Camera2: Update metadata java docs

Java docs for below keys are updated:
- android.edge.mode
- android.noiseReduction.mode

Bug: 12135317
Change-Id: I950d46b90ece2f519e33719427801fc78b36b39c

3 files changed, 32 insertions, 4 deletions

diff --git a/core/java/android/hardware/camera2/CameraMetadata.java b/core/java/android/hardware/camera2/CameraMetadata.java
index 67994cb60c1a..f56feaac5c8f 100644
--- a/core/java/android/hardware/camera2/CameraMetadata.java
+++ b/core/java/android/hardware/camera2/CameraMetadata.java
@@ -758,8 +758,8 @@ public abstract class CameraMetadata {
     public static final int EDGE_MODE_OFF = 0;
 
     /**
-     * <p>Must not slow down frame rate relative to raw
-     * bayer output</p>
+     * <p>Must not slow down frame rate relative to sensor
+     * output</p>
      * @see CaptureRequest#EDGE_MODE
      */
     public static final int EDGE_MODE_FAST = 1;
@@ -823,8 +823,8 @@ public abstract class CameraMetadata {
     public static final int NOISE_REDUCTION_MODE_OFF = 0;
 
     /**
-     * <p>Must not slow down frame rate relative to raw
-     * bayer output</p>
+     * <p>Must not slow down frame rate relative to sensor
+     * output</p>
      * @see CaptureRequest#NOISE_REDUCTION_MODE
      */
     public static final int NOISE_REDUCTION_MODE_FAST = 1;
diff --git a/core/java/android/hardware/camera2/CaptureRequest.java b/core/java/android/hardware/camera2/CaptureRequest.java
index 60b2801c54ab..e47567b268ad 100644
--- a/core/java/android/hardware/camera2/CaptureRequest.java
+++ b/core/java/android/hardware/camera2/CaptureRequest.java
@@ -652,6 +652,13 @@ public final class CaptureRequest extends CameraMetadata implements Parcelable {
     /**
      * <p>Operation mode for edge
      * enhancement</p>
+     * <p>Edge/sharpness/detail enhancement. OFF means no
+     * enhancement will be applied by the HAL.</p>
+     * <p>FAST/HIGH_QUALITY both mean HAL-determined enhancement
+     * will be applied. HIGH_QUALITY mode indicates that the
+     * HAL should use the highest-quality enhancement algorithms,
+     * even if it slows down capture rate. FAST means the HAL should
+     * not slow down capture rate when applying edge enhancement.</p>
      * @see #EDGE_MODE_OFF
      * @see #EDGE_MODE_FAST
      * @see #EDGE_MODE_HIGH_QUALITY
@@ -764,6 +771,13 @@ public final class CaptureRequest extends CameraMetadata implements Parcelable {
     /**
      * <p>Mode of operation for the noise reduction
      * algorithm</p>
+     * <p>Noise filtering control. OFF means no noise reduction
+     * will be applied by the HAL.</p>
+     * <p>FAST/HIGH_QUALITY both mean HAL-determined noise filtering
+     * will be applied. HIGH_QUALITY mode indicates that the HAL
+     * should use the highest-quality noise filtering algorithms,
+     * even if it slows down capture rate. FAST means the HAL should not
+     * slow down capture rate when applying noise filtering.</p>
      * @see #NOISE_REDUCTION_MODE_OFF
      * @see #NOISE_REDUCTION_MODE_FAST
      * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY
diff --git a/core/java/android/hardware/camera2/CaptureResult.java b/core/java/android/hardware/camera2/CaptureResult.java
index 54c69ec242fb..6119fa4b2957 100644
--- a/core/java/android/hardware/camera2/CaptureResult.java
+++ b/core/java/android/hardware/camera2/CaptureResult.java
@@ -348,6 +348,13 @@ public final class CaptureResult extends CameraMetadata {
     /**
      * <p>Operation mode for edge
      * enhancement</p>
+     * <p>Edge/sharpness/detail enhancement. OFF means no
+     * enhancement will be applied by the HAL.</p>
+     * <p>FAST/HIGH_QUALITY both mean HAL-determined enhancement
+     * will be applied. HIGH_QUALITY mode indicates that the
+     * HAL should use the highest-quality enhancement algorithms,
+     * even if it slows down capture rate. FAST means the HAL should
+     * not slow down capture rate when applying edge enhancement.</p>
      * @see #EDGE_MODE_OFF
      * @see #EDGE_MODE_FAST
      * @see #EDGE_MODE_HIGH_QUALITY
@@ -487,6 +494,13 @@ public final class CaptureResult extends CameraMetadata {
     /**
      * <p>Mode of operation for the noise reduction
      * algorithm</p>
+     * <p>Noise filtering control. OFF means no noise reduction
+     * will be applied by the HAL.</p>
+     * <p>FAST/HIGH_QUALITY both mean HAL-determined noise filtering
+     * will be applied. HIGH_QUALITY mode indicates that the HAL
+     * should use the highest-quality noise filtering algorithms,
+     * even if it slows down capture rate. FAST means the HAL should not
+     * slow down capture rate when applying noise filtering.</p>
      * @see #NOISE_REDUCTION_MODE_OFF
      * @see #NOISE_REDUCTION_MODE_FAST
      * @see #NOISE_REDUCTION_MODE_HIGH_QUALITY