Camera2: Add metadata keys and enum values

- Insert metadata enum ints into CameraMetadata
- Insert metadata Keys into relevant files
- Remove some dead code in CameraMetadata

Generated from /system/media/camera/docs.

Change-Id: I3d864ad8c7add5f35ca740860cb2883d54a0791e
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index 11c991a..d5bb8b3 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -34,73 +34,6 @@
  *
  */
 public final class CaptureResult extends CameraMetadata {
-
-    /**
-     * The timestamp representing the start of image capture, in nanoseconds.
-     * This corresponds to the timestamp available through
-     * {@link android.graphics.SurfaceTexture#getTimestamp SurfaceTexture.getTimestamp()}
-     * or {@link android.media.Image#getTimestamp Image.getTimestamp()} for this
-     * capture's image data.
-     */
-    public static final Key<Long> SENSOR_TIMESTAMP =
-            new Key<Long>("android.sensor.timestamp", Long.TYPE);
-
-    /**
-     * The state of the camera device's auto-exposure algorithm. One of the
-     * CONTROL_AE_STATE_* enumerations.
-     */
-    public static final Key<Integer> CONTROL_AE_STATE =
-            new Key<Integer>("android.control.aeState", Integer.TYPE);
-
-    /**
-     * The auto-exposure algorithm is inactive.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_INACTIVE = 0;
-
-    /**
-     * The auto-exposure algorithm is currently searching for proper exposure.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_SEARCHING = 1;
-
-    /**
-     * The auto-exposure algorithm has reached proper exposure values for the
-     * current scene.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_CONVERGED = 2;
-
-    /**
-     * The auto-exposure algorithm has been locked to its current values.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_LOCKED = 3;
-
-    /**
-     * The auto-exposure algorithm has reached proper exposure values as with
-     * CONTROL_AE_STATE_CONVERGED, but the scene is too dark to take a good
-     * quality image without firing the camera flash.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_FLASH_REQUIRED = 4;
-
-    /**
-     * The precapture sequence of the auto-exposure algorithm has been triggered,
-     * and is underway.
-     * @see CONTROL_AE_STATE
-     */
-    public static final int CONTROL_AE_STATE_PRECAPTURE =5;
-
-    /**
-     * The list of faces detected in this capture. Available if face detection
-     * was enabled for this capture
-     */
-    public static final Key<Face[]> STATISTICS_DETECTED_FACES =
-            new Key<Face[]>("android.statistics.faces", Face[].class);
-
-    // TODO: Many many more
-
     /**
      * @hide
      */
@@ -114,7 +47,7 @@
 
         /**
          * <p>Bounds of the face. A rectangle relative to the sensor's
-         * {@link CameraProperties#SENSOR_ACTIVE_ARRAY_SIZE}, with (0,0)
+         * {@link CameraProperties#SENSOR_INFO_ACTIVE_ARRAY_SIZE}, with (0,0)
          * representing the top-left corner of the active array rectangle.</p>
          */
         public Rect getBounds() {
@@ -189,4 +122,807 @@
         private Point mRightEye;
         private Point mMouth;
     }
+
+    /*@O~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
+     * The key entries below this point are generated from metadata
+     * definitions in /system/media/camera/docs. Do not modify by hand or
+     * modify the comment blocks at the start or end.
+     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~*/
+
+    /**
+     * <p>
+     * A color transform matrix to use to transform
+     * from sensor RGB color space to output linear sRGB color space
+     * </p>
+     * <p>
+     * This matrix is either set by HAL when the request
+     * android.colorCorrection.mode is not TRANSFORM_MATRIX, or
+     * directly by the application in the request when the
+     * androird.colorCorrection.mode is TRANSFORM_MATRIX.
+     * In the latter case, the HAL may round the matrix to account
+     * for precision issues; the final rounded matrix should be
+     * reported back in this matrix result metadata.
+     * </p>
+     */
+    public static final Key<Rational[]> COLOR_CORRECTION_TRANSFORM =
+            new Key<Rational[]>("android.colorCorrection.transform", Rational[].class);
+
+    /**
+     * <p>
+     * Gains applying to Bayer color channels for
+     * white-balance
+     * </p>
+     * <p>
+     * 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 greenpixels on the odd rows. if a HAL
+     * does not support a separate gain for even/odd green channels,
+     * it should use the G_even value,and write G_odd equal to
+     * G_even in the output result metadata.
+     * </p><p>
+     * The ouput should be the gains actually applied by the HAL to
+     * the current frame.
+     * </p>
+     */
+    public static final Key<float[]> COLOR_CORRECTION_GAINS =
+            new Key<float[]>("android.colorCorrection.gains", float[].class);
+
+    /**
+     * <p>
+     * The ID sent with the latest
+     * CAMERA2_TRIGGER_PRECAPTURE_METERING call
+     * </p>
+     * <p>
+     * Must be 0 if no
+     * CAMERA2_TRIGGER_PRECAPTURE_METERING trigger received yet
+     * by HAL. Always updated even if AE algorithm ignores the
+     * trigger
+     * </p>
+     *
+     * @hide
+     */
+    public static final Key<Integer> CONTROL_AE_PRECAPTURE_ID =
+            new Key<Integer>("android.control.aePrecaptureId", int.class);
+
+    /**
+     * <p>
+     * List of areas to use for
+     * metering
+     * </p>
+     * <p>
+     * Each area is a rectangle plus weight: xmin, ymin,
+     * xmax, ymax, weight.
+     * </p><p>
+     * The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left of the active pixel array, and
+     * (android.sensor.info.activeArraySize.width,
+     * android.sensor.info.activeArraySize.height) being the
+     * bottom-right point of the active pixel array. The weight
+     * should be nonnegative.
+     * </p><p>
+     * If all regions have 0 weight, then no specific metering area
+     * needs to be used by the HAL. If the metering region is
+     * outside the current android.scaler.cropRegion, the HAL
+     * should ignore the sections outside the region and output the
+     * used sections in the frame metadata
+     * </p>
+     */
+    public static final Key<int[]> CONTROL_AE_REGIONS =
+            new Key<int[]>("android.control.aeRegions", int[].class);
+
+    /**
+     * <p>
+     * Current state of AE algorithm
+     * </p>
+     * <p>
+     * Whenever the AE algorithm state changes, a
+     * MSG_AUTOEXPOSURE notification must be send if a
+     * notification callback is registered.
+     * </p>
+     * @see #CONTROL_AE_STATE_INACTIVE
+     * @see #CONTROL_AE_STATE_SEARCHING
+     * @see #CONTROL_AE_STATE_CONVERGED
+     * @see #CONTROL_AE_STATE_LOCKED
+     * @see #CONTROL_AE_STATE_FLASH_REQUIRED
+     * @see #CONTROL_AE_STATE_PRECAPTURE
+     */
+    public static final Key<Integer> CONTROL_AE_STATE =
+            new Key<Integer>("android.control.aeState", int.class);
+
+    /**
+     * <p>
+     * Whether AF is currently enabled, and what
+     * mode it is set to
+     * </p>
+     * @see #CONTROL_AF_MODE_OFF
+     * @see #CONTROL_AF_MODE_AUTO
+     * @see #CONTROL_AF_MODE_MACRO
+     * @see #CONTROL_AF_MODE_CONTINUOUS_VIDEO
+     * @see #CONTROL_AF_MODE_CONTINUOUS_PICTURE
+     * @see #CONTROL_AF_MODE_EDOF
+     */
+    public static final Key<Integer> CONTROL_AF_MODE =
+            new Key<Integer>("android.control.afMode", int.class);
+
+    /**
+     * <p>
+     * List of areas to use for focus
+     * estimation
+     * </p>
+     * <p>
+     * Each area is a rectangle plus weight: xmin, ymin,
+     * xmax, ymax, weight.
+     * </p><p>
+     * The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left of the active pixel array, and
+     * (android.sensor.info.activeArraySize.width,
+     * android.sensor.info.activeArraySize.height) being the
+     * bottom-right point of the active pixel array. The weight
+     * should be nonnegative.
+     * </p><p>
+     * If all regions have 0 weight, then no specific focus area
+     * needs to be used by the HAL. If the focusing region is
+     * outside the current android.scaler.cropRegion, the HAL
+     * should ignore the sections outside the region and output the
+     * used sections in the frame metadata
+     * </p>
+     */
+    public static final Key<int[]> CONTROL_AF_REGIONS =
+            new Key<int[]>("android.control.afRegions", int[].class);
+
+    /**
+     * <p>
+     * Current state of AF algorithm
+     * </p>
+     * <p>
+     * Whenever the AF algorithm state changes, a
+     * MSG_AUTOFOCUS notification must be send if a notification
+     * callback is registered.
+     * </p>
+     * @see #CONTROL_AF_STATE_INACTIVE
+     * @see #CONTROL_AF_STATE_PASSIVE_SCAN
+     * @see #CONTROL_AF_STATE_PASSIVE_FOCUSED
+     * @see #CONTROL_AF_STATE_ACTIVE_SCAN
+     * @see #CONTROL_AF_STATE_FOCUSED_LOCKED
+     * @see #CONTROL_AF_STATE_NOT_FOCUSED_LOCKED
+     */
+    public static final Key<Integer> CONTROL_AF_STATE =
+            new Key<Integer>("android.control.afState", int.class);
+
+    /**
+     * <p>
+     * The ID sent with the latest
+     * CAMERA2_TRIGGER_AUTOFOCUS call
+     * </p>
+     * <p>
+     * Must be 0 if no CAMERA2_TRIGGER_AUTOFOCUS trigger
+     * received yet by HAL. Always updated even if AF algorithm
+     * ignores the trigger
+     * </p>
+     *
+     * @hide
+     */
+    public static final Key<Integer> CONTROL_AF_TRIGGER_ID =
+            new Key<Integer>("android.control.afTriggerId", int.class);
+
+    /**
+     * <p>
+     * Whether AWB is currently setting the color
+     * transform fields, and what its illumination target
+     * is
+     * </p>
+     * <p>
+     * [BC - AWB lock,AWB modes]
+     * </p>
+     * @see #CONTROL_AWB_MODE_OFF
+     * @see #CONTROL_AWB_MODE_AUTO
+     * @see #CONTROL_AWB_MODE_INCANDESCENT
+     * @see #CONTROL_AWB_MODE_FLUORESCENT
+     * @see #CONTROL_AWB_MODE_WARM_FLUORESCENT
+     * @see #CONTROL_AWB_MODE_DAYLIGHT
+     * @see #CONTROL_AWB_MODE_CLOUDY_DAYLIGHT
+     * @see #CONTROL_AWB_MODE_TWILIGHT
+     * @see #CONTROL_AWB_MODE_SHADE
+     */
+    public static final Key<Integer> CONTROL_AWB_MODE =
+            new Key<Integer>("android.control.awbMode", int.class);
+
+    /**
+     * <p>
+     * List of areas to use for illuminant
+     * estimation
+     * </p>
+     * <p>
+     * Only used in AUTO mode.
+     * </p><p>
+     * Each area is a rectangle plus weight: xmin, ymin, xmax,
+     * ymax, weight. The coordinate system is based on the active
+     * pixel array, with (0,0) being the top-left of the active
+     * pixel array, and (android.sensor.info.activeArraySize.width,
+     * android.sensor.info.activeArraySize.height) being the
+     * bottom-right point of the active pixel array. The weight
+     * should be nonnegative.
+     * </p><p>
+     * If all regions have 0 weight, then no specific metering area
+     * needs to be used by the HAL. If the metering region is
+     * outside the current android.scaler.cropRegion, the HAL
+     * should ignore the sections outside the region and output the
+     * used sections in the frame metadata
+     * </p>
+     */
+    public static final Key<int[]> CONTROL_AWB_REGIONS =
+            new Key<int[]>("android.control.awbRegions", int[].class);
+
+    /**
+     * <p>
+     * Current state of AWB algorithm
+     * </p>
+     * <p>
+     * Whenever the AWB algorithm state changes, a
+     * MSG_AUTOWHITEBALANCE notification must be send if a
+     * notification callback is registered.
+     * </p>
+     * @see #CONTROL_AWB_STATE_INACTIVE
+     * @see #CONTROL_AWB_STATE_SEARCHING
+     * @see #CONTROL_AWB_STATE_CONVERGED
+     * @see #CONTROL_AWB_STATE_LOCKED
+     */
+    public static final Key<Integer> CONTROL_AWB_STATE =
+            new Key<Integer>("android.control.awbState", int.class);
+
+    /**
+     * <p>
+     * Overall mode of 3A control
+     * routines
+     * </p>
+     * @see #CONTROL_MODE_OFF
+     * @see #CONTROL_MODE_AUTO
+     * @see #CONTROL_MODE_USE_SCENE_MODE
+     */
+    public static final Key<Integer> CONTROL_MODE =
+            new Key<Integer>("android.control.mode", int.class);
+
+    /**
+     * <p>
+     * Operation mode for edge
+     * enhancement
+     * </p>
+     * @see #EDGE_MODE_OFF
+     * @see #EDGE_MODE_FAST
+     * @see #EDGE_MODE_HIGH_QUALITY
+     */
+    public static final Key<Integer> EDGE_MODE =
+            new Key<Integer>("android.edge.mode", int.class);
+
+    /**
+     * <p>
+     * Select flash operation mode
+     * </p>
+     * @see #FLASH_MODE_OFF
+     * @see #FLASH_MODE_SINGLE
+     * @see #FLASH_MODE_TORCH
+     */
+    public static final Key<Integer> FLASH_MODE =
+            new Key<Integer>("android.flash.mode", int.class);
+
+    /**
+     * <p>
+     * Current state of the flash
+     * unit
+     * </p>
+     * @see #FLASH_STATE_UNAVAILABLE
+     * @see #FLASH_STATE_CHARGING
+     * @see #FLASH_STATE_READY
+     * @see #FLASH_STATE_FIRED
+     */
+    public static final Key<Integer> FLASH_STATE =
+            new Key<Integer>("android.flash.state", int.class);
+
+    /**
+     * <p>
+     * GPS coordinates to include in output JPEG
+     * EXIF
+     * </p>
+     */
+    public static final Key<double[]> JPEG_GPS_COORDINATES =
+            new Key<double[]>("android.jpeg.gpsCoordinates", double[].class);
+
+    /**
+     * <p>
+     * 32 characters describing GPS algorithm to
+     * include in EXIF
+     * </p>
+     */
+    public static final Key<String> JPEG_GPS_PROCESSING_METHOD =
+            new Key<String>("android.jpeg.gpsProcessingMethod", String.class);
+
+    /**
+     * <p>
+     * Time GPS fix was made to include in
+     * EXIF
+     * </p>
+     */
+    public static final Key<Long> JPEG_GPS_TIMESTAMP =
+            new Key<Long>("android.jpeg.gpsTimestamp", long.class);
+
+    /**
+     * <p>
+     * Orientation of JPEG image to
+     * write
+     * </p>
+     */
+    public static final Key<Integer> JPEG_ORIENTATION =
+            new Key<Integer>("android.jpeg.orientation", int.class);
+
+    /**
+     * <p>
+     * Compression quality of the final JPEG
+     * image
+     * </p>
+     * <p>
+     * 85-95 is typical usage range
+     * </p>
+     */
+    public static final Key<Byte> JPEG_QUALITY =
+            new Key<Byte>("android.jpeg.quality", byte.class);
+
+    /**
+     * <p>
+     * Compression quality of JPEG
+     * thumbnail
+     * </p>
+     */
+    public static final Key<Byte> JPEG_THUMBNAIL_QUALITY =
+            new Key<Byte>("android.jpeg.thumbnailQuality", byte.class);
+
+    /**
+     * <p>
+     * Resolution of embedded JPEG
+     * thumbnail
+     * </p>
+     */
+    public static final Key<android.hardware.camera2.Size> JPEG_THUMBNAIL_SIZE =
+            new Key<android.hardware.camera2.Size>("android.jpeg.thumbnailSize", android.hardware.camera2.Size.class);
+
+    /**
+     * <p>
+     * Size of the lens aperture
+     * </p>
+     * <p>
+     * Will not be supported on most devices. Can only
+     * pick from supported list
+     * </p>
+     */
+    public static final Key<Float> LENS_APERTURE =
+            new Key<Float>("android.lens.aperture", float.class);
+
+    /**
+     * <p>
+     * State of lens neutral density
+     * filter(s)
+     * </p>
+     * <p>
+     * Will not be supported on most devices. Can only
+     * pick from supported list
+     * </p>
+     */
+    public static final Key<Float> LENS_FILTER_DENSITY =
+            new Key<Float>("android.lens.filterDensity", float.class);
+
+    /**
+     * <p>
+     * Lens optical zoom setting
+     * </p>
+     * <p>
+     * Will not be supported on most devices.
+     * </p>
+     */
+    public static final Key<Float> LENS_FOCAL_LENGTH =
+            new Key<Float>("android.lens.focalLength", float.class);
+
+    /**
+     * <p>
+     * Distance to plane of sharpest focus,
+     * measured from frontmost surface of the lens
+     * </p>
+     * <p>
+     * Should be zero for fixed-focus cameras
+     * </p>
+     */
+    public static final Key<Float> LENS_FOCUS_DISTANCE =
+            new Key<Float>("android.lens.focusDistance", float.class);
+
+    /**
+     * <p>
+     * The range of scene distances that are in
+     * sharp focus (depth of field)
+     * </p>
+     * <p>
+     * If variable focus not supported, can still report
+     * fixed depth of field range
+     * </p>
+     */
+    public static final Key<Float> LENS_FOCUS_RANGE =
+            new Key<Float>("android.lens.focusRange", float.class);
+
+    /**
+     * <p>
+     * Whether optical image stabilization is
+     * enabled.
+     * </p>
+     * <p>
+     * Will not be supported on most devices.
+     * </p>
+     * @see #LENS_OPTICAL_STABILIZATION_MODE_OFF
+     * @see #LENS_OPTICAL_STABILIZATION_MODE_ON
+     */
+    public static final Key<Integer> LENS_OPTICAL_STABILIZATION_MODE =
+            new Key<Integer>("android.lens.opticalStabilizationMode", int.class);
+
+    /**
+     * <p>
+     * Current lens status
+     * </p>
+     * @see #LENS_STATE_STATIONARY
+     */
+    public static final Key<Integer> LENS_STATE =
+            new Key<Integer>("android.lens.state", int.class);
+
+    /**
+     * <p>
+     * Mode of operation for the noise reduction
+     * algorithm
+     * </p>
+     * @see #NOISE_REDUCTION_MODE_OFF
+     * @see #NOISE_REDUCTION_MODE_FAST
+     * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY
+     */
+    public static final Key<Integer> NOISE_REDUCTION_MODE =
+            new Key<Integer>("android.noiseReduction.mode", int.class);
+
+    /**
+     * <p>
+     * Number of frames captured since
+     * open()
+     * </p>
+     * <p>
+     * Reset on release()
+     * </p>
+     */
+    public static final Key<Integer> REQUEST_FRAME_COUNT =
+            new Key<Integer>("android.request.frameCount", int.class);
+
+    /**
+     * <p>
+     * An application-specified ID for the current
+     * request. Must be maintained unchanged in output
+     * frame
+     * </p>
+     *
+     * @hide
+     */
+    public static final Key<Integer> REQUEST_ID =
+            new Key<Integer>("android.request.id", int.class);
+
+    /**
+     * <p>
+     * (x, y, width, height).
+     * </p><p>
+     * A rectangle with the top-level corner of (x,y) and size
+     * (width, height). The region of the sensor that is used for
+     * output. Each stream must use this rectangle to produce its
+     * output, cropping to a smaller region if necessary to
+     * maintain the stream's aspect ratio.
+     * </p><p>
+     * HAL2.x uses only (x, y, width)
+     * </p>
+     * <p>
+     * Any additional per-stream cropping must be done to
+     * maximize the final pixel area of the stream.
+     * </p><p>
+     * For example, if the crop region is set to a 4:3 aspect
+     * ratio, then 4:3 streams should use the exact crop
+     * region. 16:9 streams should further crop vertically
+     * (letterbox).
+     * </p><p>
+     * Conversely, if the crop region is set to a 16:9, then 4:3
+     * outputs should crop horizontally (pillarbox), and 16:9
+     * streams should match exactly. These additional crops must
+     * be centered within the crop region.
+     * </p><p>
+     * 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. The width and height of the crop region cannot
+     * be set to be smaller than floor( activeArraySize.width /
+     * android.scaler.maxDigitalZoom ) and floor(
+     * activeArraySize.height / android.scaler.maxDigitalZoom),
+     * respectively.
+     * </p>
+     */
+    public static final Key<android.graphics.Rect> SCALER_CROP_REGION =
+            new Key<android.graphics.Rect>("android.scaler.cropRegion", android.graphics.Rect.class);
+
+    /**
+     * <p>
+     * Duration each pixel is exposed to
+     * light
+     * </p>
+     * <p>
+     * 1/10000 - 30 sec range. No bulb mode
+     * </p>
+     */
+    public static final Key<Long> SENSOR_EXPOSURE_TIME =
+            new Key<Long>("android.sensor.exposureTime", long.class);
+
+    /**
+     * <p>
+     * Duration from start of frame exposure to
+     * start of next frame exposure
+     * </p>
+     * <p>
+     * Exposure time has priority, so duration is set to
+     * max(duration, exposure time + overhead)
+     * </p>
+     */
+    public static final Key<Long> SENSOR_FRAME_DURATION =
+            new Key<Long>("android.sensor.frameDuration", long.class);
+
+    /**
+     * <p>
+     * Gain applied to image data. Must be
+     * implemented through analog gain only if set to values
+     * below 'maximum analog sensitivity'.
+     * </p>
+     * <p>
+     * ISO 12232:2006 REI method
+     * </p>
+     */
+    public static final Key<Integer> SENSOR_SENSITIVITY =
+            new Key<Integer>("android.sensor.sensitivity", int.class);
+
+    /**
+     * <p>
+     * Time at start of exposure of first
+     * row
+     * </p>
+     * <p>
+     * Monotonic, should be synced to other timestamps in
+     * system
+     * </p>
+     */
+    public static final Key<Long> SENSOR_TIMESTAMP =
+            new Key<Long>("android.sensor.timestamp", long.class);
+
+    /**
+     * <p>
+     * State of the face detector
+     * unit
+     * </p>
+     * <p>
+     * Whether face detection is enabled, and whether it
+     * should output just the basic fields or the full set of
+     * fields. Value must be one of the
+     * android.statistics.info.availableFaceDetectModes.
+     * </p>
+     * @see #STATISTICS_FACE_DETECT_MODE_OFF
+     * @see #STATISTICS_FACE_DETECT_MODE_SIMPLE
+     * @see #STATISTICS_FACE_DETECT_MODE_FULL
+     */
+    public static final Key<Integer> STATISTICS_FACE_DETECT_MODE =
+            new Key<Integer>("android.statistics.faceDetectMode", int.class);
+
+    /**
+     * <p>
+     * List of unique IDs for detected
+     * faces
+     * </p>
+     * <p>
+     * Only available if faceDetectMode == FULL
+     * </p>
+     */
+    public static final Key<int[]> STATISTICS_FACE_IDS =
+            new Key<int[]>("android.statistics.faceIds", int[].class);
+
+    /**
+     * <p>
+     * List of landmarks for detected
+     * faces
+     * </p>
+     * <p>
+     * Only available if faceDetectMode == FULL
+     * </p>
+     */
+    public static final Key<int[]> STATISTICS_FACE_LANDMARKS =
+            new Key<int[]>("android.statistics.faceLandmarks", int[].class);
+
+    /**
+     * <p>
+     * List of the bounding rectangles for detected
+     * faces
+     * </p>
+     * <p>
+     * Only available if faceDetectMode != OFF
+     * </p>
+     */
+    public static final Key<android.graphics.Rect[]> STATISTICS_FACE_RECTANGLES =
+            new Key<android.graphics.Rect[]>("android.statistics.faceRectangles", android.graphics.Rect[].class);
+
+    /**
+     * <p>
+     * List of the face confidence scores for
+     * detected faces
+     * </p>
+     * <p>
+     * Only available if faceDetectMode != OFF
+     * </p>
+     */
+    public static final Key<byte[]> STATISTICS_FACE_SCORES =
+            new Key<byte[]>("android.statistics.faceScores", byte[].class);
+
+    /**
+     * <p>
+     * A low-resolution map of lens shading, per
+     * color channel
+     * </p>
+     * <p>
+     * Assume bilinear interpolation of map. The least
+     * shaded section of the image should have a gain factor
+     * of 1; all other sections should have gains above 1.
+     * the map should be on the order of 30-40 rows, and
+     * must be smaller than 64x64.
+     * </p>
+     */
+    public static final Key<float[]> STATISTICS_LENS_SHADING_MAP =
+            new Key<float[]>("android.statistics.lensShadingMap", float[].class);
+
+    /**
+     * <p>
+     * The best-fit color channel gains calculated
+     * by the HAL's statistics units for the current output frame
+     * </p>
+     * <p>
+     * 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.
+     * </p><p>
+     * The 4 channel gains are defined in Bayer domain,
+     * see android.colorCorrection.gains for details.
+     * </p>
+     */
+    public static final Key<float[]> STATISTICS_PREDICTED_COLOR_GAINS =
+            new Key<float[]>("android.statistics.predictedColorGains", float[].class);
+
+    /**
+     * <p>
+     * The best-fit color transform matrix estimate
+     * calculated by the HAL's statistics units for the current
+     * output frame
+     * </p>
+     * <p>
+     * The HAL must provide the estimate from its
+     * statistics unit on the white balance transforms to use
+     * for the next frame. These are the values the HAL 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.
+     * </p><p>
+     * These estimates must be provided for all frames, even if
+     * capture settings and color transforms are set by the application.
+     * </p>
+     */
+    public static final Key<Rational[]> STATISTICS_PREDICTED_COLOR_TRANSFORM =
+            new Key<Rational[]>("android.statistics.predictedColorTransform", Rational[].class);
+
+    /**
+     * <p>
+     * The HAL estimated scene illumination lighting
+     * frequency
+     * </p>
+     * <p>
+     * Report NONE if there doesn't appear to be flickering
+     * illumination
+     * </p>
+     * @see #STATISTICS_SCENE_FLICKER_NONE
+     * @see #STATISTICS_SCENE_FLICKER_50HZ
+     * @see #STATISTICS_SCENE_FLICKER_60HZ
+     */
+    public static final Key<Integer> STATISTICS_SCENE_FLICKER =
+            new Key<Integer>("android.statistics.sceneFlicker", int.class);
+
+    /**
+     * <p>
+     * Table mapping blue input values to output
+     * values
+     * </p>
+     */
+    public static final Key<Float> TONEMAP_CURVE_BLUE =
+            new Key<Float>("android.tonemap.curveBlue", float.class);
+
+    /**
+     * <p>
+     * Table mapping green input values to output
+     * values
+     * </p>
+     */
+    public static final Key<Float> TONEMAP_CURVE_GREEN =
+            new Key<Float>("android.tonemap.curveGreen", float.class);
+
+    /**
+     * <p>
+     * Table mapping red input values to output
+     * values
+     * </p>
+     * <p>
+     * .The input range must be monotonically increasing
+     * with N, and values between entries should be linearly
+     * interpolated. For example, if the array is: [0.0, 0.0,
+     * 0.3, 0.5, 1.0, 1.0], then the input->output mapping
+     * for a few sample points would be: 0 -> 0, 0.15 ->
+     * 0.25, 0.3 -> 0.5, 0.5 -> 0.64
+     * </p>
+     */
+    public static final Key<float[]> TONEMAP_CURVE_RED =
+            new Key<float[]>("android.tonemap.curveRed", float[].class);
+
+    /**
+     * @see #TONEMAP_MODE_CONTRAST_CURVE
+     * @see #TONEMAP_MODE_FAST
+     * @see #TONEMAP_MODE_HIGH_QUALITY
+     */
+    public static final Key<Integer> TONEMAP_MODE =
+            new Key<Integer>("android.tonemap.mode", int.class);
+
+    /**
+     * <p>
+     * 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.
+     * </p><p>
+     * 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.
+     * </p><p>
+     * The LED *may* be off if a trusted application is using the data that
+     * doesn't violate the above rules.
+     * </p>
+     *
+     * @hide
+     */
+    public static final Key<Boolean> LED_TRANSMIT =
+            new Key<Boolean>("android.led.transmit", boolean.class);
+
+    /**
+     * <p>
+     * Whether black-level compensation is locked
+     * to its current values, or is free to vary
+     * </p>
+     * <p>
+     * When set to ON, the values used for black-level
+     * compensation must not change until the lock is set to
+     * OFF
+     * </p><p>
+     * Since changes to certain capture parameters (such as
+     * exposure time) may require resetting of black level
+     * compensation, the HAL must report whether setting the
+     * black level lock was successful in the output result
+     * metadata.
+     * </p>
+     */
+    public static final Key<Boolean> BLACK_LEVEL_LOCK =
+            new Key<Boolean>("android.blackLevel.lock", boolean.class);
+
+    /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
+     * End generated code
+     *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
 }