void PipelinedModCodec::process_thread()
{
set_thread_name(name());
set_realtime_prio(1);
while (m_running) {
Buffer dataIn;
m_input_queue.wait_and_pop(dataIn);
if (dataIn.getLength() == 0) {
break;
}
Buffer dataOut;
dataOut.setLength(dataIn.getLength());
if (internal_process(&dataIn, &dataOut) == 0) {
m_running = false;
}
m_output_queue.push(std::move(dataOut));
}
m_running = false;
}
/* Reading thread of the buffer. */
static void *read_thread (void *arg)
{
struct out_buf *buf = (struct out_buf *)arg;
int audio_dev_closed = 0;
logit ("entering output buffer thread");
set_realtime_prio ();
LOCK (buf->mutex);
while (1) {
int played = 0;
char play_buf[AUDIO_MAX_PLAY_BYTES];
int play_buf_fill;
int play_buf_pos = 0;
if (buf->reset_dev && !audio_dev_closed) {
audio_reset ();
buf->reset_dev = 0;
}
if (buf->stop)
fifo_buf_clear (&buf->buf);
if (buf->free_callback) {
/* unlock the mutex to make calls to out_buf functions
* possible in the callback */
UNLOCK (buf->mutex);
buf->free_callback ();
LOCK (buf->mutex);
}
debug ("sending the signal");
pthread_cond_broadcast (&buf->ready_cond);
if ((fifo_buf_get_fill(&buf->buf) == 0 || buf->pause
|| buf->stop)
&& !buf->exit) {
if (buf->pause && !audio_dev_closed) {
logit ("Closing the device due to pause");
audio_close ();
audio_dev_closed = 1;
}
debug ("waiting for something in the buffer");
buf->read_thread_waiting = 1;
pthread_cond_wait (&buf->play_cond, &buf->mutex);
debug ("something appeared in the buffer");
}
buf->read_thread_waiting = 0;
if (audio_dev_closed && !buf->pause) {
logit ("Opening the device again after pause");
if (!audio_open(NULL)) {
logit ("Can't reopen the device! sleeping...");
sleep (1); /* there is no way to exit :( */
}
else
audio_dev_closed = 0;
}
if (fifo_buf_get_fill(&buf->buf) == 0) {
if (buf->exit) {
logit ("exit");
break;
}
logit ("buffer empty");
continue;
}
if (buf->pause) {
logit ("paused");
continue;
}
if (buf->stop) {
logit ("stopped");
continue;
}
if (!audio_dev_closed) {
int audio_bpf;
size_t play_buf_frames;
audio_bpf = audio_get_bpf();
play_buf_frames = MIN(audio_get_bps() * AUDIO_MAX_PLAY,
AUDIO_MAX_PLAY_BYTES) / audio_bpf;
play_buf_fill = fifo_buf_get(&buf->buf, play_buf,
play_buf_frames * audio_bpf);
UNLOCK (buf->mutex);
debug ("playing %d bytes", play_buf_fill);
while (play_buf_pos < play_buf_fill) {
played = audio_send_pcm (
play_buf + play_buf_pos,
play_buf_fill - play_buf_pos);
play_buf_pos += played;
}
/*logit ("done sending PCM");*/
/*write (fd, buf->buf + buf->pos, to_play);*/
LOCK (buf->mutex);
/* Update time */
if (played && audio_get_bps())
buf->time += played / (float)audio_get_bps();
buf->hardware_buf_fill = audio_get_buf_fill();
}
}
UNLOCK (buf->mutex);
logit ("exiting");
return NULL;
}