Log supported camera preview resolutions.

webrtc/api/android/java/src/org/webrtc/Camera2Session.java

 /*
  *  Copyright 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 316 matching lines @@
 
   private void findCaptureFormat() {
     checkIsOnCameraThread();
 
     Range<Integer>[] fpsRanges =
         cameraCharacteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES);
     fpsUnitFactor = Camera2Enumerator.getFpsUnitFactor(fpsRanges);
     List<CaptureFormat.FramerateRange> framerateRanges =
         Camera2Enumerator.convertFramerates(fpsRanges, fpsUnitFactor);
     List<Size> sizes = Camera2Enumerator.getSupportedSizes(cameraCharacteristics);
+    Logging.d(TAG, "Available preview sizes: " + sizes);
     Logging.d(TAG, "Available fps ranges: " + framerateRanges);
 
     if (framerateRanges.isEmpty() || sizes.isEmpty()) {
       reportError("No supported capture formats.");
     }
 
     final CaptureFormat.FramerateRange bestFpsRange =
         CameraEnumerationAndroid.getClosestSupportedFramerateRange(
             framerateRanges, framerate);
 
@@ skipping 122 matching lines @@
     }
     return (cameraOrientation + rotation) % 360;
   }
 
   private void checkIsOnCameraThread() {
     if (Thread.currentThread() != cameraThreadHandler.getLooper().getThread()) {
       throw new IllegalStateException("Wrong thread");
     }
   }
 }