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Camera: Clarify AF_REGIONS behavior in capture_result

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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
This commit is contained in:
Shuzhen Wang
2018-02-08 12:44:47 -08:00
parent 22db2e28fb
commit a31d58f7c1
2 changed files with 4 additions and 2 deletions
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3
core/java/android/hardware/camera2/CaptureRequest.java
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@@ -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

3
core/java/android/hardware/camera2/CaptureResult.java
View File

@@ -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