Add delay in FFmpegVideoDecoder::Decode().

media/filters/ffmpeg_video_decoder.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_
 
 #include <list>
 
 #include "base/callback.h"
+#include "base/memory/weak_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/video_decoder.h"
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame_pool.h"
 #include "media/ffmpeg/ffmpeg_deleters.h"
 
 struct AVCodecContext;
 struct AVFrame;
 
 namespace base {
@@ skipping 16 matching lines @@
 
   // VideoDecoder implementation.
   virtual void Initialize(const VideoDecoderConfig& config,
                           bool low_delay,
                           const PipelineStatusCB& status_cb,
                           const OutputCB& output_cb) OVERRIDE;
   virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer,
                       const DecodeCB& decode_cb) OVERRIDE;
   virtual void Reset(const base::Closure& closure) OVERRIDE;
 
+  void DecodeInternal(const scoped_refptr<DecoderBuffer>& buffer,
+                      const DecodeCB& decode_cb);
+
   // Callback called from within FFmpeg to allocate a buffer based on
   // the dimensions of |codec_context|. See AVCodecContext.get_buffer2
   // documentation inside FFmpeg.
   int GetVideoBuffer(struct AVCodecContext* codec_context,
                      AVFrame* frame,
                      int flags);
 
  private:
   enum DecoderState {
     kUninitialized,
@@ skipping 23 matching lines @@
   // FFmpeg structures owned by this object.
   scoped_ptr<AVCodecContext, ScopedPtrAVFreeContext> codec_context_;
   scoped_ptr<AVFrame, ScopedPtrAVFreeFrame> av_frame_;
 
   VideoDecoderConfig config_;
 
   VideoFramePool frame_pool_;
 
   bool decode_nalus_;
 
+  base::WeakPtrFactory<FFmpegVideoDecoder> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(FFmpegVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_