diff --git a/webrtc/api/android/java/src/org/webrtc/Camera2Session.java b/webrtc/api/android/java/src/org/webrtc/Camera2Session.java index 863d4217cf..1125204358 100644 --- a/webrtc/api/android/java/src/org/webrtc/Camera2Session.java +++ b/webrtc/api/android/java/src/org/webrtc/Camera2Session.java @@ -168,6 +168,7 @@ public class Camera2Session implements CameraSession { captureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON); captureRequestBuilder.set(CaptureRequest.CONTROL_AE_LOCK, false); + chooseStabilizationMode(captureRequestBuilder); captureRequestBuilder.addTarget(surface); session.setRepeatingRequest( @@ -221,6 +222,39 @@ public class Camera2Session implements CameraSession { Logging.d(TAG, "Camera device successfully started."); callback.onDone(Camera2Session.this); } + + // Prefers optical stabilization over software stabilization if available. Only enables one of + // the stabilization modes at a time because having both enabled can cause strange results. + private void chooseStabilizationMode(CaptureRequest.Builder captureRequestBuilder) { + final int[] availableOpticalStabilization = cameraCharacteristics.get( + CameraCharacteristics.LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION); + if (availableOpticalStabilization != null) { + for (int mode : availableOpticalStabilization) { + if (mode == CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_ON) { + captureRequestBuilder.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE, + CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_ON); + captureRequestBuilder.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE, + CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_OFF); + Logging.d(TAG, "Using optical stabilization."); + return; + } + } + } + // If no optical mode is available, try software. + final int[] availableVideoStabilization = cameraCharacteristics.get( + CameraCharacteristics.CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES); + for (int mode : availableVideoStabilization) { + if (mode == CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_ON) { + captureRequestBuilder.set(CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE, + CaptureRequest.CONTROL_VIDEO_STABILIZATION_MODE_ON); + captureRequestBuilder.set(CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE, + CaptureRequest.LENS_OPTICAL_STABILIZATION_MODE_OFF); + Logging.d(TAG, "Using video stabilization."); + return; + } + } + Logging.d(TAG, "Stabilization not available."); + } } private class CameraCaptureCallback extends CameraCaptureSession.CaptureCallback {