Fix video_loopback on Mac.

webrtc/video/video_quality_test.cc

 /*
  *  Copyright (c) 2015 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.
  */
 #include "webrtc/video/video_quality_test.h"
@@ skipping 81 matching lines @@
     : public webrtc::VideoEncoderConfig::VideoStreamFactoryInterface {
  public:
   explicit VideoStreamFactory(const std::vector<webrtc::VideoStream>& streams)
       : streams_(streams) {}
 
  private:
   std::vector<webrtc::VideoStream> CreateEncoderStreams(
       int width,
       int height,
       const webrtc::VideoEncoderConfig& encoder_config) override {
+    // The highest layer must match the incoming resolution.
+    std::vector<webrtc::VideoStream> streams = streams_;
+    streams[streams_.size() - 1].height = height;
+    streams[streams_.size() - 1].width = width;
     return streams_;

[mflodman, 2016/12/15 14:33:35]

You need to return 'streams', not 'streams_'.

   }
 
   std::vector<webrtc::VideoStream> streams_;
 };
 
 }  // namespace
 
 namespace webrtc {
 
 class VideoAnalyzer : public PacketReceiver,
@@ skipping 1332 matching lines @@
     std::ostringstream str;
     str << receive_logs_++;
     std::string path =
         params_.video.encoded_frame_base_path + "." + str.str() + ".recv.ivf";
     stream->EnableEncodedFrameRecording(rtc::CreatePlatformFile(path),
                                         10000000);
   }
 }
 
 }  // namespace webrtc