AudioTrackPrivateMediaStream.cpp [plain text]
#include "config.h"
#include "AudioTrackPrivateMediaStream.h"
#if ENABLE(MEDIA_STREAM)
#include "AudioMediaStreamTrackRenderer.h"
#include "Logging.h"
namespace WebCore {
AudioTrackPrivateMediaStream::AudioTrackPrivateMediaStream(MediaStreamTrackPrivate& track)
: m_streamTrack(track)
, m_audioSource(track.source())
, m_id(track.id())
, m_label(track.label())
, m_renderer { AudioMediaStreamTrackRenderer::create() }
{
track.addObserver(*this);
}
AudioTrackPrivateMediaStream::~AudioTrackPrivateMediaStream()
{
clear();
}
#if !RELEASE_LOG_DISABLED
void AudioTrackPrivateMediaStream::setLogger(const Logger& logger, const void* identifier)
{
TrackPrivateBase::setLogger(logger, identifier);
m_renderer->setLogger(logger, identifier);
}
#endif
void AudioTrackPrivateMediaStream::clear()
{
if (m_isCleared)
return;
m_isCleared = true;
if (m_isPlaying)
m_audioSource->removeAudioSampleObserver(*this);
streamTrack().removeObserver(*this);
m_renderer->clear();
}
void AudioTrackPrivateMediaStream::play()
{
if (m_shouldPlay)
return;
m_shouldPlay = true;
updateRenderer();
}
void AudioTrackPrivateMediaStream::pause()
{
m_shouldPlay = false;
updateRenderer();
}
void AudioTrackPrivateMediaStream::setMuted(bool muted)
{
m_muted = muted;
updateRenderer();
}
void AudioTrackPrivateMediaStream::setVolume(float volume)
{
m_renderer->setVolume(volume);
updateRenderer();
}
float AudioTrackPrivateMediaStream::volume() const
{
return m_renderer->volume();
}
void AudioTrackPrivateMediaStream::audioSamplesAvailable(const MediaTime& sampleTime, const PlatformAudioData& audioData, const AudioStreamDescription& description, size_t sampleCount)
{
m_renderer->pushSamples(sampleTime, audioData, description, sampleCount);
}
void AudioTrackPrivateMediaStream::trackMutedChanged(MediaStreamTrackPrivate&)
{
updateRenderer();
}
void AudioTrackPrivateMediaStream::trackEnabledChanged(MediaStreamTrackPrivate&)
{
updateRenderer();
}
void AudioTrackPrivateMediaStream::trackEnded(MediaStreamTrackPrivate&)
{
updateRenderer();
}
void AudioTrackPrivateMediaStream::updateRenderer()
{
if (!m_shouldPlay || !volume() || m_muted || streamTrack().muted() || streamTrack().ended() || !streamTrack().enabled()) {
stopRenderer();
return;
}
startRenderer();
}
void AudioTrackPrivateMediaStream::startRenderer()
{
ASSERT(isMainThread());
if (m_isPlaying)
return;
m_isPlaying = true;
m_renderer->start();
m_audioSource->addAudioSampleObserver(*this);
}
void AudioTrackPrivateMediaStream::stopRenderer()
{
ASSERT(isMainThread());
if (!m_isPlaying)
return;
m_isPlaying = false;
m_audioSource->removeAudioSampleObserver(*this);
m_renderer->stop();
}
}
#endif // ENABLE(MEDIA_STREAM)