| // 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 CONTENT_RENDERER_MEDIA_RTC_VIDEO_CAPTURER_H_ |
| #define CONTENT_RENDERER_MEDIA_RTC_VIDEO_CAPTURER_H_ |
| |
| #include <vector> |
| |
| #include "base/compiler_specific.h" |
| #include "content/renderer/media/rtc_video_capture_delegate.h" |
| #include "third_party/libjingle/source/talk/media/base/videocapturer.h" |
| |
| namespace content { |
| class VideoCaptureImplManager; |
| |
| // RtcVideoCapturer implements a simple cricket::VideoCapturer that is used for |
| // VideoCapturing in libJingle and especially in PeerConnections. |
| // The class is created and destroyed on the main render thread. |
| // PeerConnection access cricket::VideoCapturer from a libJingle worker thread. |
| // The video frames are delivered in OnFrameCaptured on a thread owned by |
| // Chrome's video capture implementation. |
| class RtcVideoCapturer |
| : public cricket::VideoCapturer { |
| public: |
| RtcVideoCapturer(const media::VideoCaptureSessionId id, |
| VideoCaptureImplManager* vc_manager, |
| bool is_screencast); |
| virtual ~RtcVideoCapturer(); |
| |
| // cricket::VideoCapturer implementation. |
| // These methods are accessed from a libJingle worker thread. |
| virtual cricket::CaptureState Start( |
| const cricket::VideoFormat& capture_format) OVERRIDE; |
| virtual void Stop() OVERRIDE; |
| virtual bool IsRunning() OVERRIDE; |
| virtual bool GetPreferredFourccs(std::vector<uint32>* fourccs) OVERRIDE; |
| virtual bool GetBestCaptureFormat(const cricket::VideoFormat& desired, |
| cricket::VideoFormat* best_format) OVERRIDE; |
| virtual bool IsScreencast() const OVERRIDE; |
| |
| private: |
| // Frame captured callback method. |
| virtual void OnFrameCaptured(const scoped_refptr<media::VideoFrame>& frame); |
| |
| // State change callback, must be called on same thread as Start is called. |
| void OnStateChange(RtcVideoCaptureDelegate::CaptureState state); |
| |
| const bool is_screencast_; |
| scoped_refptr<RtcVideoCaptureDelegate> delegate_; |
| VideoCaptureState state_; |
| base::TimeDelta first_frame_timestamp_; |
| |
| DISALLOW_COPY_AND_ASSIGN(RtcVideoCapturer); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_RENDERER_MEDIA_RTC_VIDEO_CAPTURER_H_ |