1 /* 2 * Copyright 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef PC_AUDIO_TRACK_H_ 12 #define PC_AUDIO_TRACK_H_ 13 14 #include <string> 15 16 #include "api/media_stream_interface.h" 17 #include "api/scoped_refptr.h" 18 #include "pc/media_stream_track.h" 19 #include "rtc_base/constructor_magic.h" 20 #include "rtc_base/thread_checker.h" 21 22 namespace webrtc { 23 24 class AudioTrack : public MediaStreamTrack<AudioTrackInterface>, 25 public ObserverInterface { 26 protected: 27 // Protected ctor to force use of factory method. 28 AudioTrack(const std::string& label, 29 const rtc::scoped_refptr<AudioSourceInterface>& source); 30 ~AudioTrack() override; 31 32 public: 33 static rtc::scoped_refptr<AudioTrack> Create( 34 const std::string& id, 35 const rtc::scoped_refptr<AudioSourceInterface>& source); 36 37 private: 38 // MediaStreamTrack implementation. 39 std::string kind() const override; 40 41 // AudioTrackInterface implementation. 42 AudioSourceInterface* GetSource() const override; 43 44 void AddSink(AudioTrackSinkInterface* sink) override; 45 void RemoveSink(AudioTrackSinkInterface* sink) override; 46 47 // ObserverInterface implementation. 48 void OnChanged() override; 49 50 private: 51 const rtc::scoped_refptr<AudioSourceInterface> audio_source_; 52 rtc::ThreadChecker thread_checker_; 53 RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AudioTrack); 54 }; 55 56 } // namespace webrtc 57 58 #endif // PC_AUDIO_TRACK_H_ 59