void audio_get_position(audio_player_t *player, int *position) {
state_t *state = (state_t *) player->internal_state;
AudioTimeStamp ts;
AudioQueueGetCurrentTime(state->queue, NULL, &ts, NULL);
//printf("mSampleTime: %f\n", ts.mSampleTime);
if (state->playing) {
//printf("actual ? time: %f\n", ts.mSampleTime / state->desc.mSampleRate);
}
// *position = ts.mSampleTime;
}
AudioTimeStamp Audio_Queue::currentTime()
{
AudioTimeStamp queueTime;
Boolean discontinuity;
memset(&queueTime, 0, sizeof queueTime);
OSStatus err = AudioQueueGetCurrentTime(m_outAQ, NULL, &queueTime, &discontinuity);
if (err) {
AQ_TRACE("AudioQueueGetCurrentTime failed\n");
}
return queueTime;
}
double Audio_Queue::timePlayedInSeconds() {
double timePlayed = 0;
AudioTimeStamp queueTime;
Boolean discontinuity;
OSStatus err = AudioQueueGetCurrentTime(m_outAQ, NULL, &queueTime, &discontinuity);
if (err) {
goto out;
}
timePlayed = queueTime.mSampleTime / m_streamDesc.mSampleRate;
out:
return timePlayed;
}
double progress() const {
double p = 0;
AudioTimeStamp timeStamp;
OSStatus status = AudioQueueGetCurrentTime (
aqData.mQueue,
NULL,
&timeStamp,
NULL
);
// checkStatus(status);
p = timeStamp.mSampleTime/aqData.mDataFormat.mSampleRate + timeBase;
return p;
}
SInt64 DZAudioQueuePlayer::seek(float time)
{
// Cannot seek if parameters not available or parser/queue not ready.
if (this->_format.mSampleRate <= 0 || this->_format.mFramesPerPacket <= 0) {
return -1;
}
if (this->_parser == NULL || this->_queue == NULL
|| this->_status == DZAudioQueuePlayerStatus_NotReady
|| this->_status == DZAudioQueuePlayerStatus_Error) {
return -1;
}
// Get audio data offset.
SInt64 dataOffset = 0;
UInt32 propertySize = sizeof(dataOffset);
if (dzDebugError(AudioFileStreamGetProperty(this->_parser, kAudioFileStreamProperty_DataOffset, &propertySize, &dataOffset), "Fail to get stream data offset.")) {
return -1;
}
// Reset audio queue to clear the current queue buffer.
if (dzDebugError(AudioQueueReset(this->_queue), "Fail to reset audio queue.")) {
return -1;
}
// Get audio queue current time.
AudioTimeStamp timeStamp;
if (this->_status == DZAudioQueuePlayerStatus_ReadyToStart) {
timeStamp.mSampleTime = 0;
} else if (dzDebugError(AudioQueueGetCurrentTime(this->_queue, NULL, &(timeStamp), NULL),
"Fail to get audio queue current time.")) {
return -1;
}
// Calculate packet offset and so the byte offset.
SInt64 packetOffset = round(time * this->_format.mSampleRate / this->_format.mFramesPerPacket);
SInt64 byteOffset = 0;
UInt32 ioFlag = 0;
if (dzDebugError(AudioFileStreamSeek(this->_parser, packetOffset, &byteOffset, &ioFlag),
"Fail to seek in audio file stream.")) {
return -1;
}
this->_timeAmendment = time - timeStamp.mSampleTime / this->_format.mSampleRate;
return byteOffset + dataOffset;
}
Float64 DZAudioQueuePlayer::getCurrentTime()
{
// 0 if audio queue is not started.
if (this->_queue == NULL || (this->_status != DZAudioQueuePlayerStatus_Running
&& this->_status != DZAudioQueuePlayerStatus_Paused)) {
return 0;
}
// 0 if sample rate is not known.
if (this->_format.mSampleRate == 0) {
return 0;
}
// Get the time elapsed after last seek, plus the amendment.
AudioTimeStamp timeStamp;
if (dzDebugError(AudioQueueGetCurrentTime(this->_queue, NULL, &(timeStamp), NULL),
"Fail to get audio queue current time.")) {
return 0;
}
return timeStamp.mSampleTime / this->_format.mSampleRate + this->_timeAmendment;
}
