Add support for writing raw encoder output to .ivf files.

webrtc/video/video_receive_stream.h

Index: webrtc/video/video_receive_stream.h
diff --git a/webrtc/video/video_receive_stream.h b/webrtc/video/video_receive_stream.h
index 3aca570f99e9d3a96d19a0abc2f56f547029cd44..bdfd1144cb1d5d7c21c60d45d7b550d4a87892a1 100644
--- a/webrtc/video/video_receive_stream.h
+++ b/webrtc/video/video_receive_stream.h
@@ -31,6 +31,7 @@ namespace webrtc {
 
 class CallStats;
 class CongestionController;
+class IvfFileWriter;
 class ProcessThread;
 class VoiceEngine;
 class VieRemb;
@@ -88,6 +89,8 @@ class VideoReceiveStream : public webrtc::VideoReceiveStream,
   void RequestKeyFrame() override;
 
  private:
+  static const bool kEnableFrameRecording = false;

[pbos-webrtc, 2016/04/13 22:01:14]

This (= false) part should go in the cc file I think. And if it's only used in
the .cc file, then keep it inside the .cc file.

[sprang_webrtc, 2016/04/14 07:36:23]

Done.

+
   static bool DecodeThreadFunction(void* ptr);
   void Decode();
 
@@ -110,6 +113,8 @@ class VideoReceiveStream : public webrtc::VideoReceiveStream,
   ViEReceiver* const vie_receiver_;
   ViESyncModule vie_sync_;
   RtpRtcp* const rtp_rtcp_;
+
+  std::unique_ptr<IvfFileWriter> ivf_writer_;
 };
 }  // namespace internal
 }  // namespace webrtc