Add stats for average QP per frame for VP8 (for received video streams).

webrtc/modules/video_coding/main/source/video_coding_impl.h

 /*
  *  Copyright (c) 2012 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.
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_
 #define WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_
 
 #include "webrtc/modules/video_coding/main/interface/video_coding.h"
 
 #include <vector>
 
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/base/thread_checker.h"
 #include "webrtc/modules/video_coding/main/source/codec_database.h"
 #include "webrtc/modules/video_coding/main/source/frame_buffer.h"
 #include "webrtc/modules/video_coding/main/source/generic_decoder.h"
 #include "webrtc/modules/video_coding/main/source/generic_encoder.h"
 #include "webrtc/modules/video_coding/main/source/jitter_buffer.h"
 #include "webrtc/modules/video_coding/main/source/media_optimization.h"
 #include "webrtc/modules/video_coding/main/source/receiver.h"
 #include "webrtc/modules/video_coding/main/source/timing.h"
+#include "webrtc/modules/video_coding/utility/include/qp_parser.h"
 #include "webrtc/system_wrappers/interface/clock.h"
 #include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
 
 namespace webrtc {
 
 class EncodedFrameObserver;
 
 namespace vcm {
 
 class VCMProcessTimer {
@@ skipping 193 matching lines @@
 #endif
   VCMFrameBuffer _frameFromFile;
   bool _scheduleKeyRequest GUARDED_BY(process_crit_sect_);
   size_t max_nack_list_size_ GUARDED_BY(process_crit_sect_);
   EncodedImageCallback* pre_decode_image_callback_ GUARDED_BY(_receiveCritSect);
 
   VCMCodecDataBase _codecDataBase GUARDED_BY(_receiveCritSect);
   VCMProcessTimer _receiveStatsTimer;
   VCMProcessTimer _retransmissionTimer;
   VCMProcessTimer _keyRequestTimer;
+  QpParser qp_parser_;
 };
 
 }  // namespace vcm
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_VIDEO_CODING_VIDEO_CODING_IMPL_H_