/*
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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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#ifndef TALK_APP_WEBRTC_VIDEOSOURCEINTERFACE_H_
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#define TALK_APP_WEBRTC_VIDEOSOURCEINTERFACE_H_
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#include "talk/app/webrtc/mediastreaminterface.h"
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#include "talk/media/base/mediachannel.h"
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namespace webrtc {
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// VideoSourceInterface is a reference counted source used for VideoTracks.
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// The same source can be used in multiple VideoTracks.
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// The methods are only supposed to be called by the PeerConnection
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// implementation.
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class VideoSourceInterface : public MediaSourceInterface {
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public:
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// Get access to the source implementation of cricket::VideoCapturer.
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// This can be used for receiving frames and state notifications.
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// But it should not be used for starting or stopping capturing.
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virtual cricket::VideoCapturer* GetVideoCapturer() = 0;
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// Stop the video capturer.
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virtual void Stop() = 0;
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virtual void Restart() = 0;
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// Adds |output| to the source to receive frames.
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virtual void AddSink(cricket::VideoRenderer* output) = 0;
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virtual void RemoveSink(cricket::VideoRenderer* output) = 0;
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virtual const cricket::VideoOptions* options() const = 0;
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virtual cricket::VideoRenderer* FrameInput() = 0;
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protected:
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virtual ~VideoSourceInterface() {}
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};
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} // namespace webrtc
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#endif // TALK_APP_WEBRTC_VIDEOSOURCEINTERFACE_H_
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