Cast: Basic cast_receiver API for chrome.

content/public/renderer/media_stream_video_sink.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 CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_
 #define CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/media_stream_sink.h"
+#include "media/base/video_capturer_source.h"
 
 namespace media {
 class VideoCaptureFormat;
 class VideoFrame;
 }
 
 namespace blink {
 class WebMediaStreamTrack;
 }
 
 namespace content {
 
-// This callback is used to deliver video frames.
-//
-// |estimated_capture_time| - The capture time of the delivered video
-// frame. This field represents the local time at which either: 1) the frame was
-// generated, if it was done so locally; or 2) the targeted play-out time of the
-// frame, if it was generated from a remote source. Either way, an
-// implementation should not present the frame before this point-in-time. This
-// value is NOT a high-resolution timestamp, and so it should not be used as a
-// presentation time; but, instead, it should be used for buffering playback and
-// for A/V synchronization purposes. NOTE: It is possible for this value to be
-// null if the current implementation lacks this timing information.
-//
-// |video_frame->timestamp()| gives the presentation timestamp of the video
-// frame relative to the first frame generated by the corresponding source.
-// Because a source can start generating frames before a subscriber is added,
-// the first video frame delivered may not have timestamp equal to 0.
-typedef base::Callback<
-  void(const scoped_refptr<media::VideoFrame>& video_frame,
-       const media::VideoCaptureFormat& format,
-       const base::TimeTicks& estimated_capture_time)>
+typedef media::VideoCapturerSource::VideoCaptureDeliverFrameCB
     VideoCaptureDeliverFrameCB;
 
 // MediaStreamVideoSink is an interface used for receiving video frames from a
 // Video Stream Track or a Video Source.
 // http://dev.w3.org/2011/webrtc/editor/getusermedia.html
 // All methods calls will be done from the main render thread.
 class CONTENT_EXPORT MediaStreamVideoSink : public MediaStreamSink {
  public:
   // An implementation of MediaStreamVideoSink should call AddToVideoTrack when
   // it is ready to receive data from a video track. Before the implementation
@@ skipping 12 matching lines @@
                                    const blink::WebMediaStreamTrack& track);
 
  protected:
   ~MediaStreamVideoSink() override {}
 };
 
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_