webrtc_m130/pc/remoteaudiosource.h
Steve Anton 6077675ab3 Change RtpReceivers to interact with the media channel directly
Currently, the RtpReceivers take a BaseChannel which is (mostly)
just used for proxying calls to the MediaChannel. This change
removes the extra layer and moves the proxying logic to RtpReceiver.

Bug: webrtc:8587
Change-Id: I01b0e3d57b4629e43d9d148cc94d6dd2941d320e
Reviewed-on: https://webrtc-review.googlesource.com/38120
Commit-Queue: Steve Anton <steveanton@webrtc.org>
Reviewed-by: Taylor Brandstetter <deadbeef@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21562}
2018-01-11 00:16:44 +00:00

81 lines
2.4 KiB
C++

/*
* 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 PC_REMOTEAUDIOSOURCE_H_
#define PC_REMOTEAUDIOSOURCE_H_
#include <list>
#include <string>
#include "api/call/audio_sink.h"
#include "api/notifier.h"
#include "pc/channel.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/messagehandler.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>,
rtc::MessageHandler {
public:
// Creates an instance of RemoteAudioSource.
static rtc::scoped_refptr<RemoteAudioSource> Create(
rtc::Thread* worker_thread,
cricket::VoiceMediaChannel* media_channel,
uint32_t ssrc);
// 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(rtc::Thread* worker_thread,
cricket::VoiceMediaChannel* media_channel,
uint32_t ssrc);
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();
void OnMessage(rtc::Message* msg) override;
AudioObserverList audio_observers_;
rtc::CriticalSection sink_lock_;
std::list<AudioTrackSinkInterface*> sinks_;
rtc::Thread* const main_thread_;
SourceState state_;
};
} // namespace webrtc
#endif // PC_REMOTEAUDIOSOURCE_H_