bool QGstreamerAudioProbeControl::probeBuffer(GstBuffer *buffer)
{
qint64 position = GST_BUFFER_TIMESTAMP(buffer);
position = position >= 0
? position / G_GINT64_CONSTANT(1000) // microseconds
: -1;
QByteArray data;
#if GST_CHECK_VERSION(1,0,0)
GstMapInfo info;
if (gst_buffer_map(buffer, &info, GST_MAP_READ)) {
data = QByteArray(reinterpret_cast<const char *>(info.data), info.size);
gst_buffer_unmap(buffer, &info);
} else {
return true;
}
#else
data = QByteArray(reinterpret_cast<const char *>(buffer->data), buffer->size);
#endif
QMutexLocker locker(&m_bufferMutex);
if (m_format.isValid()) {
if (!m_pendingBuffer.isValid())
QMetaObject::invokeMethod(this, "bufferProbed", Qt::QueuedConnection);
m_pendingBuffer = QAudioBuffer(data, m_format, position);
}
return true;
}
void QGstreamerAudioProbeControl::bufferProbed()
{
QAudioBuffer audioBuffer;
{
QMutexLocker locker(&m_bufferMutex);
if (!m_pendingBuffer.isValid())
return;
audioBuffer = m_pendingBuffer;
m_pendingBuffer = QAudioBuffer();
}
emit audioBufferProbed(audioBuffer);
}
void MFAudioProbeControl::bufferProbed(const char *data, quint32 size, const QAudioFormat& format, qint64 startTime)
{
if (!format.isValid())
return;
QAudioBuffer audioBuffer = QAudioBuffer(QByteArray(data, size), format, startTime);
{
QMutexLocker locker(&m_bufferMutex);
m_pendingBuffer = audioBuffer;
QMetaObject::invokeMethod(this, "bufferProbed", Qt::QueuedConnection);
}
}
void QGstreamerAudioProbeControl::bufferProbed(GstBuffer* buffer)
{
GstCaps* caps = gst_buffer_get_caps(buffer);
if (!caps)
return;
QAudioFormat format = QGstUtils::audioFormatForCaps(caps);
gst_caps_unref(caps);
if (!format.isValid())
return;
QAudioBuffer audioBuffer = QAudioBuffer(QByteArray((const char*)buffer->data, buffer->size), format);
{
QMutexLocker locker(&m_bufferMutex);
m_pendingBuffer = audioBuffer;
QMetaObject::invokeMethod(this, "bufferProbed", Qt::QueuedConnection);
}
}
