28e2075280
trunk/talk git-svn-id: http://webrtc.googlecode.com/svn/trunk@4318 4adac7df-926f-26a2-2b94-8c16560cd09d
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
/*
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* libjingle
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* Copyright 2012, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// This file contains the class CaptureRenderAdapter. The class connects a
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// VideoCapturer to any number of VideoRenders such that the former feeds the
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// latter.
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// CaptureRenderAdapter is Thread-unsafe. This means that none of its APIs may
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// be called concurrently.
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#ifndef TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_
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#define TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_
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#include <vector>
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#include "talk/base/criticalsection.h"
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#include "talk/base/sigslot.h"
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#include "talk/media/base/videocapturer.h"
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namespace cricket {
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class VideoCapturer;
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class VideoProcessor;
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class VideoRenderer;
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class CaptureRenderAdapter : public sigslot::has_slots<> {
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public:
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static CaptureRenderAdapter* Create(VideoCapturer* video_capturer);
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~CaptureRenderAdapter();
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bool AddRenderer(VideoRenderer* video_renderer);
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bool RemoveRenderer(VideoRenderer* video_renderer);
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VideoCapturer* video_capturer() { return video_capturer_; }
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private:
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struct VideoRendererInfo {
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explicit VideoRendererInfo(VideoRenderer* r)
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: renderer(r),
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render_width(0),
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render_height(0) {
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}
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VideoRenderer* renderer;
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size_t render_width;
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size_t render_height;
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};
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// Just pointers since ownership is not handed over to this class.
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typedef std::vector<VideoRendererInfo> VideoRenderers;
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explicit CaptureRenderAdapter(VideoCapturer* video_capturer);
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void Init();
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// Callback for frames received from the capturer.
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void OnVideoFrame(VideoCapturer* capturer, const VideoFrame* video_frame);
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void MaybeSetRenderingSize(const VideoFrame* frame);
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bool IsRendererRegistered(const VideoRenderer& video_renderer) const;
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VideoRenderers video_renderers_;
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VideoCapturer* video_capturer_;
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// Critical section synchronizing the capture thread.
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mutable talk_base::CriticalSection capture_crit_;
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};
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} // namespace cricket
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#endif // TALK_MEDIA_BASE_CAPTURERENDERADAPTER_H_
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