1 /* 2 * libjingle 3 * Copyright 2013 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_ 29 #define TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_ 30 31 #include <vector> 32 33 #include "talk/app/webrtc/mediastreaminterface.h" 34 #include "talk/media/base/videocapturer.h" 35 #include "talk/media/base/videorenderer.h" 36 37 namespace webrtc { 38 39 // RemoteVideoCapturer implements a simple cricket::VideoCapturer which 40 // gets decoded remote video frames from media channel. 41 // It's used as the remote video source's VideoCapturer so that the remote video 42 // can be used as a cricket::VideoCapturer and in that way a remote video stream 43 // can implement the MediaStreamSourceInterface. 44 class RemoteVideoCapturer : public cricket::VideoCapturer { 45 public: 46 RemoteVideoCapturer(); 47 virtual ~RemoteVideoCapturer(); 48 49 // cricket::VideoCapturer implementation. 50 cricket::CaptureState Start( 51 const cricket::VideoFormat& capture_format) override; 52 void Stop() override; 53 bool IsRunning() override; 54 bool GetPreferredFourccs(std::vector<uint32_t>* fourccs) override; 55 bool GetBestCaptureFormat(const cricket::VideoFormat& desired, 56 cricket::VideoFormat* best_format) override; 57 bool IsScreencast() const override; 58 59 private: 60 RTC_DISALLOW_COPY_AND_ASSIGN(RemoteVideoCapturer); 61 }; 62 63 } // namespace webrtc 64 65 #endif // TALK_APP_WEBRTC_REMOTEVIDEOCAPTURER_H_ 66