Passing frame decoded callback to the codec

media/cast/video_receiver/video_decoder.h

 // Copyright 2013 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_CAST_VIDEO_RECEIVER_VIDEO_DECODER_H_
 #define MEDIA_CAST_VIDEO_RECEIVER_VIDEO_DECODER_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_receiver.h"
 
 namespace media {
 namespace cast {
 
 class Vp8Decoder;
 
 // This class is not thread safe; it's only called from the cast video decoder
 // thread.
 class VideoDecoder : public base::NonThreadSafe {
  public:
-  explicit VideoDecoder(const VideoReceiverConfig& video_config);
+  VideoDecoder(const VideoReceiverConfig& video_config,
+               scoped_refptr<CastEnvironment> cast_environment);
   virtual ~VideoDecoder();
 
-  // Decode a video frame. Decoded (raw) frame will be returned in the
-  // provided video_frame.
+  // Decode a video frame. Decoded (raw) frame will be returned via the
+  // provided callback
   bool DecodeVideoFrame(const EncodedVideoFrame* encoded_frame,
                         const base::TimeTicks render_time,
-                        I420VideoFrame* video_frame);
+                        const VideoFrameDecodedCallback& frame_decoded_cb);
 
  private:
   VideoCodec codec_;
   scoped_ptr<Vp8Decoder> vp8_decoder_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoDecoder);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_VIDEO_RECEIVER_VIDEO_DECODER_H_