | Values locked
          FLASH_REQUIRED | Camera device initiates AE scan              | SEARCHING      | Values changing
          FLASH_REQUIRED | android.control.aeLock is ON                 | LOCKED         | Values locked
          LOCKED         | android.control.aeLock is OFF                | SEARCHING      | Values not good after unlock
          LOCKED         | android.control.aeLock is OFF                | CONVERGED      | Values good after unlock
          LOCKED         | android.control.aeLock is OFF                | FLASH_REQUIRED | Exposure good, but too dark
          PRECAPTURE     | Sequence done. android.control.aeLock is OFF | CONVERGED      | Ready for high-quality capture
          PRECAPTURE     | Sequence done. android.control.aeLock is ON  | LOCKED         | Ready for high-quality capture
          Any state      | android.control.aePrecaptureTrigger is START | PRECAPTURE     | Start AE precapture metering sequence

          For the above table, the camera device may skip reporting any state changes that happen
          without application intervention (i.e. mode switch, trigger, locking). Any state that
          can be skipped in that manner is called a transient state.

          For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
          listed in above table, it is also legal for the camera device to skip one or more
          transient states between two results. See below table for examples:

            State        | Transition Cause                                            | New State      | Notes
          :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
          INACTIVE       | Camera device finished AE scan                              | CONVERGED      | Values are already good, transient states are skipped by camera device.
          Any state      | android.control.aePrecaptureTrigger is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
          Any state      | android.control.aePrecaptureTrigger is START, sequence done | CONVERGED      | Converged after a precapture sequence, transient states are skipped by camera device.
          CONVERGED      | Camera device finished AE scan                              | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
          FLASH_REQUIRED | Camera device finished AE scan                              | CONVERGED      | Converged after a new scan, transient states are skipped by camera device.
          </details>
        </entry>
        <clone entry="android.control.afMode" kind="controls">
        </clone>
        <clone entry="android.control.afRegions" kind="controls">
        </clone>
        <clone entry="android.control.afTrigger" kind="controls">
        </clone>
        <entry name="afState" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>INACTIVE
            <notes>AF is off or has not yet tried to scan/been asked
            to scan.

            When a camera device is opened, it starts in this
            state. This is a transient state, the camera device may
            skip reporting this state in capture
            result.</notes></value>
            <value>PASSIVE_SCAN
            <notes>AF is currently performing an AF scan initiated the
            camera device in a continuous autofocus mode.

            Only used by CONTINUOUS_* AF modes. This is a transient
            state, the camera device may skip reporting this state in
            capture result.</notes></value>
            <value>PASSIVE_FOCUSED
            <notes>AF currently believes it is in focus, but may
            restart scanning at any time.

            Only used by CONTINUOUS_* AF modes. This is a transient
            state, the camera device may skip reporting this state in
            capture result.</notes></value>
            <value>ACTIVE_SCAN
            <notes>AF is performing an AF scan because it was
            triggered by AF trigger.

            Only used by AUTO or MACRO AF modes. This is a transient
            state, the camera device may skip reporting this state in
            capture result.</notes></value>
            <value>FOCUSED_LOCKED
            <notes>AF believes it is focused correctly and has locked
            focus.

            This state is reached only after an explicit START AF trigger has been
            sent (android.control.afTrigger), when good focus has been obtained.

            The lens will remain stationary until the AF mode (android.control.afMode) is changed or
            a new AF trigger is sent to the camera device (android.control.afTrigger).
            </notes></value>
            <value>NOT_FOCUSED_LOCKED
            <notes>AF has failed to focus successfully and has locked
            focus.

            This state is reached only after an explicit START AF trigger has been
            sent (android.control.afTrigger), when good focus cannot be obtained.

            The lens will remain stationary until the AF mode (android.control.afMode) is changed or
            a new AF trigger is sent to the camera device (android.control.afTrigger).
            </notes></value>
            <value>PASSIVE_UNFOCUSED
            <notes>AF finished a passive scan without finding focus,
            and may restart scanning at any time.

            Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
            device may skip reporting this state in capture result.

            LEGACY camera devices do not support this state. When a passive
            scan has finished, it will always go to PASSIVE_FOCUSED.
            </notes></value>
          </enum>
          <description>Current state of auto-focus (AF) algorithm.</description>
          <details>
          Switching between or enabling AF modes (android.control.afMode) always
          resets the AF state to INACTIVE. Similarly, switching between android.control.mode,
          or android.control.sceneMode if `android.control.mode == USE_SCENE_MODE` resets all
          the algorithm states to INACTIVE.

          The camera device can do several state transitions between two results, if it is
          allowed by the state transition table. For example: INACTIVE may never actually be
          seen in a result.

          The state in the result is the state for this image (in sync with this image): if
          AF state becomes FOCUSED, then the image data associated with this result should
          be sharp.

          Below are state transition tables for different AF modes.

          When android.control.afMode is AF_MODE_OFF or AF_MODE_EDOF:

            State       | Transition Cause | New State | Notes
          :------------:|:----------------:|:---------:|:-----------:
          INACTIVE      |                  | INACTIVE  | Never changes

          When android.control.afMode is AF_MODE_AUTO or AF_MODE_MACRO:

            State            | Transition Cause | New State          | Notes
          :-----------------:|:----------------:|:------------------:|:--------------:
          INACTIVE           | AF_TRIGGER       | ACTIVE_SCAN        | Start AF sweep, Lens now moving
          ACTIVE_SCAN        | AF sweep done    | FOCUSED_LOCKED     | Focused, Lens now locked
          ACTIVE_SCAN        | AF sweep done    | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
          ACTIVE_SCAN        | AF_CANCEL        | INACTIVE           | Cancel/reset AF, Lens now locked
          FOCUSED_LOCKED     | AF_CANCEL        | INACTIVE           | Cancel/reset AF
          FOCUSED_LOCKED     | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
          NOT_FOCUSED_LOCKED | AF_CANCEL        | INACTIVE           | Cancel/reset AF
          NOT_FOCUSED_LOCKED | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
          Any state          | Mode change      | INACTIVE           |

          For the above table, the camera device may skip reporting any state changes that happen
          without application intervention (i.e. mode switch, trigger, locking). Any state that
          can be skipped in that manner is called a transient state.

          For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
          state transitions listed in above table, it is also legal for the camera device to skip
          one or more transient states between two results. See below table for examples:

            State            | Transition Cause | New State          | Notes
          :-----------------:|:----------------:|:------------------:|:--------------:
          INACTIVE           | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
          INACTIVE           | AF_TRIGGER       | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
          FOCUSED_LOCKED     | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
          NOT_FOCUSED_LOCKED | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is good after a scan, lens is not locked.


          When android.control.afMode is AF_MODE_CONTINUOUS_VIDEO:

            State            | Transition Cause                    | New State          | Notes
          :-----------------:|:-----------------------------------:|:------------------:|:--------------:
          INACTIVE           | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
          INACTIVE           | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
          PASSIVE_SCAN       | Camera device completes current scan| PASSIVE_FOCUSED    | End AF scan, Lens now locked
          PASSIVE_SCAN       | Camera device fails current scan    | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
          PASSIVE_SCAN       | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, if focus is good. Lens now locked
          PASSIVE_SCAN       | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
          PASSIVE_SCAN       | AF_CANCEL                           | INACTIVE           | Reset lens position, Lens now locked
          PASSIVE_FOCUSED    | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
          PASSIVE_UNFOCUSED  | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
          PASSIVE_FOCUSED    | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, lens now locked
          PASSIVE_UNFOCUSED  | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
          FOCUSED_LOCKED     | AF_TRIGGER                          | FOCUSED_LOCKED     | No effect
          FOCUSED_LOCKED     | AF_CANCEL                           | INACTIVE           | Restart AF scan
          NOT_FOCUSED_LOCKED | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | No effect
          NOT_FOCUSED_LOCKED | AF_CANCEL                           | INACTIVE           | Restart AF scan

          When android.control.afMode is AF_MODE_CONTINUOUS_PICTURE:

            State            | Transition Cause                     | New State          | Notes
          :-----------------:|:------------------------------------:|:------------------:|:--------------:
          INACTIVE           | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
          INACTIVE           | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
          PASSIVE_SCAN       | Camera device completes current scan | PASSIVE_FOCUSED    | End AF scan, Lens now locked
          PASSIVE_SCAN       | Camera device fails current scan     | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
          PASSIVE_SCAN       | AF_TRIGGER                           | FOCUSED_LOCKED     | Eventual transition once the focus is good. Lens now locked
          PASSIVE_SCAN       | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
          PASSIVE_SCAN       | AF_CANCEL                            | INACTIVE           | Reset lens position, Lens now locked
          PASSIVE_FOCUSED    | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
          PASSIVE_UNFOCUSED  | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
          PASSIVE_FOCUSED    | AF_TRIGGER                           | FOCUSED_LOCKED     | Immediate trans. Lens now locked
          PASSIVE_UNFOCUSED  | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
          FOCUSED_LOCKED     | AF_TRIGGER                           | FOCUSED_LOCKED     | No effect
          FOCUSED_LOCKED     | AF_CANCEL                            | INACTIVE           | Restart AF scan
          NOT_FOCUSED_LOCKED | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | No effect
          NOT_FOCUSED_LOCKED | AF_CANCEL                            | INACTIVE           | Restart AF scan

          When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
          (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
          camera device. When a trigger is included in a mode switch request, the trigger
          will be evaluated in the context of the new mode in the request.
          See below table for examples:

            State      | Transition Cause                       | New State                                | Notes
          :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
          any state    | CAF-->AUTO mode switch                 | INACTIVE                                 | Mode switch without trigger, initial state must be INACTIVE
          any state    | CAF-->AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE   | Mode switch with trigger, INACTIVE is skipped
          any state    | AUTO-->CAF mode switch                 | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped
          </details>
        </entry>
        <entry name="afTriggerId" type="int32" visibility="system" deprecated="true">
          <description>The ID sent with the latest
          CAMERA2_TRIGGER_AUTOFOCUS call</description>
          <details>Must be 0 if no CAMERA2_TRIGGER_AUTOFOCUS trigger
          received yet by HAL. Always updated even if AF algorithm
          ignores the trigger</details>
        </entry>
        <clone entry="android.control.awbLock" kind="controls">
        </clone>
        <clone entry="android.control.awbMode" kind="controls">
        </clone>
        <clone entry="android.control.awbRegions" kind="controls">
        </clone>
        <clone entry="android.control.captureIntent" kind="controls">
        </clone>
        <entry name="awbState" type="byte" visibility="public" enum="true"
               hwlevel="limited">
          <enum>
            <value>INACTIVE
            <notes>AWB is not in auto mode, or has not yet started metering.

            When a camera device is opened, it starts in this
            state. This is a transient state, the camera device may
            skip reporting this state in capture
            result.</notes></value>
            <value>SEARCHING
            <notes>AWB doesn't yet have a good set of control
            values for the current scene.

            This is a transient state, the camera device
            may skip reporting this state in capture result.</notes></value>
            <value>CONVERGED
            <notes>AWB has a good set of control values for the
            current scene.</notes></value>
            <value>LOCKED
            <notes>AWB has been locked.
            </notes></value>
          </enum>
          <description>Current state of auto-white balance (AWB) algorithm.</description>
          <details>Switching between or enabling AWB modes (android.control.awbMode) always
          resets the AWB state to INACTIVE. Similarly, switching between android.control.mode,
          or android.control.sceneMode if `android.control.mode == USE_SCENE_MODE` resets all
          the algorithm states to INACTIVE.

          The camera device can do several state transitions between two results, if it is
          allowed by the state transition table. So INACTIVE may never actually be seen in
          a result.

          The state in the result is the state for this image (in sync with this image): if
          AWB state becomes CONVERGED, then the image data associated with this result should
          be good to use.

          Below are state transition tables for different AWB modes.

          When `android.control.awbMode != AWB_MODE_AUTO`:

            State       | Transition Cause | New State | Notes
          :------------:|:----------------:|:---------:|:-----------------------:
          INACTIVE      |                  |INACTIVE   |Camera device auto white balance algorithm is disabled

          When android.control.awbMode is AWB_MODE_AUTO:

            State        | Transition Cause                 | New State     | Notes
          :-------------:|:--------------------------------:|:-------------:|:-----------------:
          INACTIVE       | Camera device initiates AWB scan | SEARCHING     | Values changing
          INACTIVE       | android.control.awbLock is ON    | LOCKED        | Values locked
          SEARCHING      | Camera device finishes AWB scan  | CONVERGED     | Good values, not changing
          SEARCHING      | android.control.awbLock is ON    | LOCKED        | Values locked
          CONVERGED      | Camera device initiates AWB scan | SEARCHING     | Values changing
          CONVERGED      | android.control.awbLock is ON    | LOCKED        | Values locked
          LOCKED         | android.control.awbLock is OFF   | SEARCHING     | Values not good after unlock

          For the above table, the camera device may skip reporting any state changes that happen
          without application intervention (i.e. mode switch, trigger, locking). Any state that
          can be skipped in that manner is called a transient state.

          For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
          listed in above table, it is also legal for the camera device to skip one or more
          transient states between two results. See below table for examples:

            State        | Transition Cause                 | New State     | Notes
          :-------------:|:--------------------------------:|:-------------:|:-----------------:
          INACTIVE       | Camera device finished AWB scan  | CONVERGED     | Values are already good, transient states are skipped by camera device.
          LOCKED         | android.control.awbLock is OFF   | CONVERGED     | Values good after unlock, transient states are skipped by camera device.
          </details>
        </entry>
        <clone entry="android.control.effectMode" kind="controls">
        </clone>
        <clone entry="android.control.mode" kind="controls">
        </clone>
        <clone entry="android.control.sceneMode" kind="controls">
        </clone>
        <clone entry="android.control.videoStabilizationMode" kind="controls">
        </clone>
      </dynamic>
      <static>
        <entry name="availableHighSpeedVideoConfigurations" type="int32" visibility="hidden"
               container="array" typedef="highSpeedVideoConfiguration" hwlevel="limited">
          <array>
            <size>4</size>
            <size>n</size>
          </array>
          <description>
          List of available high speed video size and fps range configurations
          supported by the camera device, in the format of (width, height, fps_min, fps_max).
          </description>
          <range>
          For each configuration, the fps_max &amp;gt;= 60fps.
          </range>
          <details>
          When HIGH_SPEED_VIDEO is supported in android.control.availableSceneModes,
          this metadata will list the supported high speed video size and fps range
          configurations. All the sizes listed in this configuration will be a subset
          of the sizes reported by StreamConfigurationMap#getOutputSizes for processed
          non-stalling formats.

          For the high speed video use case, where the application will set
          android.control.sceneMode to HIGH_SPEED_VIDEO in capture requests, the application must
          select the video size and fps range from this metadata to configure the recording and
          preview streams and setup the recording requests. For example, if the application intends
          to do high speed recording, it can select the maximum size reported by this metadata to
          configure output streams. Once the size is selected, application can filter this metadata
          by selected size and get the supported fps ranges, and use these fps ranges to setup the
          recording requests. Note that for the use case of multiple output streams, application
          must select one unique size from this metadata to use. Otherwise a request error might
          occur.

          For normal video recording use case, where some application will NOT set
          android.control.sceneMode to HIGH_SPEED_VIDEO in capture requests, the fps ranges
          reported in this metadata must not be used to setup capture requests, or it will cause
          request error.
          </details>
          <hal_details>
          All the sizes listed in this configuration will be a subset of the sizes reported by
          android.scaler.availableStreamConfigurations for processed non-stalling output formats.
          Note that for all high speed video configurations, HAL must be able to support a minimum
          of two streams, though the application might choose to configure just one stream.

          Since the HIGH_SPEED_VIDEO mode may be turned on for preview view only case, the preview
          fps is bounded by device refresh rate (e.g. 60fps). For a given resolution, it is
          recommended that this list includes some fps ranges (e.g. [30, 60]) that is suitable
          for preview only streaming case.
          </hal_details>
          <tag id="V1" />
        </entry>
      </static>
    </section>
    <section name="demosaic">
      <controls>
        <entry name="mode" type="byte" enum="true">
          <enum>
            <value>FAST
            <notes>Minimal or no slowdown of frame rate compared to
            Bayer RAW output.</notes></value>
            <value>HIGH_QUALITY
            <notes>Improved processing quality but the frame rate is slowed down
            relative to raw output.</notes></value>
          </enum>
          <description>Controls the quality of the demosaicing
          processing.</description>
          <tag id="FUTURE" />
        </entry>
      </controls>
    </section>
    <section name="edge">
      <controls>
        <entry name="mode" type="byte" visibility="public" enum="true" hwlevel="full">
          <enum>
            <value>OFF
            <notes>No edge enhancement is applied.</notes></value>
            <value>FAST
            <notes>Apply edge enhancement at a quality level that does not slow down frame rate relative to sensor
            output</notes></value>
            <value>HIGH_QUALITY
            <notes>Apply high-quality edge enhancement, at a cost of reducing output frame rate.
            </notes></value>
          </enum>
          <description>Operation mode for edge
          enhancement.</description>
          <range>android.edge.availableEdgeModes</range>
          <details>Edge enhancement improves sharpness and details in the captured image. OFF means
          no enhancement will be applied by the camera device.

          FAST/HIGH_QUALITY both mean camera device determined enhancement
          will be applied. HIGH_QUALITY mode indicates that the
          camera device will use the highest-quality enhancement algorithms,
          even if it slows down capture rate. FAST means the camera device will
          not slow down capture rate when applying edge enhancement.</details>
          <tag id="V1" />
        </entry>
        <entry name="strength" type="byte">
          <description>Control the amount of edge enhancement
          applied to the images</description>
          <units>1-10; 10 is maximum sharpening</units>
          <tag id="FUTURE" />
        </entry>
      </controls>
      <static>
        <entry name="availableEdgeModes" type="byte" visibility="public"
               type_notes="list of enums" container="array" typedef="enumList"
               hwlevel="full">
          <array>
            <size>n</size>
          </array>
          <description>
          List of edge enhancement modes for android.edge.mode that are supported by this camera
          device.
          </description>
          <range>Any value listed in android.edge.mode</range>
          <details>
          Full-capability camera devices must always support OFF; all devices will list FAST.
          </details>
          <tag id="V1" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.edge.mode" kind="controls">
          <tag id="V1" />
        </clone>
      </dynamic>
    </section>
    <section name="flash">
      <controls>
        <entry name="firingPower" type="byte">
          <description>Power for flash firing/torch</description>
          <units>10 is max power; 0 is no flash. Linear</units>
          <range>0 - 10</range>
          <details>Power for snapshot may use a different scale than
          for torch mode. Only one entry for torch mode will be
          used</details>
          <tag id="FUTURE" />
        </entry>
        <entry name="firingTime" type="int64">
          <description>Firing time of flash relative to start of
          exposure</description>
          <units>nanoseconds</units>
          <range>0-(exposure time-flash duration)</range>
          <details>Clamped to (0, exposure time - flash
          duration).</details>
          <tag id="FUTURE" />
        </entry>
        <entry name="mode" type="byte" visibility="public" enum="true" hwlevel="legacy">
          <enum>
            <value>OFF
              <notes>
              Do not fire the flash for this capture.
              </notes>
            </value>
            <value>SINGLE
              <notes>
              If the flash is available and charged, fire flash
              for this capture.
              </notes>
            </value>
            <value>TORCH
              <notes>
              Transition flash to continuously on.
              </notes>
            </value>
          </enum>
          <description>The desired mode for for the camera device's flash control.</description>
          <details>
          This control is only effective when flash unit is available
          (`android.flash.info.available == true`).

          When this control is used, the android.control.aeMode must be set to ON or OFF.
          Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
          ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.

          When set to OFF, the camera device will not fire flash for this capture.

          When set to SINGLE, the camera device will fire flash regardless of the camera
          device's auto-exposure routine's result. When used in still capture case, this
          control should be used along with auto-exposure (AE) precapture metering sequence
          (android.control.aePrecaptureTrigger), otherwise, the image may be incorrectly exposed.

          When set to TORCH, the flash will be on continuously. This mode can be used
          for use cases such as preview, auto-focus assist, still capture, or video recording.

          The flash status will be reported by android.flash.state in the capture result metadata.
          </details>
          <tag id="BC" />
        </entry>
      </controls>
      <static>
        <namespace name="info">
          <entry name="available" type="byte" visibility="public" enum="true"
                 typedef="boolean" hwlevel="legacy">
            <enum>
              <value>FALSE</value>
              <value>TRUE</value>
            </enum>
            <description>Whether this camera device has a
            flash unit.</description>
            <details>
            Will be `false` if no flash is available.

            If there is no flash unit, none of the flash controls do
            anything.</details>
            <tag id="BC" />
          </entry>
          <entry name="chargeDuration" type="int64">
            <description>Time taken before flash can fire
            again</description>
            <units>nanoseconds</units>
            <range>0-1e9</range>
            <details>1 second too long/too short for recharge? Should
            this be power-dependent?</details>
            <tag id="FUTURE" />
          </entry>
        </namespace>
        <entry name="colorTemperature" type="byte">
          <description>The x,y whitepoint of the
          flash</description>
          <units>pair of floats</units>
          <range>0-1 for both</range>
          <tag id="FUTURE" />
        </entry>
        <entry name="maxEnergy" type="byte">
          <description>Max energy output of the flash for a full
          power single flash</description>
          <units>lumen-seconds</units>
          <range>&amp;gt;= 0</range>
          <tag id="FUTURE" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.flash.firingPower" kind="controls">
        </clone>
        <clone entry="android.flash.firingTime" kind="controls">
        </clone>
        <clone entry="android.flash.mode" kind="controls"></clone>
        <entry name="state" type="byte" visibility="public" enum="true"
               hwlevel="limited">
          <enum>
            <value>UNAVAILABLE
            <notes>No flash on camera.</notes></value>
            <value>CHARGING
            <notes>Flash is charging and cannot be fired.</notes></value>
            <value>READY
            <notes>Flash is ready to fire.</notes></value>
            <value>FIRED
            <notes>Flash fired for this capture.</notes></value>
            <value>PARTIAL
            <notes>Flash partially illuminated this frame.

            This is usually due to the next or previous frame having
            the flash fire, and the flash spilling into this capture
            due to hardware limitations.</notes></value>
          </enum>
          <description>Current state of the flash
          unit.</description>
          <details>
          When the camera device doesn't have flash unit
          (i.e. `android.flash.info.available == false`), this state will always be UNAVAILABLE.
          Other states indicate the current flash status.

          In certain conditions, this will be available on LEGACY devices:

           * Flash-less cameras always return UNAVAILABLE.
           * Using android.control.aeMode `==` ON_ALWAYS_FLASH
             will always return FIRED.
           * Using android.flash.mode `==` TORCH
             will always return FIRED.

          In all other conditions the state will not be available on
          LEGACY devices (i.e. it will be `null`).
          </details>
        </entry>
      </dynamic>
    </section>
    <section name="hotPixel">
      <controls>
        <entry name="mode" type="byte" visibility="public" enum="true">
          <enum>
            <value>OFF
              <notes>
              No hot pixel correction is applied.

              The frame rate must not be reduced relative to sensor raw output
              for this option.

              The hotpixel map may be returned in android.statistics.hotPixelMap.
              </notes>
            </value>
            <value>FAST
              <notes>
              Hot pixel correction is applied, without reducing frame
              rate relative to sensor raw output.

              The hotpixel map may be returned in android.statistics.hotPixelMap.
              </notes>
            </value>
            <value>HIGH_QUALITY
              <notes>
              High-quality hot pixel correction is applied, at a cost
              of reducing frame rate relative to sensor raw output.

              The hotpixel map may be returned in android.statistics.hotPixelMap.
              </notes>
            </value>
          </enum>
          <description>
          Operational mode for hot pixel correction.
          </description>
          <range>android.hotPixel.availableHotPixelModes</range>
          <details>
          Hotpixel correction interpolates out, or otherwise removes, pixels
          that do not accurately measure the incoming light (i.e. pixels that
          are stuck at an arbitrary value or are oversensitive).
          </details>
          <tag id="V1" />
          <tag id="RAW" />
        </entry>
      </controls>
      <static>
        <entry name="availableHotPixelModes" type="byte" visibility="public"
          type_notes="list of enums" container="array" typedef="enumList">
          <array>
            <size>n</size>
          </array>
          <description>
          List of hot pixel correction modes for android.hotPixel.mode that are supported by this
          camera device.
          </description>
          <range>Any value listed in android.hotPixel.mode</range>
          <details>
          FULL mode camera devices will always support FAST.
          </details>
          <hal_details>
          To avoid performance issues, there will be significantly fewer hot
          pixels than actual pixels on the camera sensor.
          </hal_details>
          <tag id="V1" />
          <tag id="RAW" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.hotPixel.mode" kind="controls">
          <tag id="V1" />
          <tag id="RAW" />
        </clone>
      </dynamic>
    </section>
    <section name="jpeg">
      <controls>
        <entry name="gpsLocation" type="byte" visibility="public" synthetic="true"
        typedef="location" hwlevel="legacy">
          <description>
          A location object to use when generating image GPS metadata.
          </description>
          <details>
          Setting a location object in a request will include the GPS coordinates of the location
          into any JPEG images captured based on the request. These coordinates can then be
          viewed by anyone who receives the JPEG image.
          </details>
        </entry>
        <entry name="gpsCoordinates" type="double" visibility="hidden"
        type_notes="latitude, longitude, altitude. First two in degrees, the third in meters"
        container="array" hwlevel="legacy">
          <array>
            <size>3</size>
          </array>
          <description>GPS coordinates to include in output JPEG
          EXIF.</description>
          <range>(-180 - 180], [-90,90], [-inf, inf]</range>
          <tag id="BC" />
        </entry>
        <entry name="gpsProcessingMethod" type="byte" visibility="hidden"
               typedef="string" hwlevel="legacy">
          <description>32 characters describing GPS algorithm to
          include in EXIF.</description>
          <units>UTF-8 null-terminated string</units>
          <tag id="BC" />
        </entry>
        <entry name="gpsTimestamp" type="int64" visibility="hidden" hwlevel="legacy">
          <description>Time GPS fix was made to include in
          EXIF.</description>
          <units>UTC in seconds since January 1, 1970</units>
          <tag id="BC" />
        </entry>
        <entry name="orientation" type="int32" visibility="public" hwlevel="legacy">
          <description>The orientation for a JPEG image.</description>
          <units>Degrees in multiples of 90</units>
          <range>0, 90, 180, 270</range>
          <details>
          The clockwise rotation angle in degrees, relative to the orientation
          to the camera, that the JPEG picture needs to be rotated by, to be viewed
          upright.

          Camera devices may either encode this value into the JPEG EXIF header, or
          rotate the image data to match this orientation.

          Note that this orientation is relative to the orientation of the camera sensor, given
          by android.sensor.orientation.

          To translate from the device orientation given by the Android sensor APIs, the following
          sample code may be used:

              private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
                  if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
                  int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);

                  // Round device orientation to a multiple of 90
                  deviceOrientation = (deviceOrientation + 45) / 90 * 90;

                  // Reverse device orientation for front-facing cameras
                  boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
                  if (facingFront) deviceOrientation = -deviceOrientation;

                  // Calculate desired JPEG orientation relative to camera orientation to make
                  // the image upright relative to the device orientation
                  int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;

                  return jpegOrientation;
              }
          </details>
          <tag id="BC" />
        </entry>
        <entry name="quality" type="byte" visibility="public" hwlevel="legacy">
          <description>Compression quality of the final JPEG
          image.</description>
          <range>1-100; larger is higher quality</range>
          <details>85-95 is typical usage range.</details>
          <tag id="BC" />
        </entry>
        <entry name="thumbnailQuality" type="byte" visibility="public" hwlevel="legacy">
          <description>Compression quality of JPEG
          thumbnail.</description>
          <range>1-100; larger is higher quality</range>
          <tag id="BC" />
        </entry>
        <entry name="thumbnailSize" type="int32" visibility="public"
        container="array" typedef="size" hwlevel="legacy">
          <array>
            <size>2</size>
          </array>
          <description>Resolution of embedded JPEG thumbnail.</description>
          <range>android.jpeg.availableThumbnailSizes</range>
          <details>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
          but the captured JPEG will still be a valid image.

          For best results, when issuing a request for a JPEG image, the thumbnail size selected
          should have the same aspect ratio as the main JPEG output.

          If the thumbnail image aspect ratio differs from the JPEG primary image aspect
          ratio, the camera device creates the thumbnail by cropping it from the primary image.
          For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
          16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
          generate the thumbnail image. The thumbnail image will always have a smaller Field
          Of View (FOV) than the primary image when aspect ratios differ.
          </details>
          <hal_details>
          The HAL must not squeeze or stretch the downscaled primary image to generate thumbnail.
          The cropping must be done on the primary jpeg image rather than the sensor active array.
          The stream cropping rule specified by "S5. Cropping" in camera3.h doesn't apply to the
          thumbnail image cropping.
          </hal_details>
          <tag id="BC" />
        </entry>
      </controls>
      <static>
        <entry name="availableThumbnailSizes" type="int32" visibility="public"
        container="array" typedef="size" hwlevel="legacy">
          <array>
            <size>2</size>
            <size>n</size>
          </array>
          <description>List of JPEG thumbnail sizes for android.jpeg.thumbnailSize supported by this
          camera device.</description>
          <details>
          This list will include at least one non-zero resolution, plus `(0,0)` for indicating no
          thumbnail should be generated.

          Below condiditions will be satisfied for this size list:

          * The sizes will be sorted by increasing pixel area (width x height).
          If several resolutions have the same area, they will be sorted by increasing width.
          * The aspect ratio of the largest thumbnail size will be same as the
          aspect ratio of largest JPEG output size in android.scaler.availableStreamConfigurations.
          The largest size is defined as the size that has the largest pixel area
          in a given size list.
          * Each output JPEG size in android.scaler.availableStreamConfigurations will have at least
          one corresponding size that has the same aspect ratio in availableThumbnailSizes,
          and vice versa.
          * All non-`(0, 0)` sizes will have non-zero widths and heights.</details>
          <tag id="BC" />
        </entry>
        <entry name="maxSize" type="int32" visibility="system">
          <description>Maximum size in bytes for the compressed
          JPEG buffer</description>
          <range>Must be large enough to fit any JPEG produced by
          the camera</range>
          <details>This is used for sizing the gralloc buffers for
          JPEG</details>
        </entry>
      </static>
      <dynamic>
        <clone entry="android.jpeg.gpsLocation" kind="controls">
        </clone>
        <clone entry="android.jpeg.gpsCoordinates" kind="controls">
        </clone>
        <clone entry="android.jpeg.gpsProcessingMethod"
        kind="controls"></clone>
        <clone entry="android.jpeg.gpsTimestamp" kind="controls">
        </clone>
        <clone entry="android.jpeg.orientation" kind="controls">
        </clone>
        <clone entry="android.jpeg.quality" kind="controls">
        </clone>
        <entry name="size" type="int32">
          <description>The size of the compressed JPEG image, in
          bytes</description>
          <range>&amp;gt;= 0</range>
          <details>If no JPEG output is produced for the request,
          this must be 0.

          Otherwise, this describes the real size of the compressed
          JPEG image placed in the output stream.  More specifically,
          if android.jpeg.maxSize = 1000000, and a specific capture
          has android.jpeg.size = 500000, then the output buffer from
          the JPEG stream will be 1000000 bytes, of which the first
          500000 make up the real data.</details>
          <tag id="FUTURE" />
        </entry>
        <clone entry="android.jpeg.thumbnailQuality"
        kind="controls"></clone>
        <clone entry="android.jpeg.thumbnailSize" kind="controls">
        </clone>
      </dynamic>
    </section>
    <section name="lens">
      <controls>
        <entry name="aperture" type="float" visibility="public" hwlevel="full">
          <description>The desired lens aperture size, as a ratio of lens focal length to the
          effective aperture diameter.</description>
          <units>The f-number (f/N)</units>
          <range>android.lens.info.availableApertures</range>
          <details>Setting this value is only supported on the camera devices that have a variable
          aperture lens.

          When this is supported and android.control.aeMode is OFF,
          this can be set along with android.sensor.exposureTime,
          android.sensor.sensitivity, and android.sensor.frameDuration
          to achieve manual exposure control.

          The requested aperture value may take several frames to reach the
          requested value; the camera device will report the current (intermediate)
          aperture size in capture result metadata while the aperture is changing.
          While the aperture is still changing, android.lens.state will be set to MOVING.

          When this is supported and android.control.aeMode is one of
          the ON modes, this will be overridden by the camera device
          auto-exposure algorithm, the overridden values are then provided
          back to the user in the corresponding result.</details>
          <tag id="V1" />
        </entry>
        <entry name="filterDensity" type="float" visibility="public" hwlevel="full">
          <description>
          The desired setting for the lens neutral density filter(s).
          </description>
          <units>Exposure Value (EV)</units>
          <range>android.lens.info.availableFilterDensities</range>
          <details>
          This control will not be supported on most camera devices.

          Lens filters are typically used to lower the amount of light the
          sensor is exposed to (measured in steps of EV). As used here, an EV
          step is the standard logarithmic representation, which are
          non-negative, and inversely proportional to the amount of light
          hitting the sensor.  For example, setting this to 0 would result
          in no reduction of the incoming light, and setting this to 2 would
          mean that the filter is set to reduce incoming light by two stops
          (allowing 1/4 of the prior amount of light to the sensor).

          It may take several frames before the lens filter density changes
          to the requested value. While the filter density is still changing,
          android.lens.state will be set to MOVING.
          </details>
          <tag id="V1" />
        </entry>
        <entry name="focalLength" type="float" visibility="public" hwlevel="legacy">
          <description>
          The desired lens focal length; used for optical zoom.
          </description>
          <units>Millimeters</units>
          <range>android.lens.info.availableFocalLengths</range>
          <details>
          This setting controls the physical focal length of the camera
          device's lens. Changing the focal length changes the field of
          view of the camera device, and is usually used for optical zoom.

          Like android.lens.focusDistance and android.lens.aperture, this
          setting won't be applied instantaneously, and it may take several
          frames before the lens can change to the requested focal length.
          While the focal length is still changing, android.lens.state will
          be set to MOVING.

          Optical zoom will not be supported on most devices.
          </details>
          <tag id="V1" />
        </entry>
        <entry name="focusDistance" type="float" visibility="public" hwlevel="full">
          <description>Desired distance to plane of sharpest focus,
          measured from frontmost surface of the lens.</description>
          <units>See android.lens.info.focusDistanceCalibration for details</units>
          <range>&amp;gt;= 0</range>
          <details>
          This control can be used for setting manual focus, on devices that support
          the MANUAL_SENSOR capability and have a variable-focus lens (see
          android.lens.info.minimumFocusDistance).

          A value of `0.0f` means infinity focus. The value set will be clamped to
          `[0.0f, android.lens.info.minimumFocusDistance]`.

          Like android.lens.focalLength, this setting won't be applied
          instantaneously, and it may take several frames before the lens
          can move to the requested focus distance. While the lens is still moving,
          android.lens.state will be set to MOVING.

          LEGACY devices support at most setting this to `0.0f`
          for infinity focus.
          </details>
          <tag id="BC" />
          <tag id="V1" />
        </entry>
        <entry name="opticalStabilizationMode" type="byte" visibility="public"
        enum="true" hwlevel="limited">
          <enum>
            <value>OFF
              <notes>Optical stabilization is unavailable.</notes>
            </value>
            <value optional="true">ON
              <notes>Optical stabilization is enabled.</notes>
            </value>
          </enum>
          <description>
          Sets whether the camera device uses optical image stabilization (OIS)
          when capturing images.
          </description>
          <range>android.lens.info.availableOpticalStabilization</range>
          <details>
          OIS is used to compensate for motion blur due to small
          movements of the camera during capture. Unlike digital image
          stabilization (android.control.videoStabilizationMode), OIS
          makes use of mechanical elements to stabilize the camera
          sensor, and thus allows for longer exposure times before
          camera shake becomes apparent.

          Switching between different optical stabilization modes may take several
          frames to initialize, the camera device will report the current mode in
          capture result metadata. For example, When "ON" mode is requested, the
          optical stabilization modes in the first several capture results may still
          be "OFF", and it will become "ON" when the initialization is done.

          If a camera device supports both OIS and digital image stabilization
          (android.control.videoStabilizationMode), turning both modes on may produce undesirable
          interaction, so it is recommended not to enable both at the same time.

          Not all devices will support OIS; see
          android.lens.info.availableOpticalStabilization for
          available controls.
          </details>
          <tag id="V1" />
        </entry>
      </controls>
      <static>
        <namespace name="info">
          <entry name="availableApertures" type="float" visibility="public"
          container="array" hwlevel="full">
            <array>
              <size>n</size>
            </array>
            <description>List of aperture size values for android.lens.aperture that are
            supported by this camera device.</description>
            <units>The aperture f-number</units>
            <details>If the camera device doesn't support a variable lens aperture,
            this list will contain only one value, which is the fixed aperture size.

            If the camera device supports a variable aperture, the aperture values
            in this list will be sorted in ascending order.</details>
            <tag id="V1" />
          </entry>
          <entry name="availableFilterDensities" type="float" visibility="public"
          container="array" hwlevel="full">
            <array>
              <size>n</size>
            </array>
            <description>
            List of neutral density filter values for
            android.lens.filterDensity that are supported by this camera device.
            </description>
            <units>Exposure value (EV)</units>
            <range>
            Values are &amp;gt;= 0
            </range>
            <details>
            If a neutral density filter is not supported by this camera device,
            this list will contain only 0. Otherwise, this list will include every
            filter density supported by the camera device, in ascending order.
            </details>
            <tag id="V1" />
          </entry>
          <entry name="availableFocalLengths" type="float" visibility="public"
          type_notes="The list of available focal lengths"
          container="array" hwlevel="legacy">
            <array>
              <size>n</size>
            </array>
            <description>
            List of focal lengths for android.lens.focalLength that are supported by this camera
            device.
            </description>
            <units>Millimeters</units>
            <range>
            Values are &amp;gt; 0
            </range>
            <details>
            If optical zoom is not supported, this list will only contain
            a single value corresponding to the fixed focal length of the
            device. Otherwise, this list will include every focal length supported
            by the camera device, in ascending order.
            </details>
            <tag id="BC" />
            <tag id="V1" />
          </entry>
          <entry name="availableOpticalStabilization" type="byte"
          visibility="public" type_notes="list of enums" container="array"
          typedef="enumList" hwlevel="limited">
            <array>
              <size>n</size>
            </array>
            <description>
            List of optical image stabilization (OIS) modes for
            android.lens.opticalStabilizationMode that are supported by this camera device.
            </description>
            <range>Any value listed in android.lens.opticalStabilizationMode</range>
            <details>
            If OIS is not supported by a given camera device, this list will
            contain only OFF.
            </details>
            <tag id="V1" />
          </entry>
          <entry name="hyperfocalDistance" type="float" visibility="public" optional="true"
                 hwlevel="limited">
            <description>Hyperfocal distance for this lens.</description>
            <units>See android.lens.info.focusDistanceCalibration for details</units>
            <range>If lens is fixed focus, &amp;gt;= 0. If lens has focuser unit, the value is
            within `(0.0f, android.lens.info.minimumFocusDistance]`</range>
            <details>
            If the lens is not fixed focus, the camera device will report this
            field when android.lens.info.focusDistanceCalibration is APPROXIMATE or CALIBRATED.
            </details>
          </entry>
          <entry name="minimumFocusDistance" type="float" visibility="public" optional="true"
                 hwlevel="limited">
            <description>Shortest distance from frontmost surface
            of the lens that can be brought into sharp focus.</description>
            <units>See android.lens.info.focusDistanceCalibration for details</units>
            <range>&amp;gt;= 0</range>
            <details>If the lens is fixed-focus, this will be
            0.</details>
            <hal_details>Mandatory for FULL devices; LIMITED devices
            must always set this value to 0 for fixed-focus; and may omit
            the minimum focus distance otherwise.

            This field is also mandatory for all devices advertising
            the MANUAL_SENSOR capability.</hal_details>
            <tag id="V1" />
          </entry>
          <entry name="shadingMapSize" type="int32" visibility="hidden"
                 type_notes="width and height (N, M) of lens shading map provided by the camera device."
                 container="array" typedef="size" hwlevel="full">
            <array>
              <size>2</size>
            </array>
            <description>Dimensions of lens shading map.</description>
            <range>Both values &amp;gt;= 1</range>
            <details>
            The map should be on the order of 30-40 rows and columns, and
            must be smaller than 64x64.
            </details>
            <tag id="V1" />
          </entry>
          <entry name="focusDistanceCalibration" type="byte" visibility="public"
                 enum="true" hwlevel="limited">
            <enum>
              <value>UNCALIBRATED
                <notes>
                The lens focus distance is not accurate, and the units used for
                android.lens.focusDistance do not correspond to any physical units.

                Setting the lens to the same focus distance on separate occasions may
                result in a different real focus distance, depending on factors such
                as the orientation of the device, the age of the focusing mechanism,
                and the device temperature. The focus distance value will still be
                in the range of `[0, android.lens.info.minimumFocusDistance]`, where 0
                represents the farthest focus.
                </notes>
              </value>
              <value>APPROXIMATE
                <notes>
                The lens focus distance is measured in diopters.

                However, setting the lens to the same focus distance
                on separate occasions may result in a different real
                focus distance, depending on factors such as the
                orientation of the device, the age of the focusing
                mechanism, and the device temperature.
                </notes>
              </value>
              <value>CALIBRATED
                <notes>
                The lens focus distance is measured in diopters, and
                is calibrated.

                The lens mechanism is calibrated so that setting the
                same focus distance is repeatable on multiple
                occasions with good accuracy, and the focus distance
                corresponds to the real physical distance to the plane
                of best focus.
                </notes>
              </value>
            </enum>
            <description>The lens focus distance calibration quality.</description>
            <details>
            The lens focus distance calibration quality determines the reliability of
            focus related metadata entries, i.e. android.lens.focusDistance,
            android.lens.focusRange, android.lens.info.hyperfocalDistance, and
            android.lens.info.minimumFocusDistance.

            APPROXIMATE and CALIBRATED devices report the focus metadata in
            units of diopters (1/meter), so `0.0f` represents focusing at infinity,
            and increasing positive numbers represent focusing closer and closer
            to the camera device. The focus distance control also uses diopters
            on these devices.

            UNCALIBRATED devices do not use units that are directly comparable
            to any real physical measurement, but `0.0f` still represents farthest
            focus, and android.lens.info.minimumFocusDistance represents the
            nearest focus the device can achieve.
            </details>
            <hal_details>
            For devices advertise APPROXIMATE quality or higher, diopters 0 (infinity
            focus) must work. When autofocus is disabled (android.control.afMode == OFF)
            and the lens focus distance is set to 0 diopters
            (android.lens.focusDistance == 0), the lens will move to focus at infinity
            and is stably focused at infinity even if the device tilts. It may take the
            lens some time to move; during the move the lens state should be MOVING and
            the output diopter value should be changing toward 0.
            </hal_details>
          <tag id="V1" />
        </entry>
        </namespace>
        <entry name="facing" type="byte" visibility="public" enum="true" hwlevel="legacy">
          <enum>
            <value>FRONT
            <notes>
              The camera device faces the same direction as the device's screen.
            </notes></value>
            <value>BACK
            <notes>
              The camera device faces the opposite direction as the device's screen.
            </notes></value>
          </enum>
          <description>Direction the camera faces relative to
          device screen.</description>
        </entry>
        <entry name="opticalAxisAngle" type="float"
        type_notes="degrees. First defines the angle of separation between the perpendicular to the screen and the camera optical axis. The second then defines the clockwise rotation of the optical axis from native device up."
        container="array">
          <array>
            <size>2</size>
          </array>
          <description>Relative angle of camera optical axis to the
          perpendicular axis from the display</description>
          <range>[0-90) for first angle, [0-360) for second</range>
          <details>Examples:

          (0,0) means that the camera optical axis
          is perpendicular to the display surface;

          (45,0) means that the camera points 45 degrees up when
          device is held upright;

          (45,90) means the camera points 45 degrees to the right when
          the device is held upright.

          Use FACING field to determine perpendicular outgoing
          direction</details>
          <tag id="FUTURE" />
        </entry>
        <entry name="position" type="float" container="array">
          <array>
            <size>3, location in mm, in the sensor coordinate
            system</size>
          </array>
          <description>Coordinates of camera optical axis on
          device</description>
          <tag id="FUTURE" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.lens.aperture" kind="controls">
          <tag id="V1" />
        </clone>
        <clone entry="android.lens.filterDensity" kind="controls">
          <tag id="V1" />
        </clone>
        <clone entry="android.lens.focalLength" kind="controls">
          <tag id="BC" />
        </clone>
        <clone entry="android.lens.focusDistance" kind="controls">
          <details>Should be zero for fixed-focus cameras</details>
          <tag id="BC" />
        </clone>
        <entry name="focusRange" type="float" visibility="public"
        type_notes="Range of scene distances that are in focus"
        container="array" typedef="pairFloatFloat" hwlevel="limited">
          <array>
            <size>2</size>
          </array>
          <description>The range of scene distances that are in
          sharp focus (depth of field).</description>
          <units>A pair of focus distances in diopters: (near,
          far); see android.lens.info.focusDistanceCalibration for details.</units>
          <range>&amp;gt;=0</range>
          <details>If variable focus not supported, can still report
          fixed depth of field range</details>
          <tag id="BC" />
        </entry>
        <clone entry="android.lens.opticalStabilizationMode"
        kind="controls">
          <tag id="V1" />
        </clone>
        <entry name="state" type="byte" visibility="public" enum="true" hwlevel="limited">
          <enum>
            <value>STATIONARY
              <notes>
              The lens parameters (android.lens.focalLength, android.lens.focusDistance,
              android.lens.filterDensity and android.lens.aperture) are not changing.
              </notes>
            </value>
            <value>MOVING
              <notes>
              One or several of the lens parameters
              (android.lens.focalLength, android.lens.focusDistance,
              android.lens.filterDensity or android.lens.aperture) is
              currently changing.
              </notes>
            </value>
          </enum>
          <description>Current lens status.</description>
          <details>
          For lens parameters android.lens.focalLength, android.lens.focusDistance,
          android.lens.filterDensity and android.lens.aperture, when changes are requested,
          they may take several frames to reach the requested values. This state indicates
          the current status of the lens parameters.

          When the state is STATIONARY, the lens parameters are not changing. This could be
          either because the parameters are all fixed, or because the lens has had enough
          time to reach the most recently-requested values.
          If all these lens parameters are not changable for a camera device, as listed below:

          * Fixed focus (`android.lens.info.minimumFocusDistance == 0`), which means
          android.lens.focusDistance parameter will always be 0.
          * Fixed focal length (android.lens.info.availableFocalLengths contains single value),
          which means the optical zoom is not supported.
          * No ND filter (android.lens.info.availableFilterDensities contains only 0).
          * Fixed aperture (android.lens.info.availableApertures contains single value).

          Then this state will always be STATIONARY.

          When the state is MOVING, it indicates that at least one of the lens parameters
          is changing.
          </details>
          <tag id="V1" />
        </entry>
      </dynamic>
    </section>
    <section name="noiseReduction">
      <controls>
        <entry name="mode" type="byte" visibility="public" enum="true" hwlevel="full">
          <enum>
            <value>OFF
            <notes>No noise reduction is applied.</notes></value>
            <value>FAST
            <notes>Noise reduction is applied without reducing frame rate relative to sensor
            output.</notes></value>
            <value>HIGH_QUALITY
            <notes>High-quality noise reduction is applied, at the cost of reducing frame rate
            relative to sensor output.</notes></value>
          </enum>
          <description>Mode of operation for the noise reduction algorithm.</description>
          <range>android.noiseReduction.availableNoiseReductionModes</range>
          <details>The noise reduction algorithm attempts to improve image quality by removing
          excessive noise added by the capture process, especially in dark conditions.
          OFF means no noise reduction will be applied by the camera device.

          FAST/HIGH_QUALITY both mean camera device determined noise filtering
          will be applied. HIGH_QUALITY mode indicates that the camera device
          will use the highest-quality noise filtering algorithms,
          even if it slows down capture rate. FAST means the camera device will not
          slow down capture rate when applying noise filtering.
          </details>
          <tag id="V1" />
        </entry>
        <entry name="strength" type="byte">
          <description>Control the amount of noise reduction
          applied to the images</description>
          <units>1-10; 10 is max noise reduction</units>
          <range>1 - 10</range>
          <tag id="FUTURE" />
        </entry>
      </controls>
      <static>
        <entry name="availableNoiseReductionModes" type="byte" visibility="public"
        type_notes="list of enums" container="array" typedef="enumList" hwlevel="limited">
          <array>
            <size>n</size>
          </array>
          <description>
          List of noise reduction modes for android.noiseReduction.mode that are supported
          by this camera device.
          </description>
          <range>Any value listed in android.noiseReduction.mode</range>
          <details>
          Full-capability camera devices will always support OFF and FAST.

          Legacy-capability camera devices will only support FAST mode.
          </details>
          <tag id="V1" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.noiseReduction.mode" kind="controls">
          <tag id="V1" />
        </clone>
      </dynamic>
    </section>
    <section name="quirks">
      <static>
        <entry name="meteringCropRegion" type="byte" visibility="system" deprecated="true" optional="true">
          <description>If set to 1, the camera service does not
          scale 'normalized' coordinates with respect to the crop
          region. This applies to metering input (a{e,f,wb}Region
          and output (face rectangles).</description>
          <details>Normalized coordinates refer to those in the
          (-1000,1000) range mentioned in the
          android.hardware.Camera API.

          HAL implementations should instead always use and emit
          sensor array-relative coordinates for all region data. Does
          not need to be listed in static metadata. Support will be
          removed in future versions of camera service.</details>
        </entry>
        <entry name="triggerAfWithAuto" type="byte" visibility="system" deprecated="true" optional="true">
          <description>If set to 1, then the camera service always
          switches to FOCUS_MODE_AUTO before issuing a AF
          trigger.</description>
          <details>HAL implementations should implement AF trigger
          modes for AUTO, MACRO, CONTINUOUS_FOCUS, and
          CONTINUOUS_PICTURE modes instead of using this flag. Does
          not need to be listed in static metadata. Support will be
          removed in future versions of camera service</details>
        </entry>
        <entry name="useZslFormat" type="byte" visibility="system" deprecated="true" optional="true">
          <description>If set to 1, the camera service uses
          CAMERA2_PIXEL_FORMAT_ZSL instead of
          HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED for the zero
          shutter lag stream</description>
          <details>HAL implementations should use gralloc usage flags
          to determine that a stream will be used for
          zero-shutter-lag, instead of relying on an explicit
          format setting. Does not need to be listed in static
          metadata. Support will be removed in future versions of
          camera service.</details>
        </entry>
        <entry name="usePartialResult" type="byte" visibility="hidden" deprecated="true" optional="true">
          <description>
          If set to 1, the HAL will always split result
          metadata for a single capture into multiple buffers,
          returned using multiple process_capture_result calls.
          </description>
          <details>
          Does not need to be listed in static
          metadata. Support for partial results will be reworked in
          future versions of camera service. This quirk will stop
          working at that point; DO NOT USE without careful
          consideration of future support.
          </details>
          <hal_details>
          Refer to `camera3_capture_result::partial_result`
          for information on how to implement partial results.
          </hal_details>
        </entry>
      </static>
      <dynamic>
        <entry name="partialResult" type="byte" visibility="hidden" deprecated="true" optional="true" enum="true" typedef="boolean">
          <enum>
            <value>FINAL
            <notes>The last or only metadata result buffer
            for this capture.</notes>
            </value>
            <value>PARTIAL
            <notes>A partial buffer of result metadata for this
            capture. More result buffers for this capture will be sent
            by the camera device, the last of which will be marked
            FINAL.</notes>
            </value>
          </enum>
          <description>
          Whether a result given to the framework is the
          final one for the capture, or only a partial that contains a
          subset of the full set of dynamic metadata
          values.</description>
          <range>Optional. Default value is FINAL.</range>
          <details>
          The entries in the result metadata buffers for a
          single capture may not overlap, except for this entry. The
          FINAL buffers must retain FIFO ordering relative to the
          requests that generate them, so the FINAL buffer for frame 3 must
          always be sent to the framework after the FINAL buffer for frame 2, and
          before the FINAL buffer for frame 4. PARTIAL buffers may be returned
          in any order relative to other frames, but all PARTIAL buffers for a given
          capture must arrive before the FINAL buffer for that capture. This entry may
          only be used by the camera device if quirks.usePartialResult is set to 1.
          </details>
          <hal_details>
          Refer to `camera3_capture_result::partial_result`
          for information on how to implement partial results.
          </hal_details>
        </entry>
      </dynamic>
    </section>
    <section name="request">
      <controls>
        <entry name="frameCount" type="int32" visibility="system" deprecated="true">
          <description>A frame counter set by the framework. Must
          be maintained unchanged in output frame. This value monotonically
          increases with every new result (that is, each new result has a unique
          frameCount value).
          </description>
          <units>incrementing integer</units>
          <range>Any int.</range>
        </entry>
        <entry name="id" type="int32" visibility="hidden">
          <description>An application-specified ID for the current
          request. Must be maintained unchanged in output
          frame</description>
          <units>arbitrary integer assigned by application</units>
          <range>Any int</range>
          <tag id="V1" />
        </entry>
        <entry name="inputStreams" type="int32" visibility="system" deprecated="true"
               container="array">
          <array>
            <size>n</size>
          </array>
          <description>List which camera reprocess stream is used
          for the source of reprocessing data.</description>
          <units>List of camera reprocess stream IDs</units>
          <range>
          Typically, only one entry allowed, must be a valid reprocess stream ID.
          </range>
          <details>Only meaningful when android.request.type ==
          REPROCESS. Ignored otherwise</details>
          <tag id="HAL2" />
        </entry>
        <entry name="metadataMode" type="byte" visibility="system"
               enum="true">
          <enum>
            <value>NONE
            <notes>No metadata should be produced on output, except
            for application-bound buffer data. If no
            application-bound streams exist, no frame should be
            placed in the output frame queue. If such streams
            exist, a frame should be placed on the output queue
            with null metadata but with the necessary output buffer
            information. Timestamp information should still be
            included with any output stream buffers</notes></value>
            <value>FULL
            <notes>All metadata should be produced. Statistics will
            only be produced if they are separately
            enabled</notes></value>
          </enum>
          <description>How much metadata to produce on
          output</description>
          <tag id="FUTURE" />
        </entry>
        <entry name="outputStreams" type="int32" visibility="system" deprecated="true"
               container="array">
          <array>
            <size>n</size>
          </array>
          <description>Lists which camera output streams image data
          from this capture must be sent to</description>
          <units>List of camera stream IDs</units>
          <range>List must only include streams that have been
          created</range>
          <details>If no output streams are listed, then the image
          data should simply be discarded. The image data must
          still be captured for metadata and statistics production,
          and the lens and flash must operate as requested.</details>
          <tag id="HAL2" />
        </entry>
        <entry name="type" type="byte" visibility="system" deprecated="true" enum="true">
          <enum>
            <value>CAPTURE
            <notes>Capture a new image from the imaging hardware,
            and process it according to the
            settings</notes></value>
            <value>REPROCESS
            <notes>Process previously captured data; the
            android.request.inputStreams parameter determines the
            source reprocessing stream. TODO: Mark dynamic metadata
            needed for reprocessing with [RP]</notes></value>
          </enum>
          <description>The type of the request; either CAPTURE or
          REPROCESS. For HAL3, this tag is redundant.
          </description>
          <tag id="HAL2" />
        </entry>
      </controls>
      <static>
        <entry name="maxNumOutputStreams" type="int32" visibility="hidden"
        container="array" hwlevel="legacy">
          <array>
            <size>3</size>
          </array>
          <description>The maximum numbers of different types of output streams
          that can be configured and used simultaneously by a camera device.
          </description>
          <range>
          For processed (and stalling) format streams, &amp;gt;= 1.

          For Raw format (either stalling or non-stalling) streams, &amp;gt;= 0.

          For processed (but not stalling) format streams, &amp;gt;= 3
          for FULL mode devices (`android.info.supportedHardwareLevel == FULL`);
          &amp;gt;= 2 for LIMITED mode devices (`android.info.supportedHardwareLevel == LIMITED`).
          </range>
          <details>
          This is a 3 element tuple that contains the max number of output simultaneous
          streams for raw sensor, processed (but not stalling), and processed (and stalling)
          formats respectively. For example, assuming that JPEG is typically a processed and
          stalling stream, if max raw sensor format output stream number is 1, max YUV streams
          number is 3, and max JPEG stream number is 2, then this tuple should be `(1, 3, 2)`.

          This lists the upper bound of the number of output streams supported by
          the camera device. Using more streams simultaneously may require more hardware and
          CPU resources that will consume more power. The image format for an output stream can
          be any supported format provided by android.scaler.availableStreamConfigurations.
          The formats defined in android.scaler.availableStreamConfigurations can be catergorized
          into the 3 stream types as below:

          * Processed (but stalling): any non-RAW format with a stallDurations &amp;gt; 0.
          Typically JPEG format (ImageFormat#JPEG).
          * Raw formats: ImageFormat#RAW_SENSOR, ImageFormat#RAW10 and ImageFormat#RAW_OPAQUE.
          * Processed (but not-stalling): any non-RAW format without a stall duration.
          Typically ImageFormat#YUV_420_888, ImageFormat#NV21, ImageFormat#YV12.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="maxNumOutputRaw" type="int32" visibility="public" synthetic="true" hwlevel="legacy">
          <description>The maximum numbers of different types of output streams
          that can be configured and used simultaneously by a camera device
          for any `RAW` formats.
          </description>
          <range>
          &amp;gt;= 0
          </range>
          <details>
          This value contains the max number of output simultaneous
          streams from the raw sensor.

          This lists the upper bound of the number of output streams supported by
          the camera device. Using more streams simultaneously may require more hardware and
          CPU resources that will consume more power. The image format for this kind of an output stream can
          be any `RAW` and supported format provided by android.scaler.streamConfigurationMap.

          In particular, a `RAW` format is typically one of:

          * ImageFormat#RAW_SENSOR
          * ImageFormat#RAW10
          * Opaque `RAW`

          LEGACY mode devices (android.info.supportedHardwareLevel `==` LEGACY)
          never support raw streams.
          </details>
        </entry>
        <entry name="maxNumOutputProc" type="int32" visibility="public" synthetic="true" hwlevel="legacy">
          <description>The maximum numbers of different types of output streams
          that can be configured and used simultaneously by a camera device
          for any processed (but not-stalling) formats.
          </description>
          <range>
          &amp;gt;= 3
          for FULL mode devices (`android.info.supportedHardwareLevel == FULL`);
          &amp;gt;= 2 for LIMITED mode devices (`android.info.supportedHardwareLevel == LIMITED`).
          </range>
          <details>
          This value contains the max number of output simultaneous
          streams for any processed (but not-stalling) formats.

          This lists the upper bound of the number of output streams supported by
          the camera device. Using more streams simultaneously may require more hardware and
          CPU resources that will consume more power. The image format for this kind of an output stream can
          be any non-`RAW` and supported format provided by android.scaler.streamConfigurationMap.

          Processed (but not-stalling) is defined as any non-RAW format without a stall duration.
          Typically:

          * ImageFormat#YUV_420_888
          * ImageFormat#NV21
          * ImageFormat#YV12
          * Implementation-defined formats, i.e. StreamConfiguration#isOutputSupportedFor(Class)

          For full guarantees, query StreamConfigurationMap#getOutputStallDuration with
          a processed format -- it will return 0 for a non-stalling stream.

          LEGACY devices will support at least 2 processing/non-stalling streams.
          </details>
        </entry>
        <entry name="maxNumOutputProcStalling" type="int32" visibility="public" synthetic="true" hwlevel="legacy">
          <description>The maximum numbers of different types of output streams
          that can be configured and used simultaneously by a camera device
          for any processed (and stalling) formats.
          </description>
          <range>
          &amp;gt;= 1
          </range>
          <details>
          This value contains the max number of output simultaneous
          streams for any processed (but not-stalling) formats.

          This lists the upper bound of the number of output streams supported by
          the camera device. Using more streams simultaneously may require more hardware and
          CPU resources that will consume more power. The image format for this kind of an output stream can
          be any non-`RAW` and supported format provided by android.scaler.streamConfigurationMap.

          A processed and stalling format is defined as any non-RAW format with a stallDurations &amp;gt; 0.
          Typically only the `JPEG` format (ImageFormat#JPEG) is a stalling format.

          For full guarantees, query StreamConfigurationMap#getOutputStallDuration with
          a processed format -- it will return a non-0 value for a stalling stream.

          LEGACY devices will support up to 1 processing/stalling stream.
          </details>
        </entry>
        <entry name="maxNumReprocessStreams" type="int32" visibility="system"
        deprecated="true" container="array">
          <array>
            <size>1</size>
          </array>
          <description>How many reprocessing streams of any type
          can be allocated at the same time.</description>
          <range>&amp;gt;= 0</range>
          <details>
          Only used by HAL2.x.

          When set to 0, it means no reprocess stream is supported.
          </details>
          <tag id="HAL2" />
        </entry>
        <entry name="maxNumInputStreams" type="int32" visibility="hidden" hwlevel="full">
          <description>
          The maximum numbers of any type of input streams
          that can be configured and used simultaneously by a camera device.
          </description>
          <range>
          0 or 1.
          </range>
          <details>When set to 0, it means no input stream is supported.

          The image format for a input stream can be any supported
          format provided by
          android.scaler.availableInputOutputFormatsMap. When using an
          input stream, there must be at least one output stream
          configured to to receive the reprocessed images.

          For example, for Zero Shutter Lag (ZSL) still capture use case, the input
          stream image format will be RAW_OPAQUE, the associated output stream image format
          should be JPEG.
          </details>
        </entry>
      </static>
      <dynamic>
        <entry name="frameCount" type="int32" visibility="hidden" deprecated="true">
          <description>A frame counter set by the framework. This value monotonically
          increases with every new result (that is, each new result has a unique
          frameCount value).</description>
          <units>count of frames</units>
          <range>&amp;gt; 0</range>
          <details>Reset on release()</details>
        </entry>
        <clone entry="android.request.id" kind="controls"></clone>
        <clone entry="android.request.metadataMode"
        kind="controls"></clone>
        <clone entry="android.request.outputStreams"
        kind="controls"></clone>
        <entry name="pipelineDepth" type="byte" visibility="public" hwlevel="legacy">
          <description>Specifies the number of pipeline stages the frame went
          through from when it was exposed to when the final completed result
          was available to the framework.</description>
          <range>&amp;lt;= android.request.pipelineMaxDepth</range>
          <details>Depending on what settings are used in the request, and
          what streams are configured, the data may undergo less processing,
          and some pipeline stages skipped.

          See android.request.pipelineMaxDepth for more details.
          </details>
          <hal_details>
          This value must always represent the accurate count of how many
          pipeline stages were actually used.
          </hal_details>
        </entry>
      </dynamic>
      <static>
        <entry name="pipelineMaxDepth" type="byte" visibility="public" hwlevel="legacy">
          <description>Specifies the number of maximum pipeline stages a frame
          has to go through from when it's exposed to when it's available
          to the framework.</description>
          <details>A typical minimum value for this is 2 (one stage to expose,
          one stage to readout) from the sensor. The ISP then usually adds
          its own stages to do custom HW processing. Further stages may be
          added by SW processing.

          Depending on what settings are used (e.g. YUV, JPEG) and what
          processing is enabled (e.g. face detection), the actual pipeline
          depth (specified by android.request.pipelineDepth) may be less than
          the max pipeline depth.

          A pipeline depth of X stages is equivalent to a pipeline latency of
          X frame intervals.

          This value will be 8 or less.
          </details>
          <hal_details>
          This value should be 4 or less.
          </hal_details>
        </entry>
        <entry name="partialResultCount" type="int32" visibility="public" optional="true">
          <description>Defines how many sub-components
          a result will be composed of.
          </description>
          <range>&amp;gt;= 1</range>
          <details>In order to combat the pipeline latency, partial results
          may be delivered to the application layer from the camera device as
          soon as they are available.

          Optional; defaults to 1. A value of 1 means that partial
          results are not supported, and only the final TotalCaptureResult will
          be produced by the camera device.

          A typical use case for this might be: after requesting an
          auto-focus (AF) lock the new AF state might be available 50%
          of the way through the pipeline.  The camera device could
          then immediately dispatch this state via a partial result to
          the application, and the rest of the metadata via later
          partial results.
          </details>
        </entry>
        <entry name="availableCapabilities" type="byte" visibility="public"
          enum="true" container="array" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <enum>
            <value>BACKWARD_COMPATIBLE
              <notes>The minimal set of capabilities that every camera
                device (regardless of android.info.supportedHardwareLevel)
                supports.

                This capability is listed by all devices, and
                indicates that the camera device has a feature set
                that's comparable to the baseline requirements for the
                older android.hardware.Camera API.
              </notes>
            </value>
            <value optional="true">MANUAL_SENSOR
              <notes>
              The camera device can be manually controlled (3A algorithms such
              as auto-exposure, and auto-focus can be bypassed).
              The camera device supports basic manual control of the sensor image
              acquisition related stages. This means the following controls are
              guaranteed to be supported:

              * Manual frame duration control
                  * android.sensor.frameDuration
                  * android.sensor.info.maxFrameDuration
              * Manual exposure control
                  * android.sensor.exposureTime
                  * android.sensor.info.exposureTimeRange
              * Manual sensitivity control
                  * android.sensor.sensitivity
                  * android.sensor.info.sensitivityRange
              * Manual lens control (if the lens is adjustable)
                  * android.lens.*
              * Manual flash control (if a flash unit is present)
                  * android.flash.*
              * Manual black level locking
                  * android.blackLevel.lock

              If any of the above 3A algorithms are enabled, then the camera
              device will accurately report the values applied by 3A in the
              result.

              A given camera device may also support additional manual sensor controls,
              but this capability only covers the above list of controls.

              If this is supported, android.scaler.streamConfigurationMap will
              additionally return a min frame duration that is greater than
              zero for each supported size-format combination.
              </notes>
            </value>
            <value optional="true">MANUAL_POST_PROCESSING
              <notes>
              The camera device post-processing stages can be manually controlled.
              The camera device supports basic manual control of the image post-processing
              stages. This means the following controls are guaranteed to be supported:

              * Manual tonemap control
                    * android.tonemap.curve
                    * android.tonemap.mode
                    * android.tonemap.maxCurvePoints
              * Manual white balance control
                  * android.colorCorrection.transform
                  * android.colorCorrection.gains
              * Manual lens shading map control
                    * android.shading.mode
                    * android.statistics.lensShadingMapMode
                    * android.statistics.lensShadingMap
                    * android.lens.info.shadingMapSize
              * Manual aberration correction control (if aberration correction is supported)
                    * android.colorCorrection.aberrationMode
                    * android.colorCorrection.availableAberrationModes

              If auto white balance is enabled, then the camera device
              will accurately report the values applied by AWB in the result.

              A given camera device may also support additional post-processing
              controls, but this capability only covers the above list of controls.
              </notes>
            </value>
            <value optional="true">RAW
              <notes>
              The camera device supports outputting RAW buffers and
              metadata for interpreting them.

              Devices supporting the RAW capability allow both for
              saving DNG files, and for direct application processing of
              raw sensor images.

              * RAW_SENSOR is supported as an output format.
              * The maximum available resolution for RAW_SENSOR streams
                will match either the value in
                android.sensor.info.pixelArraySize or
                android.sensor.info.activeArraySize.
              * All DNG-related optional metadata entries are provided
                by the camera device.
              </notes>
            </value>
            <value optional="true" hidden="true">ZSL
              <notes>
              The camera device supports the Zero Shutter Lag use case.

              * At least one input stream can be used.
              * RAW_OPAQUE is supported as an output/input format
              * Using RAW_OPAQUE does not cause a frame rate drop
                relative to the sensor's maximum capture rate (at that
                resolution).
              * RAW_OPAQUE will be reprocessable into both YUV_420_888
                and JPEG formats.
              * The maximum available resolution for RAW_OPAQUE streams
                (both input/output) will match the maximum available
                resolution of JPEG streams.
              </notes>
            </value>
            <value optional="true">READ_SENSOR_SETTINGS
              <notes>
              The camera device supports accurately reporting the sensor settings for many of
              the sensor controls while the built-in 3A algorithm is running.  This allows
              reporting of sensor settings even when these settings cannot be manually changed.

              The values reported for the following controls are guaranteed to be available
              in the CaptureResult, including when 3A is enabled:

              * Exposure control
                  * android.sensor.exposureTime
              * Sensitivity control
                  * android.sensor.sensitivity
              * Lens controls (if the lens is adjustable)
                  * android.lens.focusDistance
                  * android.lens.aperture

              This capability is a subset of the MANUAL_SENSOR control capability, and will
              always be included if the MANUAL_SENSOR capability is available.
              </notes>
            </value>
          </enum>
          <description>List of capabilities that this camera device
          advertises as fully supporting.</description>
          <details>
          A capability is a contract that the camera device makes in order
          to be able to satisfy one or more use cases.

          Listing a capability guarantees that the whole set of features
          required to support a common use will all be available.

          Using a subset of the functionality provided by an unsupported
          capability may be possible on a specific camera device implementation;
          to do this query each of android.request.availableRequestKeys,
          android.request.availableResultKeys,
          android.request.availableCharacteristicsKeys.

          The following capabilities are guaranteed to be available on
          android.info.supportedHardwareLevel `==` FULL devices:

          * MANUAL_SENSOR
          * MANUAL_POST_PROCESSING

          Other capabilities may be available on either FULL or LIMITED
          devices, but the application should query this key to be sure.
          </details>
          <hal_details>
          Additional constraint details per-capability will be available
          in the Compatibility Test Suite.

          Minimum baseline requirements required for the
          BACKWARD_COMPATIBLE capability are not explicitly listed.
          Instead refer to "BC" tags and the camera CTS tests in the
          android.hardware.camera2.cts package.

          Listed controls that can be either request or result (e.g.
          android.sensor.exposureTime) must be available both in the
          request and the result in order to be considered to be
          capability-compliant.

          For example, if the HAL claims to support MANUAL control,
          then exposure time must be configurable via the request _and_
          the actual exposure applied must be available via
          the result.

          If MANUAL_SENSOR is omitted, the HAL may choose to omit the
          android.scaler.availableMinFrameDurations static property entirely.
          </hal_details>
        </entry>
        <entry name="availableRequestKeys" type="int32" visibility="hidden"
          container="array" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>A list of all keys that the camera device has available
          to use with CaptureRequest.</description>

          <details>Attempting to set a key into a CaptureRequest that is not
          listed here will result in an invalid request and will be rejected
          by the camera device.

          This field can be used to query the feature set of a camera device
          at a more granular level than capabilities. This is especially
          important for optional keys that are not listed under any capability
          in android.request.availableCapabilities.
          </details>
          <hal_details>
          Vendor tags must not be listed here. Use the vendor tag metadata
          extensions C api instead (refer to camera3.h for more details).

          Setting/getting vendor tags will be checked against the metadata
          vendor extensions API and not against this field.

          The HAL must not consume any request tags that are not listed either
          here or in the vendor tag list.

          The public camera2 API will always make the vendor tags visible
          via CameraCharacteristics#getAvailableCaptureRequestKeys.
          </hal_details>
        </entry>
        <entry name="availableResultKeys" type="int32" visibility="hidden"
          container="array" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>A list of all keys that the camera device has available
          to use with CaptureResult.</description>

          <details>Attempting to get a key from a CaptureResult that is not
          listed here will always return a `null` value. Getting a key from
          a CaptureResult that is listed here will generally never return a `null`
          value.

          The following keys may return `null` unless they are enabled:

          * android.statistics.lensShadingMap (non-null iff android.statistics.lensShadingMapMode == ON)

          (Those sometimes-null keys will nevertheless be listed here
          if they are available.)

          This field can be used to query the feature set of a camera device
          at a more granular level than capabilities. This is especially
          important for optional keys that are not listed under any capability
          in android.request.availableCapabilities.
          </details>
          <hal_details>
          Tags listed here must always have an entry in the result metadata,
          even if that size is 0 elements. Only array-type tags (e.g. lists,
          matrices, strings) are allowed to have 0 elements.

          Vendor tags must not be listed here. Use the vendor tag metadata
          extensions C api instead (refer to camera3.h for more details).

          Setting/getting vendor tags will be checked against the metadata
          vendor extensions API and not against this field.

          The HAL must not produce any result tags that are not listed either
          here or in the vendor tag list.

          The public camera2 API will always make the vendor tags visible
          via CameraCharacteristics#getAvailableCaptureResultKeys.
          </hal_details>
        </entry>
        <entry name="availableCharacteristicsKeys" type="int32" visibility="hidden"
          container="array" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>A list of all keys that the camera device has available
          to use with CameraCharacteristics.</description>
          <details>This entry follows the same rules as
          android.request.availableResultKeys (except that it applies for
          CameraCharacteristics instead of CaptureResult). See above for more
          details.
          </details>
          <hal_details>
          Keys listed here must always have an entry in the static info metadata,
          even if that size is 0 elements. Only array-type tags (e.g. lists,
          matrices, strings) are allowed to have 0 elements.

          Vendor tags must not be listed here. Use the vendor tag metadata
          extensions C api instead (refer to camera3.h for more details).

          Setting/getting vendor tags will be checked against the metadata
          vendor extensions API and not against this field.

          The HAL must not have any tags in its static info that are not listed
          either here or in the vendor tag list.

          The public camera2 API will always make the vendor tags visible
          via CameraCharacteristics#getKeys.
          </hal_details>
        </entry>
      </static>
    </section>
    <section name="scaler">
      <controls>
        <entry name="cropRegion" type="int32" visibility="public"
               container="array" typedef="rectangle" hwlevel="legacy">
          <array>
            <size>4</size>
          </array>
          <description>The desired region of the sensor to read out for this capture.</description>
          <units>Pixel coordinates relative to
          android.sensor.info.activeArraySize</units>
          <details>
            This control can be used to implement digital zoom.

            The crop region coordinate system is based off
            android.sensor.info.activeArraySize, with `(0, 0)` being the
            top-left corner of the sensor active array.

            Output streams use this rectangle to produce their output,
            cropping to a smaller region if necessary to maintain the
            stream's aspect ratio, then scaling the sensor input to
            match the output's configured resolution.

            The crop region is applied after the RAW to other color
            space (e.g. YUV) conversion. Since raw streams
            (e.g. RAW16) don't have the conversion stage, they are not
            croppable. The crop region will be ignored by raw streams.

            For non-raw streams, any additional per-stream cropping will
            be done to maximize the final pixel area of the stream.

            For example, if the crop region is set to a 4:3 aspect
            ratio, then 4:3 streams will use the exact crop
            region. 16:9 streams will further crop vertically
            (letterbox).

            Conversely, if the crop region is set to a 16:9, then 4:3
            outputs will crop horizontally (pillarbox), and 16:9
            streams will match exactly. These additional crops will
            be centered within the crop region.

            The width and height of the crop region cannot
            be set to be smaller than
            `floor( activeArraySize.width / android.scaler.availableMaxDigitalZoom )` and
            `floor( activeArraySize.height / android.scaler.availableMaxDigitalZoom )`, respectively.

            The camera device may adjust the crop region to account
            for rounding and other hardware requirements; the final
            crop region used will be included in the output capture
            result.
          </details>
          <hal_details>
            The output streams must maintain square pixels at all
            times, no matter what the relative aspect ratios of the
            crop region and the stream are.  Negative values for
            corner are allowed for raw output if full pixel array is
            larger than active pixel array. Width and height may be
            rounded to nearest larger supportable width, especially
            for raw output, where only a few fixed scales may be
            possible.

            HAL2.x uses only (x, y, width)
          </hal_details>
          <tag id="BC" />
        </entry>
      </controls>
      <static>
        <entry name="availableFormats" type="int32"
        visibility="hidden" deprecated="true" enum="true"
        container="array" typedef="imageFormat">
          <array>
            <size>n</size>
          </array>
          <enum>
            <value optional="true" id="0x20">RAW16
              <notes>
              RAW16 is a standard, cross-platform format for raw image
              buffers with 16-bit pixels.

              Buffers of this format are typically expected to have a
              Bayer Color Filter Array (CFA) layout, which is given in
              android.sensor.info.colorFilterArrangement. Sensors with
              CFAs that are not representable by a format in
              android.sensor.info.colorFilterArrangement should not
              use this format.

              Buffers of this format will also follow the constraints given for
              RAW_OPAQUE buffers, but with relaxed performance constraints.

              See android.scaler.availableInputOutputFormatsMap for
              the full set of performance guarantees.
              </notes>
            </value>
            <value optional="true" id="0x24">RAW_OPAQUE
              <notes>
              RAW_OPAQUE is a format for raw image buffers coming from an
              image sensor.

              The actual structure of buffers of this format is
              platform-specific, but must follow several constraints:

              1. No image post-processing operations may have been applied to
              buffers of this type. These buffers contain raw image data coming
              directly from the image sensor.
              1. If a buffer of this format is passed to the camera device for
              reprocessing, the resulting images will be identical to the images
              produced if the buffer had come directly from the sensor and was
              processed with the same settings.

              The intended use for this format is to allow access to the native
              raw format buffers coming directly from the camera sensor without
              any additional conversions or decrease in framerate.

              See android.scaler.availableInputOutputFormatsMap for the full set of
              performance guarantees.
              </notes>
            </value>
            <value optional="true" id="0x32315659">YV12
              <notes>YCrCb 4:2:0 Planar</notes>
            </value>
            <value optional="true" id="0x11">YCrCb_420_SP
              <notes>NV21</notes>
            </value>
            <value id="0x22">IMPLEMENTATION_DEFINED
              <notes>System internal format, not application-accessible</notes>
            </value>
            <value id="0x23">YCbCr_420_888
              <notes>Flexible YUV420 Format</notes>
            </value>
            <value id="0x21">BLOB
              <notes>JPEG format</notes>
            </value>
          </enum>
          <description>The list of image formats that are supported by this
          camera device for output streams.</description>
          <details>
          All camera devices will support JPEG and YUV_420_888 formats.

          When set to YUV_420_888, application can access the YUV420 data directly.
          </details>
          <hal_details>
          These format values are from HAL_PIXEL_FORMAT_* in
          system/core/include/system/graphics.h.

          When IMPLEMENTATION_DEFINED is used, the platform
          gralloc module will select a format based on the usage flags provided
          by the camera HAL device and the other endpoint of the stream. It is
          usually used by preview and recording streams, where the application doesn't
          need access the image data.

          YCbCr_420_888 format must be supported by the HAL. When an image stream
          needs CPU/application direct access, this format will be used.

          The BLOB format must be supported by the HAL. This is used for the JPEG stream.

          A RAW_OPAQUE buffer should contain only pixel data. It is strongly
          recommended that any information used by the camera device when
          processing images is fully expressed by the result metadata
          for that image buffer.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="availableJpegMinDurations" type="int64" visibility="hidden" deprecated="true"
        container="array">
          <array>
            <size>n</size>
          </array>
          <description>The minimum frame duration that is supported
          for each resolution in android.scaler.availableJpegSizes.
          </description>
          <units>Nanoseconds</units>
          <range>TODO: Remove property.</range>
          <details>
          This corresponds to the minimum steady-state frame duration when only
          that JPEG stream is active and captured in a burst, with all
          processing (typically in android.*.mode) set to FAST.

          When multiple streams are configured, the minimum
          frame duration will be &amp;gt;= max(individual stream min
          durations)</details>
          <tag id="BC" />
        </entry>
        <entry name="availableJpegSizes" type="int32" visibility="hidden"
        deprecated="true" container="array" typedef="size">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>The JPEG resolutions that are supported by this camera device.</description>
          <range>TODO: Remove property.</range>
          <details>
          The resolutions are listed as `(width, height)` pairs. All camera devices will support
          sensor maximum resolution (defined by android.sensor.info.activeArraySize).
          </details>
          <hal_details>
          The HAL must include sensor maximum resolution
          (defined by android.sensor.info.activeArraySize),
          and should include half/quarter of sensor maximum resolution.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="availableMaxDigitalZoom" type="float" visibility="public"
              hwlevel="legacy">
          <description>The maximum ratio between both active area width
          and crop region width, and active area height and
          crop region height, for android.scaler.cropRegion.
          </description>
          <units>Zoom scale factor</units>
          <range>&amp;gt;=1</range>
          <details>
          This represents the maximum amount of zooming possible by
          the camera device, or equivalently, the minimum cropping
          window size.

          Crop regions that have a width or height that is smaller
          than this ratio allows will be rounded up to the minimum
          allowed size by the camera device.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="availableProcessedMinDurations" type="int64" visibility="hidden" deprecated="true"
        container="array">
          <array>
            <size>n</size>
          </array>
          <description>For each available processed output size (defined in
          android.scaler.availableProcessedSizes), this property lists the
          minimum supportable frame duration for that size.
          </description>
          <units>Nanoseconds</units>
          <details>
          This should correspond to the frame duration when only that processed
          stream is active, with all processing (typically in android.*.mode)
          set to FAST.

          When multiple streams are configured, the minimum frame duration will
          be &amp;gt;= max(individual stream min durations).
          </details>
          <tag id="BC" />
        </entry>
        <entry name="availableProcessedSizes" type="int32" visibility="hidden"
        deprecated="true" container="array" typedef="size">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>The resolutions available for use with
          processed output streams, such as YV12, NV12, and
          platform opaque YUV/RGB streams to the GPU or video
          encoders.</description>
          <details>
          The resolutions are listed as `(width, height)` pairs.

          For a given use case, the actual maximum supported resolution
          may be lower than what is listed here, depending on the destination
          Surface for the image data. For example, for recording video,
          the video encoder chosen may have a maximum size limit (e.g. 1080p)
          smaller than what the camera (e.g. maximum resolution is 3264x2448)
          can provide.

          Please reference the documentation for the image data destination to
          check if it limits the maximum size for image data.
          </details>
          <hal_details>
          For FULL capability devices (`android.info.supportedHardwareLevel == FULL`),
          the HAL must include all JPEG sizes listed in android.scaler.availableJpegSizes
          and each below resolution if it is smaller than or equal to the sensor
          maximum resolution (if they are not listed in JPEG sizes already):

          * 240p (320 x 240)
          * 480p (640 x 480)
          * 720p (1280 x 720)
          * 1080p (1920 x 1080)

          For LIMITED capability devices (`android.info.supportedHardwareLevel == LIMITED`),
          the HAL only has to list up to the maximum video size supported by the devices.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="availableRawMinDurations" type="int64" deprecated="true"
        container="array">
          <array>
            <size>n</size>
          </array>
          <description>
          For each available raw output size (defined in
          android.scaler.availableRawSizes), this property lists the minimum
          supportable frame duration for that size.
          </description>
          <units>Nanoseconds</units>
          <details>
          Should correspond to the frame duration when only the raw stream is
          active.

          When multiple streams are configured, the minimum
          frame duration will be &amp;gt;= max(individual stream min
          durations)</details>
          <tag id="BC" />
        </entry>
        <entry name="availableRawSizes" type="int32" deprecated="true"
        container="array" typedef="size">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>The resolutions available for use with raw
          sensor output streams, listed as width,
          height</description>
        </entry>
      </static>
      <dynamic>
        <clone entry="android.scaler.cropRegion" kind="controls">
        </clone>
      </dynamic>
      <static>
        <entry name="availableInputOutputFormatsMap" type="int32"
        visibility="hidden"
        container="array" typedef="imageFormat"
        hwlevel="full">
          <array>
            <size>n</size>
          </array>
          <description>The mapping of image formats that are supported by this
          camera device for input streams, to their corresponding output formats.
          </description>
          <details>
          All camera devices with at least 1
          android.request.maxNumInputStreams will have at least one
          available input format.

          The camera device will support the following map of formats,
          if its dependent capability is supported:

            Input Format  | Output Format    | Capability
          :---------------|:-----------------|:----------
          RAW_OPAQUE      | JPEG             | ZSL
          RAW_OPAQUE      | YUV_420_888      | ZSL
          RAW_OPAQUE      | RAW16            | RAW
          RAW16           | YUV_420_888      | RAW
          RAW16           | JPEG             | RAW

          For ZSL-capable camera devices, using the RAW_OPAQUE format
          as either input or output will never hurt maximum frame rate (i.e.
          StreamConfigurationMap#getOutputStallDuration(int,Size)
          for a `format =` RAW_OPAQUE is always 0).

          Attempting to configure an input stream with output streams not
          listed as available in this map is not valid.

          TODO: typedef to ReprocessFormatMap
          </details>
          <hal_details>
          For the formats, see `system/core/include/system/graphics.h` for a definition
          of the image format enumerations.

          This value is encoded as a variable-size array-of-arrays.
          The inner array always contains `[format, length, ...]` where
          `...` has `length` elements. An inner array is followed by another
          inner array if the total metadata entry size hasn't yet been exceeded.

          A code sample to read/write this encoding (with a device that
          supports reprocessing RAW_OPAQUE to RAW16, YUV_420_888, and JPEG,
          and reprocessing RAW16 to YUV_420_888 and JPEG):

              // reading
              int32_t* contents = &amp;entry.i32[0];
              for (size_t i = 0; i &lt; entry.count; ) {
                  int32_t format = contents[i++];
                  int32_t length = contents[i++];
                  int32_t output_formats[length];
                  memcpy(&amp;output_formats[0], &amp;contents[i],
                         length * sizeof(int32_t));
                  i += length;
              }

              // writing (static example, RAW+ZSL)
              int32_t[] contents = {
                RAW_OPAQUE, 3, RAW16, YUV_420_888, BLOB,
                RAW16, 2, YUV_420_888, BLOB,
              };
              update_camera_metadata_entry(metadata, index, &amp;contents[0],
                    sizeof(contents)/sizeof(contents[0]), &amp;updated_entry);

          If the HAL claims to support any of the capabilities listed in the
          above details, then it must also support all the input-output
          combinations listed for that capability. It can optionally support
          additional formats if it so chooses.

          Refer to android.scaler.availableFormats for the enum values
          which correspond to HAL_PIXEL_FORMAT_* in
          system/core/include/system/graphics.h.
          </hal_details>
        </entry>
        <entry name="availableStreamConfigurations" type="int32" visibility="hidden"
          enum="true" container="array"
          typedef="streamConfiguration" hwlevel="legacy">
          <array>
            <size>n</size>
            <size>4</size>
          </array>
          <enum>
            <value>OUTPUT</value>
            <value>INPUT</value>
          </enum>
          <description>The available stream configurations that this
          camera device supports
          (i.e. format, width, height, output/input stream).
          </description>
          <details>
          The configurations are listed as `(format, width, height, input?)`
          tuples.

          For a given use case, the actual maximum supported resolution
          may be lower than what is listed here, depending on the destination
          Surface for the image data. For example, for recording video,
          the video encoder chosen may have a maximum size limit (e.g. 1080p)
          smaller than what the camera (e.g. maximum resolution is 3264x2448)
          can provide.

          Please reference the documentation for the image data destination to
          check if it limits the maximum size for image data.

          Not all output formats may be supported in a configuration with
          an input stream of a particular format. For more details, see
          android.scaler.availableInputOutputFormatsMap.

          The following table describes the minimum required output stream
          configurations based on the hardware level
          (android.info.supportedHardwareLevel):

          Format         | Size                                         | Hardware Level | Notes
          :-------------:|:--------------------------------------------:|:--------------:|:--------------:
          JPEG           | android.sensor.info.activeArraySize          | Any            |
          JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
          JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
          JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
          JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
          YUV_420_888    | all output sizes available for JPEG          | FULL           |
          YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
          IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |

          Refer to android.request.availableCapabilities for additional
          mandatory stream configurations on a per-capability basis.
          </details>
          <hal_details>
          It is recommended (but not mandatory) to also include half/quarter
          of sensor maximum resolution for JPEG formats (regardless of hardware
          level).

          (The following is a rewording of the above required table):

          For JPEG format, the sizes may be restricted by below conditions:

          * The HAL may choose the aspect ratio of each Jpeg size to be one of well known ones
          (e.g. 4:3, 16:9, 3:2 etc.). If the sensor maximum resolution
          (defined by android.sensor.info.activeArraySize) has an aspect ratio other than these,
          it does not have to be included in the supported JPEG sizes.
          * Some hardware JPEG encoders may have pixel boundary alignment requirements, such as
          the dimensions being a multiple of 16.

          Therefore, the maximum JPEG size may be smaller than sensor maximum resolution.
          However, the largest JPEG size must be as close as possible to the sensor maximum
          resolution given above constraints. It is required that after aspect ratio adjustments,
          additional size reduction due to other issues must be less than 3% in area. For example,
          if the sensor maximum resolution is 3280x2464, if the maximum JPEG size has aspect
          ratio 4:3, the JPEG encoder alignment requirement is 16, the maximum JPEG size will be
          3264x2448.

          For FULL capability devices (`android.info.supportedHardwareLevel == FULL`),
          the HAL must include all YUV_420_888 sizes that have JPEG sizes listed
          here as output streams.

          It must also include each below resolution if it is smaller than or
          equal to the sensor maximum resolution (for both YUV_420_888 and JPEG
          formats), as output streams:

          * 240p (320 x 240)
          * 480p (640 x 480)
          * 720p (1280 x 720)
          * 1080p (1920 x 1080)

          For LIMITED capability devices
          (`android.info.supportedHardwareLevel == LIMITED`),
          the HAL only has to list up to the maximum video size
          supported by the device.

          Regardless of hardware level, every output resolution available for
          YUV_420_888 must also be available for IMPLEMENTATION_DEFINED.

          This supercedes the following fields, which are now deprecated:

          * availableFormats
          * available[Processed,Raw,Jpeg]Sizes
          </hal_details>
        </entry>
        <entry name="availableMinFrameDurations" type="int64" visibility="hidden"
               container="array"
               typedef="streamConfigurationDuration" hwlevel="legacy">
          <array>
            <size>4</size>
            <size>n</size>
          </array>
          <description>This lists the minimum frame duration for each
          format/size combination.
          </description>
          <units>(format, width, height, ns) x n</units>
          <details>
          This should correspond to the frame duration when only that
          stream is active, with all processing (typically in android.*.mode)
          set to either OFF or FAST.

          When multiple streams are used in a request, the minimum frame
          duration will be max(individual stream min durations).

          The minimum frame duration of a stream (of a particular format, size)
          is the same regardless of whether the stream is input or output.

          See android.sensor.frameDuration and
          android.scaler.availableStallDurations for more details about
          calculating the max frame rate.

          (Keep in sync with
          StreamConfigurationMap#getOutputMinFrameDuration)
          </details>
          <tag id="V1" />
        </entry>
        <entry name="availableStallDurations" type="int64" visibility="hidden"
               container="array" typedef="streamConfigurationDuration" hwlevel="legacy">
          <array>
            <size>4</size>
            <size>n</size>
          </array>
          <description>This lists the maximum stall duration for each
          format/size combination.
          </description>
          <units>(format, width, height, ns) x n</units>
          <details>
          A stall duration is how much extra time would get added
          to the normal minimum frame duration for a repeating request
          that has streams with non-zero stall.

          For example, consider JPEG captures which have the following
          characteristics:

          * JPEG streams act like processed YUV streams in requests for which
          they are not included; in requests in which they are directly
          referenced, they act as JPEG streams. This is because supporting a
          JPEG stream requires the underlying YUV data to always be ready for
          use by a JPEG encoder, but the encoder will only be used (and impact
          frame duration) on requests that actually reference a JPEG stream.
          * The JPEG processor can run concurrently to the rest of the camera
          pipeline, but cannot process more than 1 capture at a time.

          In other words, using a repeating YUV request would result
          in a steady frame rate (let's say it's 30 FPS). If a single
          JPEG request is submitted periodically, the frame rate will stay
          at 30 FPS (as long as we wait for the previous JPEG to return each
          time). If we try to submit a repeating YUV + JPEG request, then
          the frame rate will drop from 30 FPS.

          In general, submitting a new request with a non-0 stall time
          stream will _not_ cause a frame rate drop unless there are still
          outstanding buffers for that stream from previous requests.

          Submitting a repeating request with streams (call this `S`)
          is the same as setting the minimum frame duration from
          the normal minimum frame duration corresponding to `S`, added with
          the maximum stall duration for `S`.

          If interleaving requests with and without a stall duration,
          a request will stall by the maximum of the remaining times
          for each can-stall stream with outstanding buffers.

          This means that a stalling request will not have an exposure start
          until the stall has completed.

          This should correspond to the stall duration when only that stream is
          active, with all processing (typically in android.*.mode) set to FAST
          or OFF. Setting any of the processing modes to HIGH_QUALITY
          effectively results in an indeterminate stall duration for all
          streams in a request (the regular stall calculation rules are
          ignored).

          The following formats may always have a stall duration:

          * ImageFormat#JPEG
          * ImageFormat#RAW_SENSOR

          The following formats will never have a stall duration:

          * ImageFormat#YUV_420_888

          All other formats may or may not have an allowed stall duration on
          a per-capability basis; refer to android.request.availableCapabilities
          for more details.

          See android.sensor.frameDuration for more information about
          calculating the max frame rate (absent stalls).

          (Keep up to date with
          StreamConfigurationMap#getOutputStallDuration(int, Size) )
          </details>
          <hal_details>
          If possible, it is recommended that all non-JPEG formats
          (such as RAW16) should not have a stall duration. RAW10, RAW_OPAQUE and
          IMPLEMENTATION_DEFINED must not have stall durations.
          </hal_details>
          <tag id="V1" />
        </entry>
        <entry name="streamConfigurationMap" type="int32" visibility="public"
               synthetic="true" typedef="streamConfigurationMap"
               hwlevel="legacy">
          <description>The available stream configurations that this
          camera device supports; also includes the minimum frame durations
          and the stall durations for each format/size combination.
          </description>
          <details>
          All camera devices will support sensor maximum resolution (defined by
          android.sensor.info.activeArraySize) for the JPEG format.

          For a given use case, the actual maximum supported resolution
          may be lower than what is listed here, depending on the destination
          Surface for the image data. For example, for recording video,
          the video encoder chosen may have a maximum size limit (e.g. 1080p)
          smaller than what the camera (e.g. maximum resolution is 3264x2448)
          can provide.

          Please reference the documentation for the image data destination to
          check if it limits the maximum size for image data.

          The following table describes the minimum required output stream
          configurations based on the hardware level
          (android.info.supportedHardwareLevel):

          Format         | Size                                         | Hardware Level | Notes
          :-------------:|:--------------------------------------------:|:--------------:|:--------------:
          JPEG           | android.sensor.info.activeArraySize          | Any            |
          JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
          JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
          JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
          JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
          YUV_420_888    | all output sizes available for JPEG          | FULL           |
          YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
          IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |

          Refer to android.request.availableCapabilities for additional
          mandatory stream configurations on a per-capability basis.
          </details>
          <hal_details>
          Do not set this property directly
          (it is synthetic and will not be available at the HAL layer);
          set the android.scaler.availableStreamConfigurations instead.

          Not all output formats may be supported in a configuration with
          an input stream of a particular format. For more details, see
          android.scaler.availableInputOutputFormatsMap.

          It is recommended (but not mandatory) to also include half/quarter
          of sensor maximum resolution for JPEG formats (regardless of hardware
          level).

          (The following is a rewording of the above required table):

          The HAL must include sensor maximum resolution (defined by
          android.sensor.info.activeArraySize).

          For FULL capability devices (`android.info.supportedHardwareLevel == FULL`),
          the HAL must include all YUV_420_888 sizes that have JPEG sizes listed
          here as output streams.

          It must also include each below resolution if it is smaller than or
          equal to the sensor maximum resolution (for both YUV_420_888 and JPEG
          formats), as output streams:

          * 240p (320 x 240)
          * 480p (640 x 480)
          * 720p (1280 x 720)
          * 1080p (1920 x 1080)

          For LIMITED capability devices
          (`android.info.supportedHardwareLevel == LIMITED`),
          the HAL only has to list up to the maximum video size
          supported by the device.

          Regardless of hardware level, every output resolution available for
          YUV_420_888 must also be available for IMPLEMENTATION_DEFINED.

          This supercedes the following fields, which are now deprecated:

          * availableFormats
          * available[Processed,Raw,Jpeg]Sizes
          </hal_details>
        </entry>
        <entry name="croppingType" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>CENTER_ONLY
              <notes>
                The camera device only supports centered crop regions.
              </notes>
            </value>
            <value>FREEFORM
              <notes>
                The camera device supports arbitrarily chosen crop regions.
              </notes>
            </value>
          </enum>
          <description>The crop type that this camera device supports.</description>
          <details>
          When passing a non-centered crop region (android.scaler.cropRegion) to a camera
          device that only supports CENTER_ONLY cropping, the camera device will move the
          crop region to the center of the sensor active array (android.sensor.info.activeArraySize)
          and keep the crop region width and height unchanged. The camera device will return the
          final used crop region in metadata result android.scaler.cropRegion.

          Camera devices that support FREEFORM cropping will support any crop region that
          is inside of the active array. The camera device will apply the same crop region and
          return the final used crop region in capture result metadata android.scaler.cropRegion.

          FULL capability devices (android.info.supportedHardwareLevel `==` FULL) will support
          FREEFORM cropping. LEGACY capability devices will only support CENTER_ONLY cropping.
          </details>
        </entry>
      </static>
    </section>
    <section name="sensor">
      <controls>
        <entry name="exposureTime" type="int64" visibility="public" hwlevel="full">
          <description>Duration each pixel is exposed to
          light.</description>
          <units>Nanoseconds</units>
          <range>android.sensor.info.exposureTimeRange</range>
          <details>If the sensor can't expose this exact duration, it will shorten the
          duration exposed to the nearest possible value (rather than expose longer).
          The final exposure time used will be available in the output capture result.

          This control is only effective if android.control.aeMode or android.control.mode is set to
          OFF; otherwise the auto-exposure algorithm will override this value.
          </details>
          <tag id="V1" />
        </entry>
        <entry name="frameDuration" type="int64" visibility="public" hwlevel="full">
          <description>Duration from start of frame exposure to
          start of next frame exposure.</description>
          <units>Nanoseconds</units>
          <range>See android.sensor.info.maxFrameDuration,
          android.scaler.streamConfigurationMap. The duration
          is capped to `max(duration, exposureTime + overhead)`.</range>
          <details>
          The maximum frame rate that can be supported by a camera subsystem is
          a function of many factors:

          * Requested resolutions of output image streams
          * Availability of binning / skipping modes on the imager
          * The bandwidth of the imager interface
          * The bandwidth of the various ISP processing blocks

          Since these factors can vary greatly between different ISPs and
          sensors, the camera abstraction tries to represent the bandwidth
          restrictions with as simple a model as possible.

          The model presented has the following characteristics:

          * The image sensor is always configured to output the smallest
          resolution possible given the application's requested output stream
          sizes.  The smallest resolution is defined as being at least as large
          as the largest requested output stream size; the camera pipeline must
          never digitally upsample sensor data when the crop region covers the
          whole sensor. In general, this means that if only small output stream
          resolutions are configured, the sensor can provide a higher frame
          rate.
          * Since any request may use any or all the currently configured
          output streams, the sensor and ISP must be configured to support
          scaling a single capture to all the streams at the same time.  This
          means the camera pipeline must be ready to produce the largest
          requested output size without any delay.  Therefore, the overall
          frame rate of a given configured stream set is governed only by the
          largest requested stream resolution.
          * Using more than one output stream in a request does not affect the
          frame duration.
          * Certain format-streams may need to do additional background processing
          before data is consumed/produced by that stream. These processors
          can run concurrently to the rest of the camera pipeline, but
          cannot process more than 1 capture at a time.

          The necessary information for the application, given the model above,
          is provided via the android.scaler.streamConfigurationMap field
          using StreamConfigurationMap#getOutputMinFrameDuration(int, Size).
          These are used to determine the maximum frame rate / minimum frame
          duration that is possible for a given stream configuration.

          Specifically, the application can use the following rules to
          determine the minimum frame duration it can request from the camera
          device:

          1. Let the set of currently configured input/output streams
          be called `S`.
          1. Find the minimum frame durations for each stream in `S`, by
          looking it up in android.scaler.streamConfigurationMap using
          StreamConfigurationMap#getOutputMinFrameDuration(int, Size) (with
          its respective size/format). Let this set of frame durations be called
          `F`.
          1. For any given request `R`, the minimum frame duration allowed
          for `R` is the maximum out of all values in `F`. Let the streams
          used in `R` be called `S_r`.

          If none of the streams in `S_r` have a stall time (listed in
          StreamConfigurationMap#getOutputStallDuration(int,Size) using its
          respective size/format), then the frame duration in
          `F` determines the steady state frame rate that the application will
          get if it uses `R` as a repeating request. Let this special kind
          of request be called `Rsimple`.

          A repeating request `Rsimple` can be _occasionally_ interleaved
          by a single capture of a new request `Rstall` (which has at least
          one in-use stream with a non-0 stall time) and if `Rstall` has the
          same minimum frame duration this will not cause a frame rate loss
          if all buffers from the previous `Rstall` have already been
          delivered.

          For more details about stalling, see
          StreamConfigurationMap#getOutputStallDuration(int,Size).

          This control is only effective if android.control.aeMode or android.control.mode is set to
          OFF; otherwise the auto-exposure algorithm will override this value.
          </details>
          <hal_details>
          For more details about stalling, see
          android.scaler.availableStallDurations.
          </hal_details>
          <tag id="V1" />
        </entry>
        <entry name="sensitivity" type="int32" visibility="public" hwlevel="full">
          <description>The amount of gain applied to sensor data
          before processing.</description>
          <units>ISO arithmetic units</units>
          <range>android.sensor.info.sensitivityRange</range>
          <details>
          The sensitivity is the standard ISO sensitivity value,
          as defined in ISO 12232:2006.

          The sensitivity must be within android.sensor.info.sensitivityRange, and
          if if it less than android.sensor.maxAnalogSensitivity, the camera device
          is guaranteed to use only analog amplification for applying the gain.

          If the camera device cannot apply the exact sensitivity
          requested, it will reduce the gain to the nearest supported
          value. The final sensitivity used will be available in the
          output capture result.
          </details>
          <hal_details>ISO 12232:2006 REI method is acceptable.</hal_details>
          <tag id="V1" />
        </entry>
      </controls>
      <static>
        <namespace name="info">
          <entry name="activeArraySize" type="int32" visibility="public"
          type_notes="Four ints defining the active pixel rectangle"
          container="array"
          typedef="rectangle"
          hwlevel="legacy">
            <array>
              <size>4</size>
            </array>
            <description>The area of the image sensor which corresponds to
            active pixels.</description>
            <units>Pixel coordinates on the image sensor</units>
            <range>
            </range>
            <details>
            This is the region of the sensor that actually receives light from the scene.
            Therefore, the size of this region determines the maximum field of view and the maximum
            number of pixels that an image from this sensor can contain.

            The rectangle is defined in terms of the full pixel array; (0,0) is the top-left of the
            full pixel array, and the size of the full pixel array is given by
            android.sensor.info.pixelArraySize.

            Most other keys listing pixel coordinates have their coordinate systems based on the
            active array, with `(0, 0)` being the top-left of the active array rectangle.

            The active array may be smaller than the full pixel array, since the full array may
            include black calibration pixels or other inactive regions.
            </details>
            <hal_details>
            This array contains `(xmin, ymin, width, height)`. The `(xmin, ymin)` must be
            &amp;gt;= `(0,0)`.
            The `(width, height)` must be &amp;lt;= `android.sensor.info.pixelArraySize`.
            </hal_details>
            <tag id="RAW" />
          </entry>
          <entry name="sensitivityRange" type="int32" visibility="public"
          type_notes="Range of supported sensitivities"
          container="array" typedef="rangeInt"
          hwlevel="full">
            <array>
              <size>2</size>
            </array>
            <description>Range of sensitivities for android.sensor.sensitivity supported by this
            camera device.</description>
            <range>Min &lt;= 100, Max &amp;gt;= 800</range>
            <details>
              The values are the standard ISO sensitivity values,
              as defined in ISO 12232:2006.
            </details>

            <tag id="BC" />
            <tag id="V1" />
          </entry>
          <entry name="colorFilterArrangement" type="byte" visibility="public" enum="true"
            hwlevel="full">
            <enum>
              <value>RGGB</value>
              <value>GRBG</value>
              <value>GBRG</value>
              <value>BGGR</value>
              <value>RGB
              <notes>Sensor is not Bayer; output has 3 16-bit
              values for each pixel, instead of just 1 16-bit value
              per pixel.</notes></value>
            </enum>
            <description>The arrangement of color filters on sensor;
            represents the colors in the top-left 2x2 section of
            the sensor, in reading order.</description>
            <tag id="RAW" />
          </entry>
          <entry name="exposureTimeRange" type="int64" visibility="public"
                 type_notes="nanoseconds" container="array" typedef="rangeLong"
                 hwlevel="full">
            <array>
              <size>2</size>
            </array>
            <description>The range of image exposure times for android.sensor.exposureTime supported
            by this camera device.
            </description>
            <units>Nanoseconds</units>
            <range>The minimum exposure time will be less than 100 us. For FULL
            capability devices (android.info.supportedHardwareLevel == FULL),
            the maximum exposure time will be greater than 100ms.</range>
            <hal_details>For FULL capability devices (android.info.supportedHardwareLevel == FULL),
            The maximum of the range SHOULD be at least 1 second (1e9), MUST be at least
            100ms.
            </hal_details>
            <tag id="V1" />
          </entry>
          <entry name="maxFrameDuration" type="int64" visibility="public"
                 hwlevel="full">
            <description>The maximum possible frame duration (minimum frame rate) for
            android.sensor.frameDuration that is supported this camera device.</description>
            <units>Nanoseconds</units>
            <range>For FULL capability devices
            (android.info.supportedHardwareLevel == FULL), at least 100ms.
            </range>
            <details>Attempting to use frame durations beyond the maximum will result in the frame
            duration being clipped to the maximum. See that control for a full definition of frame
            durations.

            Refer to StreamConfigurationMap#getOutputMinFrameDuration(int,Size) for the minimum
            frame duration values.
            </details>
            <hal_details>
            For FULL capability devices (android.info.supportedHardwareLevel == FULL),
            The maximum of the range SHOULD be at least
            1 second (1e9), MUST be at least 100ms (100e6).

            android.sensor.info.maxFrameDuration must be greater or
            equal to the android.sensor.info.exposureTimeRange max
            value (since exposure time overrides frame duration).

            Available minimum frame durations for JPEG must be no greater
            than that of the YUV_420_888/IMPLEMENTATION_DEFINED
            minimum frame durations (for that respective size).

            Since JPEG processing is considered offline and can take longer than
            a single uncompressed capture, refer to
            android.scaler.availableStallDurations
            for details about encoding this scenario.
            </hal_details>
            <tag id="V1" />
          </entry>
          <entry name="physicalSize" type="float" visibility="public"
          type_notes="width x height"
          container="array" typedef="sizeF" hwlevel="legacy">
            <array>
              <size>2</size>
            </array>
            <description>The physical dimensions of the full pixel
            array.</description>
            <units>Millimeters</units>
            <details>This is the physical size of the sensor pixel
            array defined by android.sensor.info.pixelArraySize.
            </details>
            <hal_details>Needed for FOV calculation for old API</hal_details>
            <tag id="V1" />
            <tag id="BC" />
          </entry>
          <entry name="pixelArraySize" type="int32" visibility="public"
          container="array" typedef="size" hwlevel="legacy">
            <array>
              <size>2</size>
            </array>
            <description>Dimensions of the full pixel array, possibly
            including black calibration pixels.</description>
            <units>Pixels</units>
            <details>The pixel count of the full pixel array,
            which covers android.sensor.info.physicalSize area.

            If a camera device supports raw sensor formats, either this
            or android.sensor.info.activeArraySize is the maximum output
            raw size listed in android.scaler.streamConfigurationMap.
            If a size corresponding to pixelArraySize is listed, the resulting
            raw sensor image will include black pixels.

            Some parts of the full pixel array may not receive light from the scene,
            or are otherwise inactive.  The android.sensor.info.activeArraySize key
            defines the rectangle of active pixels that actually forms an image.
            </details>
            <tag id="RAW" />
            <tag id="BC" />
          </entry>
          <entry name="whiteLevel" type="int32" visibility="public">
            <description>
            Maximum raw value output by sensor.
            </description>
            <range>&amp;gt; 255 (8-bit output)</range>
            <details>
            This specifies the fully-saturated encoding level for the raw
            sample values from the sensor.  This is typically caused by the
            sensor becoming highly non-linear or clipping. The minimum for
            each channel is specified by the offset in the
            android.sensor.blackLevelPattern key.

            The white level is typically determined either by sensor bit depth
            (8-14 bits is expected), or by the point where the sensor response
            becomes too non-linear to be useful.  The default value for this is
            maximum representable value for a 16-bit raw sample (2^16 - 1).
            </details>
            <hal_details>
            The full bit depth of the sensor must be available in the raw data,
            so the value for linear sensors should not be significantly lower
            than maximum raw value supported, i.e. 2^(sensor bits per pixel).
            </hal_details>
            <tag id="RAW" />
          </entry>
          <entry name="timestampSource" type="byte" visibility="public"
                 enum="true" hwlevel="legacy">
            <enum>
              <value>UNKNOWN
                <notes>
                Timestamps from android.sensor.timestamp are in nanoseconds and monotonic,
                but can not be compared to timestamps from other subsystems
                (e.g. accelerometer, gyro etc.), or other instances of the same or different
                camera devices in the same system. Timestamps between streams and results for
                a single camera instance are comparable, and the timestamps for all buffers
                and the result metadata generated by a single capture are identical.
                </notes>
              </value>
              <value>REALTIME
                <notes>
                Timestamps from android.sensor.timestamp are in the same timebase as
                android.os.SystemClock#elapsedRealtimeNanos(),
                and they can be compared to other timestamps using that base.
                </notes>
              </value>
            </enum>
            <description>The time base source for sensor capture start timestamps.</description>
            <details>
            The timestamps provided for captures are always in nanoseconds and monotonic, but
            may not based on a time source that can be compared to other system time sources.

            This characteristic defines the source for the timestamps, and therefore whether they
            can be compared against other system time sources/timestamps.
            </details>
          <tag id="V1" />
        </entry>
        </namespace>
        <entry name="referenceIlluminant1" type="byte" visibility="public"
               enum="true">
          <enum>
            <value id="1">DAYLIGHT</value>
            <value id="2">FLUORESCENT</value>
            <value id="3">TUNGSTEN
              <notes>Incandescent light</notes>
            </value>
            <value id="4">FLASH</value>
            <value id="9">FINE_WEATHER</value>
            <value id="10">CLOUDY_WEATHER</value>
            <value id="11">SHADE</value>
            <value id="12">DAYLIGHT_FLUORESCENT
              <notes>D 5700 - 7100K</notes>
            </value>
            <value id="13">DAY_WHITE_FLUORESCENT
              <notes>N 4600 - 5400K</notes>
            </value>
            <value id="14">COOL_WHITE_FLUORESCENT
              <notes>W 3900 - 4500K</notes>
            </value>
            <value id="15">WHITE_FLUORESCENT
              <notes>WW 3200 - 3700K</notes>
            </value>
            <value id="17">STANDARD_A</value>
            <value id="18">STANDARD_B</value>
            <value id="19">STANDARD_C</value>
            <value id="20">D55</value>
            <value id="21">D65</value>
            <value id="22">D75</value>
            <value id="23">D50</value>
            <value id="24">ISO_STUDIO_TUNGSTEN</value>
          </enum>
          <description>
          The standard reference illuminant used as the scene light source when
          calculating the android.sensor.colorTransform1,
          android.sensor.calibrationTransform1, and
          android.sensor.forwardMatrix1 matrices.
          </description>
          <details>
          The values in this key correspond to the values defined for the
          EXIF LightSource tag. These illuminants are standard light sources
          that are often used calibrating camera devices.

          If this key is present, then android.sensor.colorTransform1,
          android.sensor.calibrationTransform1, and
          android.sensor.forwardMatrix1 will also be present.

          Some devices may choose to provide a second set of calibration
          information for improved quality, including
          android.sensor.referenceIlluminant2 and its corresponding matrices.
          </details>
          <hal_details>
          The first reference illuminant (android.sensor.referenceIlluminant1)
          and corresponding matrices must be present to support the RAW capability
          and DNG output.

          When producing raw images with a color profile that has only been
          calibrated against a single light source, it is valid to omit
          android.sensor.referenceIlluminant2 along with the
          android.sensor.colorTransform2, android.sensor.calibrationTransform2,
          and android.sensor.forwardMatrix2 matrices.

          If only android.sensor.referenceIlluminant1 is included, it should be
          chosen so that it is representative of typical scene lighting.  In
          general, D50 or DAYLIGHT will be chosen for this case.

          If both android.sensor.referenceIlluminant1 and
          android.sensor.referenceIlluminant2 are included, they should be
          chosen to represent the typical range of scene lighting conditions.
          In general, low color temperature illuminant such as Standard-A will
          be chosen for the first reference illuminant and a higher color
          temperature illuminant such as D65 will be chosen for the second
          reference illuminant.
          </hal_details>
          <tag id="RAW" />
        </entry>
        <entry name="referenceIlluminant2" type="byte" visibility="public">
          <description>
          The standard reference illuminant used as the scene light source when
          calculating the android.sensor.colorTransform2,
          android.sensor.calibrationTransform2, and
          android.sensor.forwardMatrix2 matrices.
          </description>
          <range>Any value listed in android.sensor.referenceIlluminant1</range>
          <details>
          See android.sensor.referenceIlluminant1 for more details.

          If this key is present, then android.sensor.colorTransform2,
          android.sensor.calibrationTransform2, and
          android.sensor.forwardMatrix2 will also be present.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="calibrationTransform1" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A per-device calibration transform matrix that maps from the
          reference sensor colorspace to the actual device sensor colorspace.
          </description>
          <details>
          This matrix is used to correct for per-device variations in the
          sensor colorspace, and is used for processing raw buffer data.

          The matrix is expressed as a 3x3 matrix in row-major-order, and
          contains a per-device calibration transform that maps colors
          from reference sensor color space (i.e. the "golden module"
          colorspace) into this camera device's native sensor color
          space under the first reference illuminant
          (android.sensor.referenceIlluminant1).
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="calibrationTransform2" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A per-device calibration transform matrix that maps from the
          reference sensor colorspace to the actual device sensor colorspace
          (this is the colorspace of the raw buffer data).
          </description>
          <details>
          This matrix is used to correct for per-device variations in the
          sensor colorspace, and is used for processing raw buffer data.

          The matrix is expressed as a 3x3 matrix in row-major-order, and
          contains a per-device calibration transform that maps colors
          from reference sensor color space (i.e. the "golden module"
          colorspace) into this camera device's native sensor color
          space under the second reference illuminant
          (android.sensor.referenceIlluminant2).

          This matrix will only be present if the second reference
          illuminant is present.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="colorTransform1" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A matrix that transforms color values from CIE XYZ color space to
          reference sensor color space.
          </description>
          <details>
          This matrix is used to convert from the standard CIE XYZ color
          space to the reference sensor colorspace, and is used when processing
          raw buffer data.

          The matrix is expressed as a 3x3 matrix in row-major-order, and
          contains a color transform matrix that maps colors from the CIE
          XYZ color space to the reference sensor color space (i.e. the
          "golden module" colorspace) under the first reference illuminant
          (android.sensor.referenceIlluminant1).

          The white points chosen in both the reference sensor color space
          and the CIE XYZ colorspace when calculating this transform will
          match the standard white point for the first reference illuminant
          (i.e. no chromatic adaptation will be applied by this transform).
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="colorTransform2" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A matrix that transforms color values from CIE XYZ color space to
          reference sensor color space.
          </description>
          <details>
          This matrix is used to convert from the standard CIE XYZ color
          space to the reference sensor colorspace, and is used when processing
          raw buffer data.

          The matrix is expressed as a 3x3 matrix in row-major-order, and
          contains a color transform matrix that maps colors from the CIE
          XYZ color space to the reference sensor color space (i.e. the
          "golden module" colorspace) under the second reference illuminant
          (android.sensor.referenceIlluminant2).

          The white points chosen in both the reference sensor color space
          and the CIE XYZ colorspace when calculating this transform will
          match the standard white point for the second reference illuminant
          (i.e. no chromatic adaptation will be applied by this transform).

          This matrix will only be present if the second reference
          illuminant is present.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="forwardMatrix1" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A matrix that transforms white balanced camera colors from the reference
          sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.
          </description>
          <details>
          This matrix is used to convert to the standard CIE XYZ colorspace, and
          is used when processing raw buffer data.

          This matrix is expressed as a 3x3 matrix in row-major-order, and contains
          a color transform matrix that maps white balanced colors from the
          reference sensor color space to the CIE XYZ color space with a D50 white
          point.

          Under the first reference illuminant (android.sensor.referenceIlluminant1)
          this matrix is chosen so that the standard white point for this reference
          illuminant in the reference sensor colorspace is mapped to D50 in the
          CIE XYZ colorspace.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="forwardMatrix2" type="rational"
        visibility="public" optional="true"
        type_notes="3x3 matrix in row-major-order" container="array"
        typedef="colorSpaceTransform">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>
          A matrix that transforms white balanced camera colors from the reference
          sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.
          </description>
          <details>
          This matrix is used to convert to the standard CIE XYZ colorspace, and
          is used when processing raw buffer data.

          This matrix is expressed as a 3x3 matrix in row-major-order, and contains
          a color transform matrix that maps white balanced colors from the
          reference sensor color space to the CIE XYZ color space with a D50 white
          point.

          Under the second reference illuminant (android.sensor.referenceIlluminant2)
          this matrix is chosen so that the standard white point for this reference
          illuminant in the reference sensor colorspace is mapped to D50 in the
          CIE XYZ colorspace.

          This matrix will only be present if the second reference
          illuminant is present.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="baseGainFactor" type="rational"
        optional="true">
          <description>Gain factor from electrons to raw units when
          ISO=100</description>
          <tag id="FUTURE" />
        </entry>
        <entry name="blackLevelPattern" type="int32" visibility="public"
        optional="true" type_notes="2x2 raw count block" container="array"
        typedef="blackLevelPattern">
          <array>
            <size>4</size>
          </array>
          <description>
          A fixed black level offset for each of the color filter arrangement
          (CFA) mosaic channels.
          </description>
          <range>&amp;gt;= 0 for each.</range>
          <details>
          This key specifies the zero light value for each of the CFA mosaic
          channels in the camera sensor.  The maximal value output by the
          sensor is represented by the value in android.sensor.info.whiteLevel.

          The values are given in the same order as channels listed for the CFA
          layout key (see android.sensor.info.colorFilterArrangement), i.e. the
          nth value given corresponds to the black level offset for the nth
          color channel listed in the CFA.
          </details>
          <hal_details>
          The values are given in row-column scan order, with the first value
          corresponding to the element of the CFA in row=0, column=0.
          </hal_details>
          <tag id="RAW" />
        </entry>
        <entry name="maxAnalogSensitivity" type="int32" visibility="public"
               optional="true" hwlevel="full">
          <description>Maximum sensitivity that is implemented
          purely through analog gain.</description>
          <details>For android.sensor.sensitivity values less than or
          equal to this, all applied gain must be analog. For
          values above this, the gain applied can be a mix of analog and
          digital.</details>
          <tag id="V1" />
          <tag id="FULL" />
        </entry>
        <entry name="orientation" type="int32" visibility="public"
               hwlevel="legacy">
          <description>Clockwise angle through which the output image needs to be rotated to be
          upright on the device screen in its native orientation.
          </description>
          <units>Degrees of clockwise rotation; always a multiple of
          90</units>
          <range>0, 90, 180, 270</range>
          <details>
          Also defines the direction of rolling shutter readout, which is from top to bottom in
          the sensor's coordinate system.
          </details>
          <tag id="BC" />
        </entry>
        <entry name="profileHueSatMapDimensions" type="int32"
        visibility="system" optional="true"
        type_notes="Number of samples for hue, saturation, and value"
        container="array">
          <array>
            <size>3</size>
          </array>
          <description>
          The number of input samples for each dimension of
          android.sensor.profileHueSatMap.
          </description>
          <range>
          Hue &amp;gt;= 1,
          Saturation &amp;gt;= 2,
          Value &amp;gt;= 1
          </range>
          <details>
          The number of input samples for the hue, saturation, and value
          dimension of android.sensor.profileHueSatMap. The order of the
          dimensions given is hue, saturation, value; where hue is the 0th
          element.
          </details>
          <tag id="RAW" />
        </entry>
      </static>
      <dynamic>
        <clone entry="android.sensor.exposureTime" kind="controls">
        </clone>
        <clone entry="android.sensor.frameDuration"
        kind="controls"></clone>
        <clone entry="android.sensor.sensitivity" kind="controls">
        </clone>
        <entry name="timestamp" type="int64" visibility="public"
               hwlevel="legacy">
          <description>Time at start of exposure of first
          row of the image sensor active array, in nanoseconds.</description>
          <units>Nanoseconds</units>
          <range>&amp;gt; 0</range>
          <details>The timestamps are also included in all image
          buffers produced for the same capture, and will be identical
          on all the outputs.

          When android.sensor.info.timestampSource `==` UNKNOWN,
          the timestamps measure time since an unspecified starting point,
          and are monotonically increasing. They can be compared with the
          timestamps for other captures from the same camera device, but are
          not guaranteed to be comparable to any other time source.

          When android.sensor.info.timestampSource `==` REALTIME,
          the timestamps measure time in the same timebase as
          android.os.SystemClock#elapsedRealtimeNanos(), and they can be
          compared to other timestamps from other subsystems that are using
          that base.
          </details>
          <hal_details>
          All timestamps must be in reference to the kernel's
          CLOCK_BOOTTIME monotonic clock, which properly accounts for
          time spent asleep. This allows for synchronization with
          sensors that continue to operate while the system is
          otherwise asleep.

          If android.sensor.info.timestampSource `==` REALTIME,
          The timestamp must be synchronized with the timestamps from other
          sensor subsystems that are using the same timebase.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="temperature" type="float"
        optional="true">
          <description>The temperature of the sensor, sampled at the time
          exposure began for this frame.

          The thermal diode being queried should be inside the sensor PCB, or
          somewhere close to it.
          </description>

          <units>Celsius</units>
          <range>Optional. This value is missing if no temperature is available.</range>
          <tag id="FUTURE" />
        </entry>
        <entry name="neutralColorPoint" type="rational" visibility="public"
        optional="true" container="array">
          <array>
            <size>3</size>
          </array>
          <description>
          The estimated camera neutral color in the native sensor colorspace at
          the time of capture.
          </description>
          <details>
          This value gives the neutral color point encoded as an RGB value in the
          native sensor color space.  The neutral color point indicates the
          currently estimated white point of the scene illumination.  It can be
          used to interpolate between the provided color transforms when
          processing raw sensor data.

          The order of the values is R, G, B; where R is in the lowest index.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="noiseProfile" type="double" visibility="public"
        optional="true" type_notes="Pairs of noise model coefficients"
        container="array" typedef="pairDoubleDouble">
          <array>
            <size>2</size>
            <size>CFA Channels</size>
          </array>
          <description>
          Noise model coefficients for each CFA mosaic channel.
          </description>
          <details>
          This key contains two noise model coefficients for each CFA channel
          corresponding to the sensor amplification (S) and sensor readout
          noise (O).  These are given as pairs of coefficients for each channel
          in the same order as channels listed for the CFA layout key
          (see android.sensor.info.colorFilterArrangement).  This is
          represented as an array of Pair&amp;lt;Double, Double&amp;gt;, where
          the first member of the Pair at index n is the S coefficient and the
          second member is the O coefficient for the nth color channel in the CFA.

          These coefficients are used in a two parameter noise model to describe
          the amount of noise present in the image for each CFA channel.  The
          noise model used here is:

          N(x) = sqrt(Sx + O)

          Where x represents the recorded signal of a CFA channel normalized to
          the range [0, 1], and S and O are the noise model coeffiecients for
          that channel.

          A more detailed description of the noise model can be found in the
          Adobe DNG specification for the NoiseProfile tag.
          </details>
          <hal_details>
          For a CFA layout of RGGB, the list of coefficients would be given as
          an array of doubles S0,O0,S1,O1,..., where S0 and O0 are the coefficients
          for the red channel, S1 and O1 are the coefficients for the first green
          channel, etc.
          </hal_details>
          <tag id="RAW" />
        </entry>
        <entry name="profileHueSatMap" type="float"
        visibility="system" optional="true"
        type_notes="Mapping for hue, saturation, and value"
        container="array">
          <array>
            <size>hue_samples</size>
            <size>saturation_samples</size>
            <size>value_samples</size>
            <size>3</size>
          </array>
          <description>
          A mapping containing a hue shift, saturation scale, and value scale
          for each pixel.
          </description>
          <units>
          The hue shift is given in degrees; saturation and value scale factors are
          unitless and are between 0 and 1 inclusive
          </units>
          <details>
          hue_samples, saturation_samples, and value_samples are given in
          android.sensor.profileHueSatMapDimensions.

          Each entry of this map contains three floats corresponding to the
          hue shift, saturation scale, and value scale, respectively; where the
          hue shift has the lowest index. The map entries are stored in the key
          in nested loop order, with the value divisions in the outer loop, the
          hue divisions in the middle loop, and the saturation divisions in the
          inner loop. All zero input saturation entries are required to have a
          value scale factor of 1.0.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="profileToneCurve" type="float"
        visibility="system" optional="true"
        type_notes="Samples defining a spline for a tone-mapping curve"
        container="array">
          <array>
            <size>samples</size>
            <size>2</size>
          </array>
          <description>
          A list of x,y samples defining a tone-mapping curve for gamma adjustment.
          </description>
          <range>
          Each sample has an input range of `[0, 1]` and an output range of
          `[0, 1]`.  The first sample is required to be `(0, 0)`, and the last
          sample is required to be `(1, 1)`.
          </range>
          <details>
          This key contains a default tone curve that can be applied while
          processing the image as a starting point for user adjustments.
          The curve is specified as a list of value pairs in linear gamma.
          The curve is interpolated using a cubic spline.
          </details>
          <tag id="RAW" />
        </entry>
        <entry name="greenSplit" type="float" visibility="public" optional="true">
          <description>
          The worst-case divergence between Bayer green channels.
          </description>
          <range>
          &amp;gt;= 0
          </range>
          <details>
          This value is an estimate of the worst case split between the
          Bayer green channels in the red and blue rows in the sensor color
          filter array.

          The green split is calculated as follows:

          1. A 5x5 pixel (or larger) window W within the active sensor array is
          chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
          mosaic channels (R, Gr, Gb, B).  The location and size of the window
          chosen is implementation defined, and should be chosen to provide a
          green split estimate that is both representative of the entire image
          for this camera sensor, and can be calculated quickly.
          1. The arithmetic mean of the green channels from the red
          rows (mean_Gr) within W is computed.
          1. The arithmetic mean of the green channels from the blue
          rows (mean_Gb) within W is computed.
          1. The maximum ratio R of the two means is computed as follows:
          `R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))`

          The ratio R is the green split divergence reported for this property,
          which represents how much the green channels differ in the mosaic
          pattern.  This value is typically used to determine the treatment of
          the green mosaic channels when demosaicing.

          The green split value can be roughly interpreted as follows:

          * R &amp;lt; 1.03 is a negligible split (&amp;lt;3% divergence).
          * 1.20 &amp;lt;= R &amp;gt;= 1.03 will require some software
          correction to avoid demosaic errors (3-20% divergence).
          * R &amp;gt; 1.20 will require strong software correction to produce
          a usuable image (&amp;gt;20% divergence).
          </details>
          <hal_details>
          The green split given may be a static value based on prior
          characterization of the camera sensor using the green split
          calculation method given here over a large, representative, sample
          set of images.  Other methods of calculation that produce equivalent
          results, and can be interpreted in the same manner, may be used.
          </hal_details>
          <tag id="RAW" />
        </entry>
      </dynamic>
      <controls>
        <entry name="testPatternData" type="int32" visibility="public" optional="true" container="array">
          <array>
            <size>4</size>
          </array>
          <description>
            A pixel `[R, G_even, G_odd, B]` that supplies the test pattern
            when android.sensor.testPatternMode is SOLID_COLOR.
          </description>
          <details>
          Each color channel is treated as an unsigned 32-bit integer.
          The camera device then uses the most significant X bits
          that correspond to how many bits are in its Bayer raw sensor
          output.

          For example, a sensor with RAW10 Bayer output would use the
          10 most significant bits from each color channel.
          </details>
          <hal_details>
          </hal_details>
        </entry>
        <entry name="testPatternMode" type="int32" visibility="public" optional="true"
          enum="true">
          <enum>
            <value>OFF
              <notes>No test pattern mode is used, and the camera
              device returns captures from the image sensor.

              This is the default if the key is not set.</notes>
            </value>
            <value>SOLID_COLOR
              <notes>
              Each pixel in `[R, G_even, G_odd, B]` is replaced by its
              respective color channel provided in
              android.sensor.testPatternData.

              For example:

                  android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]

              All green pixels are 100% green. All red/blue pixels are black.

                  android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]

              All red pixels are 100% red. Only the odd green pixels
              are 100% green. All blue pixels are 100% black.
              </notes>
            </value>
            <value>COLOR_BARS
              <notes>
              All pixel data is replaced with an 8-bar color pattern.

              The vertical bars (left-to-right) are as follows:

              * 100% white
              * yellow
              * cyan
              * green
              * magenta
              * red
              * blue
              * black

              In general the image would look like the following:

                 W Y C G M R B K
                 W Y C G M R B K
                 W Y C G M R B K
                 W Y C G M R B K
                 W Y C G M R B K
                 . . . . . . . .
                 . . . . . . . .
                 . . . . . . . .

                 (B = Blue, K = Black)

             Each bar should take up 1/8 of the sensor pixel array width.
             When this is not possible, the bar size should be rounded
             down to the nearest integer and the pattern can repeat
             on the right side.

             Each bar's height must always take up the full sensor
             pixel array height.

             Each pixel in this test pattern must be set to either
             0% intensity or 100% intensity.
             </notes>
            </value>
            <value>COLOR_BARS_FADE_TO_GRAY
              <notes>
              The test pattern is similar to COLOR_BARS, except that
              each bar should start at its specified color at the top,
              and fade to gray at the bottom.

              Furthermore each bar is further subdivided into a left and
              right half. The left half should have a smooth gradient,
              and the right half should have a quantized gradient.

              In particular, the right half's should consist of blocks of the
              same color for 1/16th active sensor pixel array width.

              The least significant bits in the quantized gradient should
              be copied from the most significant bits of the smooth gradient.

              The height of each bar should always be a multiple of 128.
              When this is not the case, the pattern should repeat at the bottom
              of the image.
              </notes>
            </value>
            <value>PN9
              <notes>
              All pixel data is replaced by a pseudo-random sequence
              generated from a PN9 512-bit sequence (typically implemented
              in hardware with a linear feedback shift register).

              The generator should be reset at the beginning of each frame,
              and thus each subsequent raw frame with this test pattern should
              be exactly the same as the last.
              </notes>
            </value>
            <value id="256">CUSTOM1
              <notes>The first custom test pattern. All custom patterns that are
              available only on this camera device are at least this numeric
              value.

              All of the custom test patterns will be static
              (that is the raw image must not vary from frame to frame).
              </notes>
            </value>
          </enum>
          <description>When enabled, the sensor sends a test pattern instead of
          doing a real exposure from the camera.
          </description>
          <range>android.sensor.availableTestPatternModes</range>
          <details>
          When a test pattern is enabled, all manual sensor controls specified
          by android.sensor.* will be ignored. All other controls should
          work as normal.

          For example, if manual flash is enabled, flash firing should still
          occur (and that the test pattern remain unmodified, since the flash
          would not actually affect it).

          Defaults to OFF.
          </details>
          <hal_details>
          All test patterns are specified in the Bayer domain.

          The HAL may choose to substitute test patterns from the sensor
          with test patterns from on-device memory. In that case, it should be
          indistinguishable to the ISP whether the data came from the
          sensor interconnect bus (such as CSI2) or memory.
          </hal_details>
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.sensor.testPatternData" kind="controls">
        </clone>
        <clone entry="android.sensor.testPatternMode" kind="controls">
        </clone>
      </dynamic>
      <static>
        <entry name="availableTestPatternModes" type="int32" visibility="public" optional="true"
          type_notes="list of enums" container="array">
          <array>
            <size>n</size>
          </array>
          <description>List of sensor test pattern modes for android.sensor.testPatternMode
          supported by this camera device.
          </description>
          <range>Any value listed in android.sensor.testPatternMode</range>
          <details>
            Defaults to OFF, and always includes OFF if defined.
          </details>
          <hal_details>
            All custom modes must be >= CUSTOM1.
          </hal_details>
        </entry>
      </static>
      <dynamic>
        <entry name="rollingShutterSkew" type="int64" visibility="public" hwlevel="limited">
          <description>Duration between the start of first row exposure
          and the start of last row exposure.</description>
          <units>Nanoseconds</units>
          <range> &amp;gt;= 0 and &amp;lt;
          StreamConfigurationMap#getOutputMinFrameDuration(int, Size).</range>
          <details>
          This is the exposure time skew between the first and last
          row exposure start times. The first row and the last row are
          the first and last rows inside of the
          android.sensor.info.activeArraySize.

          For typical camera sensors that use rolling shutters, this is also equivalent
          to the frame readout time.
          </details>
          <hal_details>
          The HAL must report `0` if the sensor is using global shutter, where all pixels begin
          exposure at the same time.
          </hal_details>
          <tag id="V1" />
        </entry>
      </dynamic>
    </section>
    <section name="shading">
      <controls>
        <entry name="mode" type="byte" visibility="public" enum="true" hwlevel="full">
          <enum>
            <value>OFF
            <notes>No lens shading correction is applied.</notes></value>
            <value>FAST
            <notes>Apply lens shading corrections, without slowing
            frame rate relative to sensor raw output</notes></value>
            <value>HIGH_QUALITY
            <notes>Apply high-quality lens shading correction, at the
            cost of reduced frame rate.</notes></value>
          </enum>
          <description>Quality of lens shading correction applied
          to the image data.</description>
          <details>
          When set to OFF mode, no lens shading correction will be applied by the
          camera device, and an identity lens shading map data will be provided
          if `android.statistics.lensShadingMapMode == ON`. For example, for lens
          shading map with size of `[ 4, 3 ]`,
          the output android.statistics.lensShadingCorrectionMap for this case will be an identity
          map shown below:

              [ 1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
               1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
               1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
               1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
               1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
               1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0 ]

          When set to other modes, lens shading correction will be applied by the camera
          device. Applications can request lens shading map data by setting
          android.statistics.lensShadingMapMode to ON, and then the camera device will provide lens
          shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
          data will be the one applied by the camera device for this capture request.

          The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
          the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
          AWB are in AUTO modes(android.control.aeMode `!=` OFF and android.control.awbMode `!=`
          OFF), to get best results, it is recommended that the applications wait for the AE and AWB
          to be converged before using the returned shading map data.
          </details>
        </entry>
        <entry name="strength" type="byte">
          <description>Control the amount of shading correction
          applied to the images</description>
          <units>unitless: 1-10; 10 is full shading
          compensation</units>
          <tag id="FUTURE" />
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.shading.mode" kind="controls">
        </clone>
      </dynamic>
    </section>
    <section name="statistics">
      <controls>
        <entry name="faceDetectMode" type="byte" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value>OFF
            <notes>Do not include face detection statistics in capture
            results.</notes></value>
            <value optional="true">SIMPLE
            <notes>Return face rectangle and confidence values only.
            </notes></value>
            <value optional="true">FULL
            <notes>Return all face
            metadata.

            In this mode, face rectangles, scores, landmarks, and face IDs are all valid.
            </notes></value>
          </enum>
          <description>Operating mode for the face detector
          unit.</description>
          <range>android.statistics.info.availableFaceDetectModes</range>
          <details>Whether face detection is enabled, and whether it
          should output just the basic fields or the full set of
          fields.</details>
          <hal_details>
            SIMPLE mode must fill in android.statistics.faceRectangles and
            android.statistics.faceScores.
            FULL mode must also fill in android.statistics.faceIds, and
            android.statistics.faceLandmarks.
          </hal_details>
          <tag id="BC" />
        </entry>
        <entry name="histogramMode" type="byte" enum="true" typedef="boolean">
          <enum>
            <value>OFF</value>
            <value>ON</value>
          </enum>
          <description>Operating mode for histogram
          generation</description>
          <tag id="FUTURE" />
        </entry>
        <entry name="sharpnessMapMode" type="byte" enum="true" typedef="boolean">
          <enum>
            <value>OFF</value>
            <value>ON</value>
          </enum>
          <description>Operating mode for sharpness map
          generation</description>
          <tag id="FUTURE" />
        </entry>
        <entry name="hotPixelMapMode" type="byte" visibility="public" enum="true"
        typedef="boolean">
          <enum>
            <value>OFF
            <notes>Hot pixel map production is disabled.
            </notes></value>
            <value>ON
            <notes>Hot pixel map production is enabled.
            </notes></value>
          </enum>
          <description>
          Operating mode for hot pixel map generation.
          </description>
          <range>android.statistics.info.availableHotPixelMapModes</range>
          <details>
          If set to `true`, a hot pixel map is returned in android.statistics.hotPixelMap.
          If set to `false`, no hot pixel map will be returned.
          </details>
          <tag id="V1" />
          <tag id="RAW" />
        </entry>
      </controls>
      <static>
        <namespace name="info">
          <entry name="availableFaceDetectModes" type="byte"
                 visibility="public"
                 type_notes="List of enums from android.statistics.faceDetectMode"
                 container="array"
                 typedef="enumList"
                 hwlevel="legacy">
            <array>
              <size>n</size>
            </array>
            <description>List of face detection modes for android.statistics.faceDetectMode that are
            supported by this camera device.
            </description>
            <range>Any value listed in android.statistics.faceDetectMode</range>
            <details>OFF is always supported.
            </details>
          </entry>
          <entry name="histogramBucketCount" type="int32">
            <description>Number of histogram buckets
            supported</description>
            <range>&amp;gt;= 64</range>
            <tag id="FUTURE" />
          </entry>
          <entry name="maxFaceCount" type="int32" visibility="public" hwlevel="legacy">
            <description>The maximum number of simultaneously detectable
            faces.</description>
            <range>0 for cameras without available face detection; otherwise:
            `&gt;=4` for LIMITED or FULL hwlevel devices or
            `&gt;0` for LEGACY devices.</range>
            <tag id="BC" />
          </entry>
          <entry name="maxHistogramCount" type="int32">
            <description>Maximum value possible for a histogram
            bucket</description>
            <tag id="FUTURE" />
          </entry>
          <entry name="maxSharpnessMapValue" type="int32">
            <description>Maximum value possible for a sharpness map
            region.</description>
            <tag id="FUTURE" />
          </entry>
          <entry name="sharpnessMapSize" type="int32"
          type_notes="width x height" container="array" typedef="size">
            <array>
              <size>2</size>
            </array>
            <description>Dimensions of the sharpness
            map</description>
            <range>Must be at least 32 x 32</range>
            <tag id="FUTURE" />
          </entry>
          <entry name="availableHotPixelMapModes" type="byte" visibility="public"
                 type_notes="list of enums" container="array" typedef="boolean">
            <array>
              <size>n</size>
            </array>
            <description>
            List of hot pixel map output modes for android.statistics.hotPixelMapMode that are
            supported by this camera device.
            </description>
            <range>Any value listed in android.statistics.hotPixelMapMode</range>
            <details>
            If no hotpixel map output is available for this camera device, this will contain only
            `false`.

            ON is always supported on devices with the RAW capability.
            </details>
            <tag id="V1" />
            <tag id="RAW" />
          </entry>
        </namespace>
      </static>
      <dynamic>
        <clone entry="android.statistics.faceDetectMode"
               kind="controls"></clone>
        <entry name="faceIds" type="int32" visibility="hidden" container="array"
               hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>List of unique IDs for detected faces.</description>
          <details>
          Each detected face is given a unique ID that is valid for as long as the face is visible
          to the camera device.  A face that leaves the field of view and later returns may be
          assigned a new ID.

          Only available if android.statistics.faceDetectMode == FULL</details>
          <tag id="BC" />
        </entry>
        <entry name="faceLandmarks" type="int32" visibility="hidden"
        type_notes="(leftEyeX, leftEyeY, rightEyeX, rightEyeY, mouthX, mouthY)"
        container="array" hwlevel="legacy">
          <array>
            <size>n</size>
            <size>6</size>
          </array>
          <description>List of landmarks for detected
          faces.</description>
          <details>
            The coordinate system is that of android.sensor.info.activeArraySize, with
            `(0, 0)` being the top-left pixel of the active array.

            Only available if android.statistics.faceDetectMode == FULL</details>
          <tag id="BC" />
        </entry>
        <entry name="faceRectangles" type="int32" visibility="hidden"
        type_notes="(xmin, ymin, xmax, ymax). (0,0) is top-left of active pixel area"
        container="array" typedef="rectangle" hwlevel="legacy">
          <array>
            <size>n</size>
            <size>4</size>
          </array>
          <description>List of the bounding rectangles for detected
          faces.</description>
          <details>
            The coordinate system is that of android.sensor.info.activeArraySize, with
            `(0, 0)` being the top-left pixel of the active array.

            Only available if android.statistics.faceDetectMode != OFF</details>
          <tag id="BC" />
        </entry>
        <entry name="faceScores" type="byte" visibility="hidden" container="array"
               hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>List of the face confidence scores for
          detected faces</description>
          <range>1-100</range>
          <details>Only available if android.statistics.faceDetectMode != OFF.
          </details>
          <hal_details>
          The value should be meaningful (for example, setting 100 at
          all times is illegal).</hal_details>
          <tag id="BC" />
        </entry>
        <entry name="faces" type="int32" visibility="public" synthetic="true"
               container="array" typedef="face" hwlevel="legacy">
          <array>
            <size>n</size>
          </array>
          <description>List of the faces detected through camera face detection
          in this capture.</description>
          <details>
          Only available if android.statistics.faceDetectMode `!=` OFF.
          </details>
        </entry>
        <entry name="histogram" type="int32"
        type_notes="count of pixels for each color channel that fall into each histogram bucket, scaled to be between 0 and maxHistogramCount"
        container="array">
          <array>
            <size>n</size>
            <size>3</size>
          </array>
          <description>A 3-channel histogram based on the raw
          sensor data</description>
          <details>The k'th bucket (0-based) covers the input range
          (with w = android.sensor.info.whiteLevel) of [ k * w/N,
          (k + 1) * w / N ). If only a monochrome sharpness map is
          supported, all channels should have the same data</details>
          <tag id="FUTURE" />
        </entry>
        <clone entry="android.statistics.histogramMode"
        kind="controls"></clone>
        <entry name="sharpnessMap" type="int32"
        type_notes="estimated sharpness for each region of the input image. Normalized to be between 0 and maxSharpnessMapValue. Higher values mean sharper (better focused)"
        container="array">
          <array>
            <size>n</size>
            <size>m</size>
            <size>3</size>
          </array>
          <description>A 3-channel sharpness map, based on the raw
          sensor data</description>
          <details>If only a monochrome sharpness map is supported,
          all channels should have the same data</details>
          <tag id="FUTURE" />
        </entry>
        <clone entry="android.statistics.sharpnessMapMode"
               kind="controls"></clone>
        <entry name="lensShadingCorrectionMap" type="byte" visibility="public"
               typedef="lensShadingMap" hwlevel="full">
          <description>The shading map is a low-resolution floating-point map
          that lists the coefficients used to correct for vignetting, for each
          Bayer color channel.</description>
          <range>Each gain factor is &amp;gt;= 1</range>
          <details>The least shaded section of the image should have a gain factor
          of 1; all other sections should have gains above 1.

          When android.colorCorrection.mode = TRANSFORM_MATRIX, the map
          must take into account the colorCorrection settings.

          The shading map is for the entire active pixel array, and is not
          affected by the crop region specified in the request. Each shading map
          entry is the value of the shading compensation map over a specific
          pixel on the sensor.  Specifically, with a (N x M) resolution shading
          map, and an active pixel array size (W x H), shading map entry
          (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
          pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
          The map is assumed to be bilinearly interpolated between the sample points.

          The channel order is [R, Geven, Godd, B], where Geven is the green
          channel for the even rows of a Bayer pattern, and Godd is the odd rows.
          The shading map is stored in a fully interleaved format.

          The shading map should have on the order of 30-40 rows and columns,
          and must be smaller than 64x64.

          As an example, given a very small map defined as:

              width,height = [ 4, 3 ]
              values =
              [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
                  1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
                1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
                  1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
                1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
                  1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]

          The low-resolution scaling map images for each channel are
          (displayed using nearest-neighbor interpolation):

          ![Red lens shading map](android.statistics.lensShadingMap/red_shading.png)
          ![Green (even rows) lens shading map](android.statistics.lensShadingMap/green_e_shading.png)
          ![Green (odd rows) lens shading map](android.statistics.lensShadingMap/green_o_shading.png)
          ![Blue lens shading map](android.statistics.lensShadingMap/blue_shading.png)

          As a visualization only, inverting the full-color map to recover an
          image of a gray wall (using bicubic interpolation for visual quality) as captured by the sensor gives:

          ![Image of a uniform white wall (inverse shading map)](android.statistics.lensShadingMap/inv_shading.png)
          </details>
        </entry>
        <entry name="lensShadingMap" type="float" visibility="hidden"
               type_notes="2D array of float gain factors per channel to correct lens shading"
               container="array" hwlevel="full">
          <array>
            <size>4</size>
            <size>n</size>
            <size>m</size>
          </array>
          <description>The shading map is a low-resolution floating-point map
          that lists the coefficients used to correct for vignetting, for each
          Bayer color channel.</description>
          <range>Each gain factor is &amp;gt;= 1</range>
          <details>The least shaded section of the image should have a gain factor
          of 1; all other sections should have gains above 1.

          When android.colorCorrection.mode = TRANSFORM_MATRIX, the map
          must take into account the colorCorrection settings.

          The shading map is for the entire active pixel array, and is not
          affected by the crop region specified in the request. Each shading map
          entry is the value of the shading compensation map over a specific
          pixel on the sensor.  Specifically, with a (N x M) resolution shading
          map, and an active pixel array size (W x H), shading map entry
          (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
          pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
          The map is assumed to be bilinearly interpolated between the sample points.

          The channel order is [R, Geven, Godd, B], where Geven is the green
          channel for the even rows of a Bayer pattern, and Godd is the odd rows.
          The shading map is stored in a fully interleaved format, and its size
          is provided in the camera static metadata by android.lens.info.shadingMapSize.

          The shading map should have on the order of 30-40 rows and columns,
          and must be smaller than 64x64.

          As an example, given a very small map defined as:

              android.lens.info.shadingMapSize = [ 4, 3 ]
              android.statistics.lensShadingMap =
              [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
                  1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
                1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
                  1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
                1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
                  1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]

          The low-resolution scaling map images for each channel are
          (displayed using nearest-neighbor interpolation):

          ![Red lens shading map](android.statistics.lensShadingMap/red_shading.png)
          ![Green (even rows) lens shading map](android.statistics.lensShadingMap/green_e_shading.png)
          ![Green (odd rows) lens shading map](android.statistics.lensShadingMap/green_o_shading.png)
          ![Blue lens shading map](android.statistics.lensShadingMap/blue_shading.png)

          As a visualization only, inverting the full-color map to recover an
          image of a gray wall (using bicubic interpolation for visual quality) as captured by the sensor gives:

          ![Image of a uniform white wall (inverse shading map)](android.statistics.lensShadingMap/inv_shading.png)
          </details>
          <hal_details>
          The lens shading map calculation may depend on exposure and white balance statistics.
          When AE and AWB are in AUTO modes
          (android.control.aeMode `!=` OFF and android.control.awbMode `!=` OFF), the HAL
          may have all the information it need to generate most accurate lens shading map. When
          AE or AWB are in manual mode
          (android.control.aeMode `==` OFF or android.control.awbMode `==` OFF), the shading map
          may be adversely impacted by manual exposure or white balance parameters. To avoid
          generating unreliable shading map data, the HAL may choose to lock the shading map with
          the latest known good map generated when the AE and AWB are in AUTO modes.
          </hal_details>
        </entry>
        <entry name="predictedColorGains" type="float"
               visibility="hidden"
               deprecated="true"
               optional="true"
               type_notes="A 1D array of floats for 4 color channel gains"
               container="array">
          <array>
            <size>4</size>
          </array>
          <description>The best-fit color channel gains calculated
          by the camera device's statistics units for the current output frame.
          </description>
          <details>
          This may be different than the gains used for this frame,
          since statistics processing on data from a new frame
          typically completes after the transform has already been
          applied to that frame.

          The 4 channel gains are defined in Bayer domain,
          see android.colorCorrection.gains for details.

          This value should always be calculated by the auto-white balance (AWB) block,
          regardless of the android.control.* current values.
          </details>
        </entry>
        <entry name="predictedColorTransform" type="rational"
               visibility="hidden"
               deprecated="true"
               optional="true"
               type_notes="3x3 rational matrix in row-major order"
               container="array">
          <array>
            <size>3</size>
            <size>3</size>
          </array>
          <description>The best-fit color transform matrix estimate
          calculated by the camera device's statistics units for the current
          output frame.</description>
          <details>The camera device will provide the estimate from its
          statistics unit on the white balance transforms to use
          for the next frame. These are the values the camera device believes
          are the best fit for the current output frame. This may
          be different than the transform used for this frame, since
          statistics processing on data from a new frame typically
          completes after the transform has already been applied to
          that frame.

          These estimates must be provided for all frames, even if
          capture settings and color transforms are set by the application.

          This value should always be calculated by the auto-white balance (AWB) block,
          regardless of the android.control.* current values.
          </details>
        </entry>
        <entry name="sceneFlicker" type="byte" visibility="public" enum="true"
               hwlevel="full">
          <enum>
            <value>NONE
            <notes>The camera device does not detect any flickering illumination
            in the current scene.</notes></value>
            <value>50HZ
            <notes>The camera device detects illumination flickering at 50Hz
            in the current scene.</notes></value>
            <value>60HZ
            <notes>The camera device detects illumination flickering at 60Hz
            in the current scene.</notes></value>
          </enum>
          <description>The camera device estimated scene illumination lighting
          frequency.</description>
          <details>
          Many light sources, such as most fluorescent lights, flicker at a rate
          that depends on the local utility power standards. This flicker must be
          accounted for by auto-exposure routines to avoid artifacts in captured images.
          The camera device uses this entry to tell the application what the scene
          illuminant frequency is.

          When manual exposure control is enabled
          (`android.control.aeMode == OFF` or `android.control.mode ==
          OFF`), the android.control.aeAntibandingMode doesn't perform
          antibanding, and the application can ensure it selects
          exposure times that do not cause banding issues by looking
          into this metadata field. See
          android.control.aeAntibandingMode for more details.

          Reports NONE if there doesn't appear to be flickering illumination.
          </details>
        </entry>
        <clone entry="android.statistics.hotPixelMapMode" kind="controls">
        </clone>
        <entry name="hotPixelMap" type="int32" visibility="public"
        type_notes="list of coordinates based on android.sensor.pixelArraySize"
        container="array" typedef="point">
          <array>
            <size>2</size>
            <size>n</size>
          </array>
          <description>
          List of `(x, y)` coordinates of hot/defective pixels on the sensor.
          </description>
          <range>
          n &lt;= number of pixels on the sensor.
          The `(x, y)` coordinates must be bounded by
          android.sensor.info.pixelArraySize.
          </range>
          <details>
          A coordinate `(x, y)` must lie between `(0, 0)`, and
          `(width - 1, height - 1)` (inclusive), which are the top-left and
          bottom-right of the pixel array, respectively. The width and
          height dimensions are given in android.sensor.info.pixelArraySize.
          This may include hot pixels that lie outside of the active array
          bounds given by android.sensor.info.activeArraySize.
          </details>
          <hal_details>
          A hotpixel map contains the coordinates of pixels on the camera
          sensor that do report valid values (usually due to defects in
          the camera sensor). This includes pixels that are stuck at certain
          values, or have a response that does not accuractly encode the
          incoming light from the scene.

          To avoid performance issues, there should be significantly fewer hot
          pixels than actual pixels on the camera sensor.
          </hal_details>
          <tag id="V1" />
          <tag id="RAW" />
        </entry>
      </dynamic>
      <controls>
        <entry name="lensShadingMapMode" type="byte" visibility="public" enum="true" hwlevel="full">
          <enum>
            <value>OFF
            <notes>Do not include a lens shading map in the capture result.</notes></value>
            <value>ON
            <notes>Include a lens shading map in the capture result.</notes></value>
          </enum>
          <description>Whether the camera device will output the lens
          shading map in output result metadata.</description>
          <details>When set to ON,
          android.statistics.lensShadingMap will be provided in
          the output result metadata.

          ON is always supported on devices with the RAW capability.
          </details>
          <tag id="RAW" />
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.statistics.lensShadingMapMode" kind="controls">
        </clone>
      </dynamic>
    </section>
    <section name="tonemap">
      <controls>
        <entry name="curveBlue" type="float" visibility="hidden"
        type_notes="1D array of float pairs (P_IN, P_OUT). The maximum number of pairs is specified by android.tonemap.maxCurvePoints."
        container="array" hwlevel="full">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>Tonemapping / contrast / gamma curve for the blue
          channel, to use when android.tonemap.mode is
          CONTRAST_CURVE.</description>
          <details>See android.tonemap.curveRed for more details.</details>
        </entry>
        <entry name="curveGreen" type="float" visibility="hidden"
        type_notes="1D array of float pairs (P_IN, P_OUT). The maximum number of pairs is specified by android.tonemap.maxCurvePoints."
        container="array" hwlevel="full">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>Tonemapping / contrast / gamma curve for the green
          channel, to use when android.tonemap.mode is
          CONTRAST_CURVE.</description>
          <details>See android.tonemap.curveRed for more details.</details>
        </entry>
        <entry name="curveRed" type="float" visibility="hidden"
        type_notes="1D array of float pairs (P_IN, P_OUT). The maximum number of pairs is specified by android.tonemap.maxCurvePoints."
        container="array" hwlevel="full">
          <array>
            <size>n</size>
            <size>2</size>
          </array>
          <description>Tonemapping / contrast / gamma curve for the red
          channel, to use when android.tonemap.mode is
          CONTRAST_CURVE.</description>
          <range>0-1 on both input and output coordinates, normalized
          as a floating-point value such that 0 == black and 1 == white.
          </range>
          <details>
          Each channel's curve is defined by an array of control points:

              android.tonemap.curveRed =
                [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
              2 &lt;= N &lt;= android.tonemap.maxCurvePoints

          These are sorted in order of increasing `Pin`; it is
          required that input values 0.0 and 1.0 are included in the list to
          define a complete mapping. For input values between control points,
          the camera device must linearly interpolate between the control
          points.

          Each curve can have an independent number of points, and the number
          of points can be less than max (that is, the request doesn't have to
          always provide a curve with number of points equivalent to
          android.tonemap.maxCurvePoints).

          A few examples, and their corresponding graphical mappings; these
          only specify the red channel and the precision is limited to 4
          digits, for conciseness.

          Linear mapping:

              android.tonemap.curveRed = [ 0, 0, 1.0, 1.0 ]

          ![Linear mapping curve](android.tonemap.curveRed/linear_tonemap.png)

          Invert mapping:

              android.tonemap.curveRed = [ 0, 1.0, 1.0, 0 ]

          ![Inverting mapping curve](android.tonemap.curveRed/inverse_tonemap.png)

          Gamma 1/2.2 mapping, with 16 control points:

              android.tonemap.curveRed = [
                0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
                0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
                0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
                0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]

          ![Gamma = 1/2.2 tonemapping curve](android.tonemap.curveRed/gamma_tonemap.png)

          Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:

              android.tonemap.curveRed = [
                0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
                0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
                0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
                0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]

          ![sRGB tonemapping curve](android.tonemap.curveRed/srgb_tonemap.png)
        </details>
        <hal_details>
          For good quality of mapping, at least 128 control points are
          preferred.

          A typical use case of this would be a gamma-1/2.2 curve, with as many
          control points used as are available.
        </hal_details>
        </entry>
        <entry name="curve" type="float" visibility="public" synthetic="true"
               typedef="tonemapCurve"
               hwlevel="full">
          <description>Tonemapping / contrast / gamma curve to use when android.tonemap.mode
          is CONTRAST_CURVE.</description>
          <details>
          The tonemapCurve consist of three curves for each of red, green, and blue
          channels respectively. The following example uses the red channel as an
          example. The same logic applies to green and blue channel.
          Each channel's curve is defined by an array of control points:

              curveRed =
                [ P0(in, out), P1(in, out), P2(in, out), P3(in, out), ..., PN(in, out) ]
              2 &lt;= N &lt;= android.tonemap.maxCurvePoints

          These are sorted in order of increasing `Pin`; it is always
          guaranteed that input values 0.0 and 1.0 are included in the list to
          define a complete mapping. For input values between control points,
          the camera device must linearly interpolate between the control
          points.

          Each curve can have an independent number of points, and the number
          of points can be less than max (that is, the request doesn't have to
          always provide a curve with number of points equivalent to
          android.tonemap.maxCurvePoints).

          A few examples, and their corresponding graphical mappings; these
          only specify the red channel and the precision is limited to 4
          digits, for conciseness.

          Linear mapping:

              curveRed = [ (0, 0), (1.0, 1.0) ]

          ![Linear mapping curve](android.tonemap.curveRed/linear_tonemap.png)

          Invert mapping:

              curveRed = [ (0, 1.0), (1.0, 0) ]

          ![Inverting mapping curve](android.tonemap.curveRed/inverse_tonemap.png)

          Gamma 1/2.2 mapping, with 16 control points:

              curveRed = [
                (0.0000, 0.0000), (0.0667, 0.2920), (0.1333, 0.4002), (0.2000, 0.4812),
                (0.2667, 0.5484), (0.3333, 0.6069), (0.4000, 0.6594), (0.4667, 0.7072),
                (0.5333, 0.7515), (0.6000, 0.7928), (0.6667, 0.8317), (0.7333, 0.8685),
                (0.8000, 0.9035), (0.8667, 0.9370), (0.9333, 0.9691), (1.0000, 1.0000) ]

          ![Gamma = 1/2.2 tonemapping curve](android.tonemap.curveRed/gamma_tonemap.png)

          Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:

              curveRed = [
                (0.0000, 0.0000), (0.0667, 0.2864), (0.1333, 0.4007), (0.2000, 0.4845),
                (0.2667, 0.5532), (0.3333, 0.6125), (0.4000, 0.6652), (0.4667, 0.7130),
                (0.5333, 0.7569), (0.6000, 0.7977), (0.6667, 0.8360), (0.7333, 0.8721),
                (0.8000, 0.9063), (0.8667, 0.9389), (0.9333, 0.9701), (1.0000, 1.0000) ]

          ![sRGB tonemapping curve](android.tonemap.curveRed/srgb_tonemap.png)
        </details>
        <hal_details>
            This entry is created by the framework from the curveRed, curveGreen and
            curveBlue entries.
        </hal_details>
        </entry>
        <entry name="mode" type="byte" visibility="public" enum="true"
               hwlevel="full">
          <enum>
            <value>CONTRAST_CURVE
              <notes>Use the tone mapping curve specified in
              the android.tonemap.curve* entries.

              All color enhancement and tonemapping must be disabled, except
              for applying the tonemapping curve specified by
              android.tonemap.curve.

              Must not slow down frame rate relative to raw
              sensor output.
              </notes>
            </value>
            <value>FAST
              <notes>
              Advanced gamma mapping and color enhancement may be applied, without
              reducing frame rate compared to raw sensor output.
              </notes>
            </value>
            <value>HIGH_QUALITY
              <notes>
              High-quality gamma mapping and color enhancement will be applied, at
              the cost of reduced frame rate compared to raw sensor output.
              </notes>
            </value>
          </enum>
          <description>High-level global contrast/gamma/tonemapping control.
          </description>
          <range>android.tonemap.availableToneMapModes</range>
          <details>
          When switching to an application-defined contrast curve by setting
          android.tonemap.mode to CONTRAST_CURVE, the curve is defined
          per-channel with a set of `(in, out)` points that specify the
          mapping from input high-bit-depth pixel value to the output
          low-bit-depth value.  Since the actual pixel ranges of both input
          and output may change depending on the camera pipeline, the values
          are specified by normalized floating-point numbers.

          More-complex color mapping operations such as 3D color look-up
          tables, selective chroma enhancement, or other non-linear color
          transforms will be disabled when android.tonemap.mode is
          CONTRAST_CURVE.

          When using either FAST or HIGH_QUALITY, the camera device will
          emit its own tonemap curve in android.tonemap.curve.
          These values are always available, and as close as possible to the
          actually used nonlinear/nonglobal transforms.

          If a request is sent with CONTRAST_CURVE with the camera device's
          provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
          roughly the same.</details>
        </entry>
      </controls>
      <static>
        <entry name="maxCurvePoints" type="int32" visibility="public"
               hwlevel="full">
          <description>Maximum number of supported points in the
            tonemap curve that can be used for android.tonemap.curve.
          </description>
          <details>
          If the actual number of points provided by the application (in android.tonemap.curve*) is
          less than this maximum, the camera device will resample the curve to its internal
          representation, using linear interpolation.

          The output curves in the result metadata may have a different number
          of points than the input curves, and will represent the actual
          hardware curves used as closely as possible when linearly interpolated.
          </details>
          <hal_details>
          This value must be at least 64. This should be at least 128.
          </hal_details>
        </entry>
        <entry name="availableToneMapModes" type="byte" visibility="public"
        type_notes="list of enums" container="array" typedef="enumList" hwlevel="full">
          <array>
            <size>n</size>
          </array>
          <description>
          List of tonemapping modes for android.tonemap.mode that are supported by this camera
          device.
          </description>
          <range>Any value listed in android.tonemap.mode</range>
          <details>
          Camera devices that support the MANUAL_POST_PROCESSING capability will always list
          CONTRAST_CURVE and FAST. This includes all FULL level devices.
          </details>
        </entry>
      </static>
      <dynamic>
        <clone entry="android.tonemap.curveBlue" kind="controls">
        </clone>
        <clone entry="android.tonemap.curveGreen" kind="controls">
        </clone>
        <clone entry="android.tonemap.curveRed" kind="controls">
        </clone>
        <clone entry="android.tonemap.curve" kind="controls">
        </clone>
        <clone entry="android.tonemap.mode" kind="controls">
        </clone>
      </dynamic>
    </section>
    <section name="led">
      <controls>
        <entry name="transmit" type="byte" visibility="hidden" optional="true"
               enum="true" typedef="boolean">
          <enum>
            <value>OFF</value>
            <value>ON</value>
          </enum>
          <description>This LED is nominally used to indicate to the user
          that the camera is powered on and may be streaming images back to the
          Application Processor. In certain rare circumstances, the OS may
          disable this when video is processed locally and not transmitted to
          any untrusted applications.

          In particular, the LED *must* always be on when the data could be
          transmitted off the device. The LED *should* always be on whenever
          data is stored locally on the device.

          The LED *may* be off if a trusted application is using the data that
          doesn't violate the above rules.
          </description>
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.led.transmit" kind="controls"></clone>
      </dynamic>
      <static>
        <entry name="availableLeds" type="byte" visibility="hidden" optional="true"
               enum="true"
               container="array">
          <array>
            <size>n</size>
          </array>
          <enum>
            <value>TRANSMIT
              <notes>android.led.transmit control is used.</notes>
            </value>
          </enum>
          <description>A list of camera LEDs that are available on this system.
          </description>
        </entry>
      </static>
    </section>
    <section name="info">
      <static>
        <entry name="supportedHardwareLevel" type="byte" visibility="public"
               enum="true" hwlevel="legacy">
          <enum>
            <value>
              LIMITED
              <notes>
              This camera device has only limited capabilities.
              </notes>
            </value>
            <value>
              FULL
              <notes>
              This camera device is capable of supporting advanced imaging applications.
              </notes>
            </value>
            <value>
              LEGACY
              <notes>
              This camera device is running in backward compatibility mode.
              </notes>
            </value>
          </enum>
          <description>
          Generally classifies the overall set of the camera device functionality.
          </description>
          <details>
          Camera devices will come in three flavors: LEGACY, LIMITED and FULL.

          A FULL device will support below capabilities:

          * 30fps at maximum resolution (== sensor resolution) is preferred, more than 20fps is required.
          * Per frame control (android.sync.maxLatency `==` PER_FRAME_CONTROL)
          * Manual sensor control (android.request.availableCapabilities contains MANUAL_SENSOR)
          * Manual post-processing control (android.request.availableCapabilities contains MANUAL_POST_PROCESSING)
          * Arbitrary cropping region (android.scaler.croppingType `==` FREEFORM)
          * At least 3 processed (but not stalling) format output streams (android.request.maxNumOutputProc `&gt;=` 3)
          * The required stream configuration defined in android.scaler.availableStreamConfigurations
          * The required exposure time range defined in android.sensor.info.exposureTimeRange
          * The required maxFrameDuration defined in android.sensor.info.maxFrameDuration

          A LIMITED device may have some or none of the above characteristics.
          To find out more refer to android.request.availableCapabilities.

          Some features are not part of any particular hardware level or capability and must be
          queried separately. These include:

          * Calibrated timestamps (android.sensor.info.timestampSource `==` REALTIME)
          * Precision lens control (android.lens.info.focusDistanceCalibration `==` CALIBRATED)
          * Face detection (android.statistics.info.availableFaceDetectModes)
          * Optical or electrical image stabilization
            (android.lens.info.availableOpticalStabilization,
             android.control.availableVideoStabilizationModes)

          A LEGACY device does not support per-frame control, manual sensor control, manual
          post-processing, arbitrary cropping regions, and has relaxed performance constraints.

          Each higher level supports everything the lower level supports
          in this order: FULL `&gt;` LIMITED `&gt;` LEGACY.
          </details>
          <hal_details>
          The camera 3 HAL device can implement one of two possible
          operational modes; limited and full. Full support is
          expected from new higher-end devices. Limited mode has
          hardware requirements roughly in line with those for a
          camera HAL device v1 implementation, and is expected from
          older or inexpensive devices. Full is a strict superset of
          limited, and they share the same essential operational flow.

          For full details refer to "S3. Operational Modes" in camera3.h

          Camera HAL3+ must not implement LEGACY mode. It is there
          for backwards compatibility in the `android.hardware.camera2`
          user-facing API only.
          </hal_details>
        </entry>
      </static>
    </section>
    <section name="blackLevel">
      <controls>
        <entry name="lock" type="byte" visibility="public" enum="true"
               typedef="boolean" hwlevel="full">
          <enum>
            <value>OFF</value>
            <value>ON</value>
          </enum>
          <description> Whether black-level compensation is locked
          to its current values, or is free to vary.</description>
          <details>When set to `true` (ON), the values used for black-level
          compensation will not change until the lock is set to
          `false` (OFF).

          Since changes to certain capture parameters (such as
          exposure time) may require resetting of black level
          compensation, the camera device must report whether setting
          the black level lock was successful in the output result
          metadata.

          For example, if a sequence of requests is as follows:

          * Request 1: Exposure = 10ms, Black level lock = OFF
          * Request 2: Exposure = 10ms, Black level lock = ON
          * Request 3: Exposure = 10ms, Black level lock = ON
          * Request 4: Exposure = 20ms, Black level lock = ON
          * Request 5: Exposure = 20ms, Black level lock = ON
          * Request 6: Exposure = 20ms, Black level lock = ON

          And the exposure change in Request 4 requires the camera
          device to reset the black level offsets, then the output
          result metadata is expected to be:

          * Result 1: Exposure = 10ms, Black level lock = OFF
          * Result 2: Exposure = 10ms, Black level lock = ON
          * Result 3: Exposure = 10ms, Black level lock = ON
          * Result 4: Exposure = 20ms, Black level lock = OFF
          * Result 5: Exposure = 20ms, Black level lock = ON
          * Result 6: Exposure = 20ms, Black level lock = ON

          This indicates to the application that on frame 4, black
          levels were reset due to exposure value changes, and pixel
          values may not be consistent across captures.

          The camera device will maintain the lock to the extent
          possible, only overriding the lock to OFF when changes to
          other request parameters require a black level recalculation
          or reset.
          </details>
          <hal_details>
          If for some reason black level locking is no longer possible
          (for example, the analog gain has changed, which forces
          black level offsets to be recalculated), then the HAL must
          override this request (and it must report 'OFF' when this
          does happen) until the next capture for which locking is
          possible again.</hal_details>
          <tag id="HAL2" />
        </entry>
      </controls>
      <dynamic>
        <clone entry="android.blackLevel.lock"
          kind="controls">
          <details>
            Whether the black level offset was locked for this frame.  Should be
            ON if android.blackLevel.lock was ON in the capture request, unless
            a change in other capture settings forced the camera device to
            perform a black level reset.
          </details>
        </clone>
      </dynamic>
    </section>
    <section name="sync">
      <dynamic>
        <entry name="frameNumber" type="int64" visibility="hidden" enum="true"
               hwlevel="legacy">
          <enum>
            <value id="-1">CONVERGING
              <notes>
              The current result is not yet fully synchronized to any request.

              Synchronization is in progress, and reading metadata from this
              result may include a mix of data that have taken effect since the
              last synchronization time.

              In some future result, within android.sync.maxLatency frames,
              this value will update to the actual frame number frame number
              the result is guaranteed to be synchronized to (as long as the
              request settings remain constant).
            </notes>
            </value>
            <value id="-2">UNKNOWN
              <notes>
              The current result's synchronization status is unknown.

              The result may have already converged, or it may be in
              progress.  Reading from this result may include some mix
              of settings from past requests.

              After a settings change, the new settings will eventually all
              take effect for the output buffers and results. However, this
              value will not change when that happens. Altering settings
              rapidly may provide outcomes using mixes of settings from recent
              requests.

              This value is intended primarily for backwards compatibility with
              the older camera implementations (for android.hardware.Camera).
            </notes>
            </value>
          </enum>
          <description>The frame number corresponding to the last request
          with which the output result (metadata + buffers) has been fully
          synchronized.</description>
          <range>Either a non-negative value corresponding to a
          `frame_number`, or one of the two enums (CONVERGING / UNKNOWN).
          </range>
          <details>
          When a request is submitted to the camera device, there is usually a
          delay of several frames before the controls get applied. A camera
          device may either choose to account for this delay by implementing a
          pipeline and carefully submit well-timed atomic control updates, or
          it may start streaming control changes that span over several frame
          boundaries.

          In the latter case, whenever a request's settings change relative to
          the previous submitted request, the full set of changes may take
          multiple frame durations to fully take effect. Some settings may
          take effect sooner (in less frame durations) than others.

          While a set of control changes are being propagated, this value
          will be CONVERGING.

          Once it is fully known that a set of control changes have been
          finished propagating, and the resulting updated control settings
          have been read back by the camera device, this value will be set
          to a non-negative frame number (corresponding to the request to
          which the results have synchronized to).

          Older camera device implementations may not have a way to detect
          when all camera controls have been applied, and will always set this
          value to UNKNOWN.

          FULL capability devices will always have this value set to the
          frame number of the request corresponding to this result.

          _Further details_:

          * Whenever a request differs from the last request, any future
          results not yet returned may have this value set to CONVERGING (this
          could include any in-progress captures not yet returned by the camera
          device, for more details see pipeline considerations below).
          * Submitting a series of multiple requests that differ from the
          previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
          moves the new synchronization frame to the last non-repeating
          request (using the smallest frame number from the contiguous list of
          repeating requests).
          * Submitting the same request repeatedly will not change this value
          to CONVERGING, if it was already a non-negative value.
          * When this value changes to non-negative, that means that all of the
          metadata controls from the request have been applied, all of the
          metadata controls from the camera device have been read to the
          updated values (into the result), and all of the graphics buffers
          corresponding to this result are also synchronized to the request.

          _Pipeline considerations_:

          Submitting a request with updated controls relative to the previously
          submitted requests may also invalidate the synchronization state
          of all the results corresponding to currently in-flight requests.

          In other words, results for this current request and up to
          android.request.pipelineMaxDepth prior requests may have their
          android.sync.frameNumber change to CONVERGING.
          </details>
          <hal_details>
          Using UNKNOWN here is illegal unless android.sync.maxLatency
          is also UNKNOWN.

          FULL capability devices should simply set this value to the
          `frame_number` of the request this result corresponds to.
          </hal_details>
          <tag id="V1" />
        </entry>
      </dynamic>
      <static>
        <entry name="maxLatency" type="int32" visibility="public" enum="true"
               hwlevel="legacy">
          <enum>
            <value id="0">PER_FRAME_CONTROL
              <notes>
              Every frame has the requests immediately applied.

              Furthermore for all results,
              `android.sync.frameNumber == CaptureResult#getFrameNumber()`

              Changing controls over multiple requests one after another will
              produce results that have those controls applied atomically
              each frame.

              All FULL capability devices will have this as their maxLatency.
              </notes>
            </value>
            <value id="-1">UNKNOWN
              <notes>
              Each new frame has some subset (potentially the entire set)
              of the past requests applied to the camera settings.

              By submitting a series of identical requests, the camera device
              will eventually have the camera settings applied, but it is
              unknown when that exact point will be.

              All LEGACY capability devices will have this as their maxLatency.
              </notes>
            </value>
          </enum>
          <description>
          The maximum number of frames that can occur after a request
          (different than the previous) has been submitted, and before the
          result's state becomes synchronized (by setting
          android.sync.frameNumber to a non-negative value).
          </description>
          <units>Frame counts</units>
          <range>A positive value, PER_FRAME_CONTROL, or UNKNOWN.</range>
          <details>
          This defines the maximum distance (in number of metadata results),
          between android.sync.frameNumber and the equivalent
          frame number for that result.

          In other words this acts as an upper boundary for how many frames
          must occur before the camera device knows for a fact that the new
          submitted camera settings have been applied in outgoing frames.

          For example if the distance was 2,

              initial request = X (repeating)
              request1 = X
              request2 = Y
              request3 = Y
              request4 = Y

              where requestN has frameNumber N, and the first of the repeating
              initial request's has frameNumber F (and F &lt; 1).

              initial result = X' + { android.sync.frameNumber == F }
              result1 = X' + { android.sync.frameNumber == F }
              result2 = X' + { android.sync.frameNumber == CONVERGING }
              result3 = X' + { android.sync.frameNumber == CONVERGING }
              result4 = X' + { android.sync.frameNumber == 2 }

              where resultN has frameNumber N.

          Since `result4` has a `frameNumber == 4` and
          `android.sync.frameNumber == 2`, the distance is clearly
          `4 - 2 = 2`.
          </details>
          <hal_details>
          Use `frame_count` from camera3_request_t instead of
          android.request.frameCount or `CaptureResult#getFrameNumber()`.

          LIMITED devices are strongly encouraged to use a non-negative
          value. If UNKNOWN is used here then app developers do not have a way
          to know when sensor settings have been applied.
          </hal_details>
          <tag id="V1" />
        </entry>
      </static>
    </section>
  </namespace>
</metadata>