10e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org/*
20e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * libjingle
30e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * Copyright 2012, Google Inc.
40e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *
50e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * Redistribution and use in source and binary forms, with or without
60e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * modification, are permitted provided that the following conditions are met:
70e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *
80e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *  1. Redistributions of source code must retain the above copyright notice,
90e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *     this list of conditions and the following disclaimer.
100e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *  2. Redistributions in binary form must reproduce the above copyright notice,
110e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *     this list of conditions and the following disclaimer in the documentation
120e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *     and/or other materials provided with the distribution.
130e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *  3. The name of the author may not be used to endorse or promote products
140e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *     derived from this software without specific prior written permission.
150e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org *
160e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
170e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
180e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
190e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
200e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
210e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
220e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
230e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
240e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
250e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
260e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org */
270e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
280e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#ifndef TALK_APP_WEBRTC_VIDEOTRACKRENDERERS_H_
290e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#define TALK_APP_WEBRTC_VIDEOTRACKRENDERERS_H_
300e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
310e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#include <vector>
320e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
330e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#include "talk/app/webrtc/mediastreaminterface.h"
340e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#include "talk/media/base/videorenderer.h"
35cf81adffe15fa8ea0f333432e41f6d504148f18abuildbot@webrtc.org#include "webrtc/base/criticalsection.h"
360e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
370e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgnamespace webrtc {
380e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
390e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// Class used for rendering cricket::VideoFrames to multiple renderers of type
400e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// VideoRendererInterface.
410e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// Each VideoTrack owns a VideoTrackRenderers instance.
420e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// The class is thread safe. Rendering to the added VideoRendererInterfaces is
430e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org// done on the same thread as the cricket::VideoRenderer.
440e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.orgclass VideoTrackRenderers : public cricket::VideoRenderer {
450e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org public:
460e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  VideoTrackRenderers();
470e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  ~VideoTrackRenderers();
480e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
490e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  // Implements cricket::VideoRenderer
500e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  virtual bool SetSize(int width, int height, int reserved);
510e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  virtual bool RenderFrame(const cricket::VideoFrame* frame);
520e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
530e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  void AddRenderer(VideoRendererInterface* renderer);
540e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  void RemoveRenderer(VideoRendererInterface* renderer);
550e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  void SetEnabled(bool enable);
560e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
570e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org private:
580e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  struct RenderObserver {
590e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org    explicit RenderObserver(VideoRendererInterface* renderer)
600e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org        : renderer_(renderer),
610e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org          size_set_(false) {
620e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org    }
630e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org    VideoRendererInterface* renderer_;
640e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org    bool size_set_;
650e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  };
660e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
670e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  int width_;
680e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  int height_;
690e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  bool enabled_;
700e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org  std::vector<RenderObserver> renderers_;
710e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
722a86ce22ccc387dfa6f8a98ce3eba5c1e6f9e538buildbot@webrtc.org  rtc::CriticalSection critical_section_;  // Protects the above variables
730e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org};
740e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
750e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org}  // namespace webrtc
760e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org
770e118e7129884fbea117e78d6f2068139a414dbhenrike@webrtc.org#endif  // TALK_APP_WEBRTC_VIDEOTRACKRENDERERS_H_
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