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Merge "camera2: Add some more docs to getConcurrentCameraIds" into rvc-dev

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TreeHugger Robot
2020-05-21 00:15:00 +00:00
committed by Android (Google) Code Review
parent 2a5f86f78c 9c8fe18534
commit d220792d6b
1 changed files with 15 additions and 0 deletions
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15
core/java/android/hardware/camera2/CameraManager.java
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@@ -138,10 +138,25 @@ public final class CameraManager {
* client camera application. Using these camera devices concurrently by two different
* applications is not guaranteed to be supported, however.</p>
*
* <p>For concurrent operation, in chronological order :
* - Applications must first close any open cameras that have sessions configured, using
* {@link CameraDevice#close}.
* - All camera devices intended to be operated concurrently, must be opened using
* {@link #openCamera}, before configuring sessions on any of the camera devices.</p>
*
* <p>Each device in a combination, is guaranteed to support stream combinations which may be
* obtained by querying {@link #getCameraCharacteristics} for the key
* {@link android.hardware.camera2.CameraCharacteristics#SCALER_MANDATORY_CONCURRENT_STREAM_COMBINATIONS}.</p>
*
* <p>For concurrent operation, if a camera device has a non null zoom ratio range as specified
* by
* {@link android.hardware.camera2.CameraCharacteristics#CONTROL_ZOOM_RATIO_RANGE},
* its complete zoom ratio range may not apply. Applications can use
* {@link android.hardware.camera2.CaptureRequest#CONTROL_ZOOM_RATIO} >=1 and <=
* {@link android.hardware.camera2.CameraCharacteristics#SCALER_AVAILABLE_MAX_DIGITAL_ZOOM}
* during concurrent operation.
* <p>
*
* <p>The set of combinations may include camera devices that may be in use by other camera API
* clients.</p>
*