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Commit a31d58f7 authored by Shuzhen Wang's avatar Shuzhen Wang
Browse files

Camera: Clarify AF_REGIONS behavior in capture_result 

If application specifies 0-weight AF_REGIONS in capture request, the
camera device is allowed to override with non-0-weight AF_REGIONS in
capture result.

Test: Build
Bug: 29398609
Change-Id: I771ba45a1ae0fd26fcacc9891aa4444f718f0f3c
parent 22db2e28

core/java/android/hardware/camera2/CaptureRequest.java

+2 −1
Original line number Diff line number Diff line
@@ -1432,7 +1432,8 @@ public final class CaptureRequest extends CameraMetadata<CaptureRequest.Key<?>> 
     * is used, all non-zero weights will have the same effect. A region with 0 weight is

     * ignored.</p>

     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the

     * camera device.</p>

     * camera device. The capture result will either be a zero weight region as well, or

     * the region selected by the camera device as the focus area of interest.</p>

     * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION 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

core/java/android/hardware/camera2/CaptureResult.java

+2 −1
Original line number Diff line number Diff line
@@ -1156,7 +1156,8 @@ public class CaptureResult extends CameraMetadata<CaptureResult.Key<?>> { 
     * is used, all non-zero weights will have the same effect. A region with 0 weight is

     * ignored.</p>

     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the

     * camera device.</p>

     * camera device. The capture result will either be a zero weight region as well, or

     * the region selected by the camera device as the focus area of interest.</p>

     * <p>If the metering region is outside the used {@link CaptureRequest#SCALER_CROP_REGION 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