root/content/renderer/media/media_stream_audio_source.cc

DEFINITIONS

1. factory_
2. factory_
3. DoStopSource
4. AddTrack

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/renderer/media/media_stream_audio_source.h"

namespace content {

MediaStreamAudioSource::MediaStreamAudioSource(
    int render_view_id,
    const StreamDeviceInfo& device_info,
    const SourceStoppedCallback& stop_callback,
    MediaStreamDependencyFactory* factory)
    : render_view_id_(render_view_id),
      factory_(factory) {
  SetDeviceInfo(device_info);
  SetStopCallback(stop_callback);
}

MediaStreamAudioSource::MediaStreamAudioSource()
    : render_view_id_(-1),
      factory_(NULL) {
}

MediaStreamAudioSource::~MediaStreamAudioSource() {}

void MediaStreamAudioSource::DoStopSource() {
  if (audio_capturer_.get())
    audio_capturer_->Stop();
}

void MediaStreamAudioSource::AddTrack(
    const blink::WebMediaStreamTrack& track,
    const blink::WebMediaConstraints& constraints,
    const ConstraintsCallback& callback) {
  // TODO(xians): Properly implement for audio sources.
  if (!factory_)
    callback.Run(this, false);

  bool result = true;
  if (!local_audio_source_) {
    result = factory_->InitializeMediaStreamAudioSource(render_view_id_,
                                                        constraints,
                                                        this);
  }
  if (result)
    factory_->CreateLocalAudioTrack(track);
  callback.Run(this, result);
}

}  // namespace content