Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/api/remoteaudiosource.h

-/*
- *  Copyright 2014 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_API_REMOTEAUDIOSOURCE_H_
-#define WEBRTC_API_REMOTEAUDIOSOURCE_H_
-
-#include <list>
-#include <string>
-
-#include "webrtc/api/call/audio_sink.h"
-#include "webrtc/api/notifier.h"
-#include "webrtc/base/criticalsection.h"
-#include "webrtc/pc/channel.h"
-
-namespace rtc {
-struct Message;
-class Thread;
-}  // namespace rtc
-
-namespace webrtc {
-
-// This class implements the audio source used by the remote audio track.
-class RemoteAudioSource : public Notifier<AudioSourceInterface> {
- public:
-  // Creates an instance of RemoteAudioSource.
-  static rtc::scoped_refptr<RemoteAudioSource> Create(
-      uint32_t ssrc,
-      cricket::VoiceChannel* channel);
-
-  // MediaSourceInterface implementation.
-  MediaSourceInterface::SourceState state() const override;
-  bool remote() const override;
-
-  void AddSink(AudioTrackSinkInterface* sink) override;
-  void RemoveSink(AudioTrackSinkInterface* sink) override;
-
- protected:
-  RemoteAudioSource();
-  ~RemoteAudioSource() override;
-
-  // Post construction initialize where we can do things like save a reference
-  // to ourselves (need to be fully constructed).
-  void Initialize(uint32_t ssrc, cricket::VoiceChannel* channel);
-
- private:
-  typedef std::list<AudioObserver*> AudioObserverList;
-
-  // AudioSourceInterface implementation.
-  void SetVolume(double volume) override;
-  void RegisterAudioObserver(AudioObserver* observer) override;
-  void UnregisterAudioObserver(AudioObserver* observer) override;
-
-  class Sink;
-  void OnData(const AudioSinkInterface::Data& audio);
-  void OnAudioChannelGone();
-
-  class MessageHandler;
-  void OnMessage(rtc::Message* msg);
-
-  AudioObserverList audio_observers_;
-  rtc::CriticalSection sink_lock_;
-  std::list<AudioTrackSinkInterface*> sinks_;
-  rtc::Thread* const main_thread_;
-  SourceState state_;
-};
-
-}  // namespace webrtc
-
-#endif  // WEBRTC_API_REMOTEAUDIOSOURCE_H_