Support texture scaling in Androids MediaEncoder

webrtc/modules/video_coding/utility/quality_scaler.h

 /*
  *  Copyright (c) 2014 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 16 matching lines @@
   QualityScaler();
   void Init(int low_qp_threshold,
             int high_qp_threshold,
             bool use_framerate_reduction);
   void SetMinResolution(int min_width, int min_height);
   void ReportFramerate(int framerate);
   void ReportQP(int qp);
   void ReportDroppedFrame();
   void Reset(int framerate, int bitrate, int width, int height);
   void OnEncodeFrame(const VideoFrame& frame);
-  Resolution GetScaledResolution() const;
+  const Resolution& GetScaledResolution() const;
   const VideoFrame& GetScaledFrame(const VideoFrame& frame);
   int GetTargetFramerate() const;
   int downscale_shift() const { return downscale_shift_; }
 
  private:
   void AdjustScale(bool up);
   void ClearSamples();
 
   Scaler scaler_;
   VideoFrame scaled_frame_;
@@ skipping 10 matching lines @@
   int downscale_shift_;
   int framerate_down_;
   bool use_framerate_reduction_;
   int min_width_;
   int min_height_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_UTILITY_QUALITY_SCALER_H_