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28 // This file contains the class CaptureRenderAdapter. The class connects a
29 // VideoCapturer to any number of VideoRenders such that the former feeds the
31 // CaptureRenderAdapter is Thread-unsafe. This means that none of its APIs may
32 // be called concurrently.
34 #ifndef TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_
35 #define TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_
39 #include "talk/base/criticalsection.h"
40 #include "talk/base/sigslot.h"
41 #include "talk/media/base/videocapturer.h"
49 class CaptureRenderAdapter : public sigslot::has_slots<> {
51 static CaptureRenderAdapter* Create(VideoCapturer* video_capturer);
52 ~CaptureRenderAdapter();
54 bool AddRenderer(VideoRenderer* video_renderer);
55 bool RemoveRenderer(VideoRenderer* video_renderer);
57 VideoCapturer* video_capturer() { return video_capturer_; }
59 struct VideoRendererInfo {
60 explicit VideoRendererInfo(VideoRenderer* r)
65 VideoRenderer* renderer;
70 // Just pointers since ownership is not handed over to this class.
71 typedef std::vector<VideoRendererInfo> VideoRenderers;
73 explicit CaptureRenderAdapter(VideoCapturer* video_capturer);
76 // Callback for frames received from the capturer.
77 void OnVideoFrame(VideoCapturer* capturer, const VideoFrame* video_frame);
79 void MaybeSetRenderingSize(const VideoFrame* frame);
81 bool IsRendererRegistered(const VideoRenderer& video_renderer) const;
83 VideoRenderers video_renderers_;
84 VideoCapturer* video_capturer_;
85 // Critical section synchronizing the capture thread.
86 mutable talk_base::CriticalSection capture_crit_;
89 } // namespace cricket
91 #endif // TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_