| // 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_RENDERER_H_ |
| #define CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_RENDERER_H_ |
| |
| #include "base/callback.h" |
| #include "base/memory/ref_counted.h" |
| |
| namespace media { |
| class VideoFrame; |
| } |
| |
| namespace content { |
| |
| // Interface returned by MediaStreamRendererFactory that provides controls for |
| // the flow of video frame callbacks being made. |
| // TODO(wjia): remove ref count. |
| class MediaStreamVideoRenderer |
| : public base::RefCountedThreadSafe<MediaStreamVideoRenderer> { |
| public: |
| typedef base::Callback<void(scoped_refptr<media::VideoFrame>)> RepaintCB; |
| |
| // Start to provide video frames to the caller. |
| virtual void Start() = 0; |
| |
| // Stop to provide video frames to the caller. |
| virtual void Stop() = 0; |
| |
| // Resume to provide video frames to the caller after being paused. |
| virtual void Resume() = 0; |
| |
| // Put the provider in pause state and the caller will not receive video |
| // frames, but the provider might still generate video frames which are |
| // thrown away. |
| virtual void Pause() = 0; |
| |
| protected: |
| friend class base::RefCountedThreadSafe<MediaStreamVideoRenderer>; |
| |
| virtual ~MediaStreamVideoRenderer() {} |
| |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_RENDERER_H_ |