diff --git a/api/current.txt b/api/current.txt
index 9c26faa..0a0a0d3 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -12684,6 +12684,7 @@
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Float> LENS_INFO_MINIMUM_FOCUS_DISTANCE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> REQUEST_AVAILABLE_CAPABILITIES;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_INPUT_STREAMS;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_PROC;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_PROC_STALLING;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_RAW;
@@ -12901,13 +12902,16 @@
     field public static final int LENS_STATE_STATIONARY = 0; // 0x0
     field public static final int NOISE_REDUCTION_MODE_FAST = 1; // 0x1
     field public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2; // 0x2
+    field public static final int NOISE_REDUCTION_MODE_MINIMAL = 3; // 0x3
     field public static final int NOISE_REDUCTION_MODE_OFF = 0; // 0x0
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0; // 0x0
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE = 6; // 0x6
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 2; // 0x2
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 1; // 0x1
+    field public static final int REQUEST_AVAILABLE_CAPABILITIES_OPAQUE_REPROCESSING = 4; // 0x4
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3; // 0x3
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS = 5; // 0x5
+    field public static final int REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING = 7; // 0x7
     field public static final int SCALER_CROPPING_TYPE_CENTER_ONLY = 0; // 0x0
     field public static final int SCALER_CROPPING_TYPE_FREEFORM = 1; // 0x1
     field public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3; // 0x3
@@ -13013,6 +13017,7 @@
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Float> LENS_FOCUS_DISTANCE;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Integer> LENS_OPTICAL_STABILIZATION_MODE;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Integer> NOISE_REDUCTION_MODE;
+    field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR;
     field public static final android.hardware.camera2.CaptureRequest.Key<android.graphics.Rect> SCALER_CROP_REGION;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Long> SENSOR_EXPOSURE_TIME;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Long> SENSOR_FRAME_DURATION;
@@ -13090,6 +13095,7 @@
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> LENS_OPTICAL_STABILIZATION_MODE;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> LENS_STATE;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> NOISE_REDUCTION_MODE;
+    field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Byte> REQUEST_PIPELINE_DEPTH;
     field public static final android.hardware.camera2.CaptureResult.Key<android.graphics.Rect> SCALER_CROP_REGION;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Long> SENSOR_EXPOSURE_TIME;
diff --git a/api/system-current.txt b/api/system-current.txt
index 62932fd..5f826ca 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -12952,6 +12952,7 @@
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Float> LENS_INFO_MINIMUM_FOCUS_DISTANCE;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<int[]> REQUEST_AVAILABLE_CAPABILITIES;
+    field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_INPUT_STREAMS;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_PROC;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_PROC_STALLING;
     field public static final android.hardware.camera2.CameraCharacteristics.Key<java.lang.Integer> REQUEST_MAX_NUM_OUTPUT_RAW;
@@ -13169,13 +13170,16 @@
     field public static final int LENS_STATE_STATIONARY = 0; // 0x0
     field public static final int NOISE_REDUCTION_MODE_FAST = 1; // 0x1
     field public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2; // 0x2
+    field public static final int NOISE_REDUCTION_MODE_MINIMAL = 3; // 0x3
     field public static final int NOISE_REDUCTION_MODE_OFF = 0; // 0x0
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE = 0; // 0x0
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE = 6; // 0x6
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING = 2; // 0x2
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR = 1; // 0x1
+    field public static final int REQUEST_AVAILABLE_CAPABILITIES_OPAQUE_REPROCESSING = 4; // 0x4
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3; // 0x3
     field public static final int REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS = 5; // 0x5
+    field public static final int REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING = 7; // 0x7
     field public static final int SCALER_CROPPING_TYPE_CENTER_ONLY = 0; // 0x0
     field public static final int SCALER_CROPPING_TYPE_FREEFORM = 1; // 0x1
     field public static final int SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR = 3; // 0x3
@@ -13281,6 +13285,7 @@
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Float> LENS_FOCUS_DISTANCE;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Integer> LENS_OPTICAL_STABILIZATION_MODE;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Integer> NOISE_REDUCTION_MODE;
+    field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR;
     field public static final android.hardware.camera2.CaptureRequest.Key<android.graphics.Rect> SCALER_CROP_REGION;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Long> SENSOR_EXPOSURE_TIME;
     field public static final android.hardware.camera2.CaptureRequest.Key<java.lang.Long> SENSOR_FRAME_DURATION;
@@ -13358,6 +13363,7 @@
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> LENS_OPTICAL_STABILIZATION_MODE;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> LENS_STATE;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Integer> NOISE_REDUCTION_MODE;
+    field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Byte> REQUEST_PIPELINE_DEPTH;
     field public static final android.hardware.camera2.CaptureResult.Key<android.graphics.Rect> SCALER_CROP_REGION;
     field public static final android.hardware.camera2.CaptureResult.Key<java.lang.Long> SENSOR_EXPOSURE_TIME;
diff --git a/core/java/android/hardware/camera2/CameraCharacteristics.java b/core/java/android/hardware/camera2/CameraCharacteristics.java
index eace1c4..5310071 100644
--- a/core/java/android/hardware/camera2/CameraCharacteristics.java
+++ b/core/java/android/hardware/camera2/CameraCharacteristics.java
@@ -1069,8 +1069,11 @@
      * android.scaler.availableInputOutputFormatsMap. When using an
      * input stream, there must be at least one output stream
      * configured to to receive the reprocessed images.</p>
+     * <p>When an input stream and some output streams are used in a reprocessing request,
+     * only the input buffer will be used to produce these output stream buffers, and a
+     * new sensor image will not be captured.</p>
      * <p>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
+     * stream image format will be OPAQUE, the associated output stream image format
      * should be JPEG.</p>
      * <p><b>Range of valid values:</b><br></p>
      * <p>0 or 1.</p>
@@ -1080,8 +1083,8 @@
      * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p>
      *
      * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
-     * @hide
      */
+    @PublicKey
     public static final Key<Integer> REQUEST_MAX_NUM_INPUT_STREAMS =
             new Key<Integer>("android.request.maxNumInputStreams", int.class);
 
@@ -1157,8 +1160,10 @@
      *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR MANUAL_SENSOR}</li>
      *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING MANUAL_POST_PROCESSING}</li>
      *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_RAW RAW}</li>
+     *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_OPAQUE_REPROCESSING OPAQUE_REPROCESSING}</li>
      *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS READ_SENSOR_SETTINGS}</li>
      *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE BURST_CAPTURE}</li>
+     *   <li>{@link #REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING YUV_REPROCESSING}</li>
      * </ul></p>
      * <p>This key is available on all devices.</p>
      *
@@ -1167,8 +1172,10 @@
      * @see #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR
      * @see #REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING
      * @see #REQUEST_AVAILABLE_CAPABILITIES_RAW
+     * @see #REQUEST_AVAILABLE_CAPABILITIES_OPAQUE_REPROCESSING
      * @see #REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS
      * @see #REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE
+     * @see #REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING
      */
     @PublicKey
     public static final Key<int[]> REQUEST_AVAILABLE_CAPABILITIES =
@@ -1345,10 +1352,10 @@
      * <p>The mapping of image formats that are supported by this
      * camera device for input streams, to their corresponding output formats.</p>
      * <p>All camera devices with at least 1
-     * android.request.maxNumInputStreams will have at least one
+     * {@link CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} will have at least one
      * available input format.</p>
      * <p>The camera device will support the following map of formats,
-     * if its dependent capability is supported:</p>
+     * if its dependent capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}) is supported:</p>
      * <table>
      * <thead>
      * <tr>
@@ -1359,45 +1366,42 @@
      * </thead>
      * <tbody>
      * <tr>
-     * <td align="left">RAW_OPAQUE</td>
+     * <td align="left">OPAQUE</td>
      * <td align="left">JPEG</td>
-     * <td align="left">ZSL</td>
+     * <td align="left">OPAQUE_REPROCESSING</td>
      * </tr>
      * <tr>
-     * <td align="left">RAW_OPAQUE</td>
+     * <td align="left">OPAQUE</td>
      * <td align="left">YUV_420_888</td>
-     * <td align="left">ZSL</td>
+     * <td align="left">OPAQUE_REPROCESSING</td>
      * </tr>
      * <tr>
-     * <td align="left">RAW_OPAQUE</td>
-     * <td align="left">RAW16</td>
-     * <td align="left">RAW</td>
-     * </tr>
-     * <tr>
-     * <td align="left">RAW16</td>
      * <td align="left">YUV_420_888</td>
-     * <td align="left">RAW</td>
-     * </tr>
-     * <tr>
-     * <td align="left">RAW16</td>
      * <td align="left">JPEG</td>
-     * <td align="left">RAW</td>
+     * <td align="left">YUV_REPROCESSING</td>
+     * </tr>
+     * <tr>
+     * <td align="left">YUV_420_888</td>
+     * <td align="left">YUV_420_888</td>
+     * <td align="left">YUV_REPROCESSING</td>
      * </tr>
      * </tbody>
      * </table>
-     * <p>For ZSL-capable camera devices, using the RAW_OPAQUE format
+     * <p>OPAQUE refers to a device-internal format that is not directly application-visible.
+     * An OPAQUE input or output surface can be acquired by
+     * OpaqueImageRingBufferQueue#getInputSurface() or
+     * OpaqueImageRingBufferQueue#getOutputSurface().
+     * For a OPAQUE_REPROCESSING-capable camera device, using the OPAQUE format
      * as either input or output will never hurt maximum frame rate (i.e.
-     * StreamConfigurationMap#getOutputStallDuration(int,Size)
-     * for a <code>format =</code> RAW_OPAQUE is always 0).</p>
+     * StreamConfigurationMap#getOutputStallDuration(klass,Size) is always 0),
+     * where klass is android.media.OpaqueImageRingBufferQueue.class.</p>
      * <p>Attempting to configure an input stream with output streams not
      * listed as available in this map is not valid.</p>
      * <p>TODO: typedef to ReprocessFormatMap</p>
      * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
-     * <p><b>Full capability</b> -
-     * Present on all camera devices that report being {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL_FULL HARDWARE_LEVEL_FULL} devices in the
-     * {@link CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL android.info.supportedHardwareLevel} key</p>
      *
-     * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
+     * @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS
      * @hide
      */
     public static final Key<int[]> SCALER_AVAILABLE_INPUT_OUTPUT_FORMATS_MAP =
diff --git a/core/java/android/hardware/camera2/CameraMetadata.java b/core/java/android/hardware/camera2/CameraMetadata.java
index f6df302..af7d365 100644
--- a/core/java/android/hardware/camera2/CameraMetadata.java
+++ b/core/java/android/hardware/camera2/CameraMetadata.java
@@ -439,23 +439,40 @@
     public static final int REQUEST_AVAILABLE_CAPABILITIES_RAW = 3;
 
     /**
-     * <p>The camera device supports the Zero Shutter Lag use case.</p>
+     * <p>The camera device supports the Zero Shutter Lag reprocessing use case.</p>
      * <ul>
-     * <li>At least one input stream can be used.</li>
-     * <li>RAW_OPAQUE is supported as an output/input format</li>
-     * <li>Using RAW_OPAQUE does not cause a frame rate drop
+     * <li>One input stream is supported, that is, <code>{@link CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} == 1</code>.</li>
+     * <li>OPAQUE is supported as an output/input format, that is,
+     *   StreamConfigurationMap#getOutputSizes(klass) and
+     *   StreamConfigurationMap#getInputSizes(klass) return non empty Size[] and have common
+     *   sizes, where klass is android.media.OpaqueImageRingBufferQueue.class. See
+     *   android.scaler.availableInputOutputFormatsMap for detailed information about
+     *   OPAQUE format.</li>
+     * <li>android.scaler.availableInputOutputFormatsMap has the required map entries.</li>
+     * <li>Using OPAQUE does not cause a frame rate drop
      *   relative to the sensor's maximum capture rate (at that
-     *   resolution).</li>
-     * <li>RAW_OPAQUE will be reprocessable into both YUV_420_888
+     *   resolution), see android.scaler.availableInputOutputFormatsMap for more details.</li>
+     * <li>OPAQUE will be reprocessable into both YUV_420_888
      *   and JPEG formats.</li>
-     * <li>The maximum available resolution for RAW_OPAQUE streams
+     * <li>The maximum available resolution for OPAQUE streams
      *   (both input/output) will match the maximum available
      *   resolution of JPEG streams.</li>
+     * <li>Only below controls are effective for reprocessing requests and
+     *   will be present in capture results, other controls in reprocess
+     *   requests will be ignored by the camera device.<ul>
+     * <li>android.jpeg.*</li>
+     * <li>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}</li>
+     * <li>{@link CaptureRequest#EDGE_MODE android.edge.mode}</li>
      * </ul>
+     * </li>
+     * </ul>
+     *
+     * @see CaptureRequest#EDGE_MODE
+     * @see CaptureRequest#NOISE_REDUCTION_MODE
+     * @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS
      * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
-     * @hide
      */
-    public static final int REQUEST_AVAILABLE_CAPABILITIES_ZSL = 4;
+    public static final int REQUEST_AVAILABLE_CAPABILITIES_OPAQUE_REPROCESSING = 4;
 
     /**
      * <p>The camera device supports accurately reporting the sensor settings for many of
@@ -515,6 +532,45 @@
      */
     public static final int REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE = 6;
 
+    /**
+     * <p>The camera device supports the YUV420_888 reprocessing use case, similar as
+     * OPAQUE_REPROCESSING, This capability requires the camera device to support the
+     * following:</p>
+     * <ul>
+     * <li>One input stream is supported, that is, <code>{@link CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS android.request.maxNumInputStreams} == 1</code>.</li>
+     * <li>YUV420_888 is supported as a common format for both input and output, that is,
+     *   StreamConfigurationMap#getOutputSizes(YUV420_888) and
+     *   StreamConfigurationMap#getInputSizes(YUV420_888) return non empty Size[] and have
+     *   common sizes.</li>
+     * <li>android.scaler.availableInputOutputFormatsMap has the required map entries.</li>
+     * <li>Using YUV420_888 does not cause a frame rate drop
+     *   relative to the sensor's maximum capture rate (at that
+     *   resolution), see android.scaler.availableInputOutputFormatsMap for more details.</li>
+     * <li>YUV420_888 will be reprocessable into both YUV_420_888
+     *   and JPEG formats.</li>
+     * <li>The maximum available resolution for YUV420_888 streams
+     *   (both input/output) will match the maximum available
+     *   resolution of JPEG streams.</li>
+     * <li>Only the below controls are effective for reprocessing requests and will be
+     *   present in capture results. The reprocess requests are from the original capture
+     *   results that are assocaited with the intermidate YUV420_888 output buffers.
+     *   All other controls in the reprocess requests will be ignored by the camera device.<ul>
+     * <li>android.jpeg.*</li>
+     * <li>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}</li>
+     * <li>{@link CaptureRequest#EDGE_MODE android.edge.mode}</li>
+     * <li>{@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}</li>
+     * </ul>
+     * </li>
+     * </ul>
+     *
+     * @see CaptureRequest#EDGE_MODE
+     * @see CaptureRequest#NOISE_REDUCTION_MODE
+     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
+     * @see CameraCharacteristics#REQUEST_MAX_NUM_INPUT_STREAMS
+     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
+     */
+    public static final int REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING = 7;
+
     //
     // Enumeration values for CameraCharacteristics#SCALER_CROPPING_TYPE
     //
@@ -1830,6 +1886,13 @@
      */
     public static final int NOISE_REDUCTION_MODE_HIGH_QUALITY = 2;
 
+    /**
+     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
+     * sensor output. </p>
+     * @see CaptureRequest#NOISE_REDUCTION_MODE
+     */
+    public static final int NOISE_REDUCTION_MODE_MINIMAL = 3;
+
     //
     // Enumeration values for CaptureRequest#SENSOR_TEST_PATTERN_MODE
     //
diff --git a/core/java/android/hardware/camera2/CaptureRequest.java b/core/java/android/hardware/camera2/CaptureRequest.java
index 0849df8..fb37ae5 100644
--- a/core/java/android/hardware/camera2/CaptureRequest.java
+++ b/core/java/android/hardware/camera2/CaptureRequest.java
@@ -1154,7 +1154,7 @@
      * <p>This control (except for MANUAL) is only effective if
      * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} != OFF</code> and any 3A routine is active.</p>
      * <p>ZERO_SHUTTER_LAG will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
-     * contains ZSL. MANUAL will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
+     * contains OPAQUE_REPROCESSING. MANUAL will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
      * contains MANUAL_SENSOR. Other intent values are always supported.</p>
      * <p><b>Possible values:</b>
      * <ul>
@@ -1372,6 +1372,10 @@
      * 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.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
+     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
+     * The camera device may adjust its internal noise reduction parameters for best
+     * image quality based on the {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}, if it is set.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #EDGE_MODE_OFF OFF}</li>
@@ -1387,6 +1391,7 @@
      *
      * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES
      * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
      * @see #EDGE_MODE_OFF
      * @see #EDGE_MODE_FAST
      * @see #EDGE_MODE_HIGH_QUALITY
@@ -1751,18 +1756,28 @@
     /**
      * <p>Mode of operation for the noise reduction algorithm.</p>
      * <p>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.</p>
+     * excessive noise added by the capture process, especially in dark conditions.</p>
+     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
+     * YUV domain.</p>
+     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
+     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
+     * This mode is optional, may not be support by all devices. The application should check
+     * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} before using it.</p>
      * <p>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.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
+     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
+     * may adjust the noise reduction parameters for best image quality based on the
+     * {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor} if it is set.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #NOISE_REDUCTION_MODE_OFF OFF}</li>
      *   <li>{@link #NOISE_REDUCTION_MODE_FAST FAST}</li>
      *   <li>{@link #NOISE_REDUCTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li>
+     *   <li>{@link #NOISE_REDUCTION_MODE_MINIMAL MINIMAL}</li>
      * </ul></p>
      * <p><b>Available values for this device:</b><br>
      * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes}</p>
@@ -1773,9 +1788,11 @@
      *
      * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
      * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
+     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
      * @see #NOISE_REDUCTION_MODE_OFF
      * @see #NOISE_REDUCTION_MODE_FAST
      * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY
+     * @see #NOISE_REDUCTION_MODE_MINIMAL
      */
     @PublicKey
     public static final Key<Integer> NOISE_REDUCTION_MODE =
@@ -2416,6 +2433,52 @@
     public static final Key<Boolean> BLACK_LEVEL_LOCK =
             new Key<Boolean>("android.blackLevel.lock", boolean.class);
 
+    /**
+     * <p>The amount of exposure time increase factor applied to the original output
+     * frame by the application processing before sending for reprocessing.</p>
+     * <p>This is optional, and will be supported if the camera device supports YUV_REPROCESSING
+     * capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains YUV_REPROCESSING).</p>
+     * <p>For some YUV reprocessing use cases, the application may choose to filter the original
+     * output frames to effectively reduce the noise to the same level as a frame that was
+     * captured with longer exposure time. To be more specific, assuming the original captured
+     * images were captured with a sensitivity of S and an exposure time of T, the model in
+     * the camera device is that the amount of noise in the image would be approximately what
+     * would be expected if the original capture parameters had been a sensitivity of
+     * S/effectiveExposureFactor and an exposure time of T*effectiveExposureFactor, rather
+     * than S and T respectively. If the captured images were processed by the application
+     * before being sent for reprocessing, then the application may have used image processing
+     * algorithms and/or multi-frame image fusion to reduce the noise in the
+     * application-processed images (input images). By using the effectiveExposureFactor
+     * control, the application can communicate to the camera device the actual noise level
+     * improvement in the application-processed image. With this information, the camera
+     * device can select appropriate noise reduction and edge enhancement parameters to avoid
+     * excessive noise reduction ({@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}) and insufficient edge
+     * enhancement ({@link CaptureRequest#EDGE_MODE android.edge.mode}) being applied to the reprocessed frames.</p>
+     * <p>For example, for multi-frame image fusion use case, the application may fuse
+     * multiple output frames together to a final frame for reprocessing. When N image are
+     * fused into 1 image for reprocessing, the exposure time increase factor could be up to
+     * square root of N (based on a simple photon shot noise model). The camera device will
+     * adjust the reprocessing noise reduction and edge enhancement parameters accordingly to
+     * produce the best quality images.</p>
+     * <p>This is relative factor, 1.0 indicates the application hasn't processed the input
+     * buffer in a way that affects its effective exposure time.</p>
+     * <p>This control is only effective for YUV reprocessing capture request. For noise
+     * reduction reprocessing, it is only effective when <code>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} != OFF</code>.
+     * Similarly, for edge enhancement reprocessing, it is only effective when
+     * <code>{@link CaptureRequest#EDGE_MODE android.edge.mode} != OFF</code>.</p>
+     * <p><b>Units</b>: Relative exposure time increase factor.</p>
+     * <p><b>Range of valid values:</b><br>
+     * &gt;= 1.0</p>
+     * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
+     *
+     * @see CaptureRequest#EDGE_MODE
+     * @see CaptureRequest#NOISE_REDUCTION_MODE
+     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
+     */
+    @PublicKey
+    public static final Key<Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR =
+            new Key<Float>("android.reprocess.effectiveExposureFactor", float.class);
+
     /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
      * End generated code
      *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index 1396940..5642f6f 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -1627,7 +1627,7 @@
      * <p>This control (except for MANUAL) is only effective if
      * <code>{@link CaptureRequest#CONTROL_MODE android.control.mode} != OFF</code> and any 3A routine is active.</p>
      * <p>ZERO_SHUTTER_LAG will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
-     * contains ZSL. MANUAL will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
+     * contains OPAQUE_REPROCESSING. MANUAL will be supported if {@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities}
      * contains MANUAL_SENSOR. Other intent values are always supported.</p>
      * <p><b>Possible values:</b>
      * <ul>
@@ -1988,6 +1988,10 @@
      * 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.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
+     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
+     * The camera device may adjust its internal noise reduction parameters for best
+     * image quality based on the {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor}, if it is set.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #EDGE_MODE_OFF OFF}</li>
@@ -2003,6 +2007,7 @@
      *
      * @see CameraCharacteristics#EDGE_AVAILABLE_EDGE_MODES
      * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
      * @see #EDGE_MODE_OFF
      * @see #EDGE_MODE_FAST
      * @see #EDGE_MODE_HIGH_QUALITY
@@ -2465,18 +2470,28 @@
     /**
      * <p>Mode of operation for the noise reduction algorithm.</p>
      * <p>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.</p>
+     * excessive noise added by the capture process, especially in dark conditions.</p>
+     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
+     * YUV domain.</p>
+     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
+     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
+     * This mode is optional, may not be support by all devices. The application should check
+     * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes} before using it.</p>
      * <p>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.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
+     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
+     * may adjust the noise reduction parameters for best image quality based on the
+     * {@link CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR android.reprocess.effectiveExposureFactor} if it is set.</p>
      * <p><b>Possible values:</b>
      * <ul>
      *   <li>{@link #NOISE_REDUCTION_MODE_OFF OFF}</li>
      *   <li>{@link #NOISE_REDUCTION_MODE_FAST FAST}</li>
      *   <li>{@link #NOISE_REDUCTION_MODE_HIGH_QUALITY HIGH_QUALITY}</li>
+     *   <li>{@link #NOISE_REDUCTION_MODE_MINIMAL MINIMAL}</li>
      * </ul></p>
      * <p><b>Available values for this device:</b><br>
      * {@link CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES android.noiseReduction.availableNoiseReductionModes}</p>
@@ -2487,9 +2502,11 @@
      *
      * @see CameraCharacteristics#INFO_SUPPORTED_HARDWARE_LEVEL
      * @see CameraCharacteristics#NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
+     * @see CaptureRequest#REPROCESS_EFFECTIVE_EXPOSURE_FACTOR
      * @see #NOISE_REDUCTION_MODE_OFF
      * @see #NOISE_REDUCTION_MODE_FAST
      * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY
+     * @see #NOISE_REDUCTION_MODE_MINIMAL
      */
     @PublicKey
     public static final Key<Integer> NOISE_REDUCTION_MODE =
@@ -3647,6 +3664,52 @@
     public static final Key<Long> SYNC_FRAME_NUMBER =
             new Key<Long>("android.sync.frameNumber", long.class);
 
+    /**
+     * <p>The amount of exposure time increase factor applied to the original output
+     * frame by the application processing before sending for reprocessing.</p>
+     * <p>This is optional, and will be supported if the camera device supports YUV_REPROCESSING
+     * capability ({@link CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES android.request.availableCapabilities} contains YUV_REPROCESSING).</p>
+     * <p>For some YUV reprocessing use cases, the application may choose to filter the original
+     * output frames to effectively reduce the noise to the same level as a frame that was
+     * captured with longer exposure time. To be more specific, assuming the original captured
+     * images were captured with a sensitivity of S and an exposure time of T, the model in
+     * the camera device is that the amount of noise in the image would be approximately what
+     * would be expected if the original capture parameters had been a sensitivity of
+     * S/effectiveExposureFactor and an exposure time of T*effectiveExposureFactor, rather
+     * than S and T respectively. If the captured images were processed by the application
+     * before being sent for reprocessing, then the application may have used image processing
+     * algorithms and/or multi-frame image fusion to reduce the noise in the
+     * application-processed images (input images). By using the effectiveExposureFactor
+     * control, the application can communicate to the camera device the actual noise level
+     * improvement in the application-processed image. With this information, the camera
+     * device can select appropriate noise reduction and edge enhancement parameters to avoid
+     * excessive noise reduction ({@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode}) and insufficient edge
+     * enhancement ({@link CaptureRequest#EDGE_MODE android.edge.mode}) being applied to the reprocessed frames.</p>
+     * <p>For example, for multi-frame image fusion use case, the application may fuse
+     * multiple output frames together to a final frame for reprocessing. When N image are
+     * fused into 1 image for reprocessing, the exposure time increase factor could be up to
+     * square root of N (based on a simple photon shot noise model). The camera device will
+     * adjust the reprocessing noise reduction and edge enhancement parameters accordingly to
+     * produce the best quality images.</p>
+     * <p>This is relative factor, 1.0 indicates the application hasn't processed the input
+     * buffer in a way that affects its effective exposure time.</p>
+     * <p>This control is only effective for YUV reprocessing capture request. For noise
+     * reduction reprocessing, it is only effective when <code>{@link CaptureRequest#NOISE_REDUCTION_MODE android.noiseReduction.mode} != OFF</code>.
+     * Similarly, for edge enhancement reprocessing, it is only effective when
+     * <code>{@link CaptureRequest#EDGE_MODE android.edge.mode} != OFF</code>.</p>
+     * <p><b>Units</b>: Relative exposure time increase factor.</p>
+     * <p><b>Range of valid values:</b><br>
+     * &gt;= 1.0</p>
+     * <p><b>Optional</b> - This value may be {@code null} on some devices.</p>
+     *
+     * @see CaptureRequest#EDGE_MODE
+     * @see CaptureRequest#NOISE_REDUCTION_MODE
+     * @see CameraCharacteristics#REQUEST_AVAILABLE_CAPABILITIES
+     */
+    @PublicKey
+    public static final Key<Float> REPROCESS_EFFECTIVE_EXPOSURE_FACTOR =
+            new Key<Float>("android.reprocess.effectiveExposureFactor", float.class);
+
     /*~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~
      * End generated code
      *~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~@~O@*/