db25d2e8c5
This patch tries to only change the interface to VideoTrack, with minimal changes to the implementation. Some points worth noting: VideoTrackRenderers should ultimately be deleted, but it is kept for now since we need an object implementing webrtc::VideoRenderer, and that shouldn't be VideoTrack. BUG=webrtc:5426 TBR=glaznev@webrtc.org // please look at examples Review URL: https://codereview.webrtc.org/1684423002 Cr-Commit-Position: refs/heads/master@{#11775}
57 lines
2.0 KiB
C++
57 lines
2.0 KiB
C++
/*
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* Copyright 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_API_VIDEOTRACKRENDERERS_H_
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#define WEBRTC_API_VIDEOTRACKRENDERERS_H_
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#include <set>
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#include "webrtc/api/mediastreaminterface.h"
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/scoped_ptr.h"
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#include "webrtc/media/base/videorenderer.h"
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namespace webrtc {
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// Class used for rendering cricket::VideoFrames to multiple renderers of type
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// VideoRendererInterface.
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// Each VideoTrack owns a VideoTrackRenderers instance.
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// The class is thread safe. Rendering to the added VideoRendererInterfaces is
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// done on the same thread as the cricket::VideoRenderer.
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class VideoTrackRenderers
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: public cricket::VideoRenderer,
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public rtc::VideoSourceInterface<cricket::VideoFrame> {
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public:
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VideoTrackRenderers();
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~VideoTrackRenderers();
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// Implements cricket::VideoRenderer. If the track is disabled,
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// incoming frames are replaced by black frames.
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virtual bool RenderFrame(const cricket::VideoFrame* frame);
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void AddOrUpdateSink(VideoSinkInterface<cricket::VideoFrame>* sink,
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const rtc::VideoSinkWants& wants) override;
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void RemoveSink(VideoSinkInterface<cricket::VideoFrame>* sink) override;
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void SetEnabled(bool enable);
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private:
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// Pass the frame on to to each registered renderer. Requires
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// critical_section_ already locked.
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void RenderFrameToSinks(const cricket::VideoFrame& frame);
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bool enabled_;
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std::vector<VideoSinkInterface<cricket::VideoFrame>*> sinks_;
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rtc::CriticalSection critical_section_; // Protects the above variables
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};
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} // namespace webrtc
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#endif // WEBRTC_API_VIDEOTRACKRENDERERS_H_
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