Add QP for FFmpeg H264 decoder.

webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.h

 /*
  *  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.
  *
  */
 
 #ifndef WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_H264_DECODER_IMPL_H_
 #define WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_H264_DECODER_IMPL_H_
 
 #include <memory>
 
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 
 extern "C" {
 #include "third_party/ffmpeg/libavcodec/avcodec.h"
 }  // extern "C"
 
+#include "webrtc/common_video/h264/h264_bitstream_parser.h"
 #include "webrtc/common_video/include/i420_buffer_pool.h"
 
 namespace webrtc {
 
 struct AVCodecContextDeleter {
   void operator()(AVCodecContext* ptr) const { avcodec_free_context(&ptr); }
 };
 struct AVFrameDeleter {
   void operator()(AVFrame* ptr) const { av_frame_free(&ptr); }
 };
@@ skipping 37 matching lines @@
   void ReportError();
 
   I420BufferPool pool_;
   std::unique_ptr<AVCodecContext, AVCodecContextDeleter> av_context_;
   std::unique_ptr<AVFrame, AVFrameDeleter> av_frame_;
 
   DecodedImageCallback* decoded_image_callback_;
 
   bool has_reported_init_;
   bool has_reported_error_;
+
+  webrtc::H264BitstreamParser h264_bitstream_parser_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_VIDEO_CODING_CODECS_H264_H264_DECODER_IMPL_H_