1 /* 2 * libjingle 3 * Copyright 2011 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_AUDIOTRACK_H_ 29 #define TALK_APP_WEBRTC_AUDIOTRACK_H_ 30 31 #include <string> 32 33 #include "talk/app/webrtc/mediastreaminterface.h" 34 #include "talk/app/webrtc/mediastreamtrack.h" 35 #include "talk/app/webrtc/notifier.h" 36 #include "webrtc/base/scoped_ptr.h" 37 #include "webrtc/base/scoped_ref_ptr.h" 38 #include "webrtc/base/thread_checker.h" 39 40 namespace webrtc { 41 42 class AudioTrack : public MediaStreamTrack<AudioTrackInterface>, 43 public ObserverInterface { 44 protected: 45 // Protected ctor to force use of factory method. 46 AudioTrack(const std::string& label, 47 const rtc::scoped_refptr<AudioSourceInterface>& source); 48 ~AudioTrack() override; 49 50 public: 51 static rtc::scoped_refptr<AudioTrack> Create( 52 const std::string& id, 53 const rtc::scoped_refptr<AudioSourceInterface>& source); 54 55 private: 56 // MediaStreamTrack implementation. 57 std::string kind() const override; 58 59 // AudioTrackInterface implementation. 60 AudioSourceInterface* GetSource() const override; 61 62 void AddSink(AudioTrackSinkInterface* sink) override; 63 void RemoveSink(AudioTrackSinkInterface* sink) override; 64 65 // ObserverInterface implementation. 66 void OnChanged() override; 67 68 private: 69 const rtc::scoped_refptr<AudioSourceInterface> audio_source_; 70 rtc::ThreadChecker thread_checker_; 71 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AudioTrack); 72 }; 73 74 } // namespace webrtc 75 76 #endif // TALK_APP_WEBRTC_AUDIOTRACK_H_ 77