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Side by Side Diff: content/renderer/media/rtc_video_renderer.h

Issue 10918052: create a separate WebMediaPlayer for URL derived from media stream (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: code review Created 8 years, 2 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef CONTENT_RENDERER_MEDIA_LOCAL_VIDEO_RENDERER_H_
6 #define CONTENT_RENDERER_MEDIA_LOCAL_VIDEO_RENDERER_H_
7
8 #include "base/callback.h"
9 #include "content/common/content_export.h"
10 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
11 #include "ui/gfx/size.h"
12 #include "webkit/media/video_frame_provider.h"
13
14 namespace base {
15 class MessageLoopProxy;
16 }
17
18 namespace content {
19
20 // RTCVideoRenderer is a webkit_media::VideoFrameProvider designed for rendering
21 // Video MediaStreamTracks,
22 // http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediastreamtrack
23 // RTCVideoRenderer implements webrtc::VideoRendererInterface in order to render
24 // video frames provided from a webrtc::VideoTrackInteface.
25 // RTCVideoRenderer register itself to the Video Track when the
26 // VideoFrameProvider is started and deregisters itself when it is stopped.
27 // Calls to webrtc::VideoTrackInterface must occur on the main thread.
28 class CONTENT_EXPORT RTCVideoRenderer
29 : NON_EXPORTED_BASE(public webkit_media::VideoFrameProvider),
30 NON_EXPORTED_BASE(public webrtc::VideoRendererInterface) {
31 public:
32 RTCVideoRenderer(
33 webrtc::VideoTrackInterface* video_track,
34 const base::Closure& error_cb,
35 const RepaintCB& repaint_cb);
36
37 // webkit_media::VideoFrameProvider implementation. Called on the main thread.
38 virtual void Start() OVERRIDE;
39 virtual void Stop() OVERRIDE;
40 virtual void Play() OVERRIDE;
41 virtual void Pause() OVERRIDE;
42
43 // webrtc::VideoRendererInterface implementation. May be called on
44 // a different thread.
45 virtual void SetSize(int width, int height) OVERRIDE;
46 virtual void RenderFrame(const cricket::VideoFrame* frame) OVERRIDE;
47
48 protected:
49 virtual ~RTCVideoRenderer();
50
51 private:
52 enum State {
53 kStarted,
54 kPaused,
55 kStopped,
56 };
57
58 void DoRenderFrameOnMainThread(scoped_refptr<media::VideoFrame> video_frame);
59
60 base::Closure error_cb_;
61 RepaintCB repaint_cb_;
62 scoped_refptr<base::MessageLoopProxy> message_loop_proxy_;
63 State state_;
64
65 // The video track the renderer is connected to.
66 scoped_refptr<webrtc::VideoTrackInterface> video_track_;
67
68 DISALLOW_COPY_AND_ASSIGN(RTCVideoRenderer);
69 };
70
71 } // namespace content
72
73 #endif // CONTENT_RENDERER_MEDIA_LOCAL_VIDEO_RENDERER_H_
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