/**
* Play audio received from PJMEDIA
*/
static int pb_thread_func (void *arg)
{
struct bb10_stream* stream = (struct bb10_stream *) arg;
int size = stream->pb_buf_size;
unsigned long nframes = stream->pb_frames;
void *user_data = stream->user_data;
char *buf = stream->pb_buf;
pj_timestamp tstamp;
int result = 0;
int policy;
struct sched_param param;
TRACE_((THIS_FILE, "pb_thread_func: size = %d ", size));
if (pthread_getschedparam(pthread_self(), &policy, ¶m) == 0) {
param.sched_priority = 18;
pthread_setschedparam (pthread_self(), policy, ¶m);
}
pj_bzero (buf, size);
tstamp.u64 = 0;
/* Do the final initialization now the thread has started. */
if ((result = snd_pcm_plugin_prepare(stream->pb_pcm,
SND_PCM_CHANNEL_PLAYBACK)) < 0)
{
TRACE_((THIS_FILE, "pb_thread_func failed prepare = %d", result));
return PJ_SUCCESS;
}
while (!stream->quit) {
pjmedia_frame frame;
frame.type = PJMEDIA_FRAME_TYPE_AUDIO;
/* pointer to buffer filled by PJMEDIA */
frame.buf = buf;
frame.size = size;
frame.timestamp.u64 = tstamp.u64;
frame.bit_info = 0;
/* Read the audio from pjmedia */
result = stream->pb_cb (user_data, &frame);
if (result != PJ_SUCCESS || stream->quit)
break;
if (frame.type != PJMEDIA_FRAME_TYPE_AUDIO)
pj_bzero (buf, size);
/* Write 640 to play unit */
result = snd_pcm_plugin_write(stream->pb_pcm,buf,size);
if (result != size || result < 0) {
/* either the write to output device has failed or not the
* full amount of bytes have been written. This usually happens
* when audio routing is being changed by another thread
* Use a status variable for reading the error
*/
snd_pcm_channel_status_t status;
status.channel = SND_PCM_CHANNEL_PLAYBACK;
if (snd_pcm_plugin_status (stream->pb_pcm, &status) < 0) {
/* Call has failed nothing we can do except log and
* continue */
PJ_LOG(4,(THIS_FILE,
"underrun: playback channel status error"));
} else {
/* The status of the error has been read
* RIM say these are expected so we can "re-prepare" the stream
*/
PJ_LOG(4,(THIS_FILE,"PLAY thread ERROR status = %d",
status.status));
if (status.status == SND_PCM_STATUS_READY ||
status.status == SND_PCM_STATUS_UNDERRUN ||
status.status == SND_PCM_STATUS_ERROR )
{
if (snd_pcm_plugin_prepare (stream->pb_pcm,
SND_PCM_CHANNEL_PLAYBACK) < 0)
{
PJ_LOG(4,(THIS_FILE,
"underrun: playback channel prepare error"));
}
}
}
}
tstamp.u64 += nframes;
}
flush_play(stream);
TRACE_((THIS_FILE, "pb_thread_func: Stopped"));
return PJ_SUCCESS;
}
/**
* Play audio received from PJMEDIA
*/
static int pb_thread_func (void *arg)
{
struct bb10_stream* stream = (struct bb10_stream *) arg;
/* Handle from bb10_open_playback */
/* Will be 640 */
int size = stream->pb_buf_size;
/* 160 frames for 20ms */
unsigned long nframes = stream->pb_frames;
void *user_data = stream->user_data;
char *buf = stream->pb_buf;
pj_timestamp tstamp;
int result = 0;
pj_bzero (buf, size);
tstamp.u64 = 0;
TRACE_((THIS_FILE, "pb_thread_func: size = %d ", size));
/* Do the final initialization now the thread has started. */
if ((result = snd_pcm_plugin_prepare(stream->pb_pcm,
SND_PCM_CHANNEL_PLAYBACK)) < 0)
{
close_play_pcm(stream);
TRACE_((THIS_FILE, "pb_thread_func failed prepare = %d", result));
return PJ_SUCCESS;
}
while (!stream->quit) {
pjmedia_frame frame;
frame.type = PJMEDIA_FRAME_TYPE_AUDIO;
/* pointer to buffer filled by PJMEDIA */
frame.buf = buf;
frame.size = size;
frame.timestamp.u64 = tstamp.u64;
frame.bit_info = 0;
result = stream->pb_cb (user_data, &frame);
if (result != PJ_SUCCESS || stream->quit)
break;
if (frame.type != PJMEDIA_FRAME_TYPE_AUDIO)
pj_bzero (buf, size);
/* Write 640 to play unit */
result = snd_pcm_plugin_write(stream->pb_pcm,buf,size);
if (result != size || result < 0) {
snd_pcm_channel_status_t status;
if (snd_pcm_plugin_status (stream->pb_pcm, &status) < 0) {
PJ_LOG(4,(THIS_FILE,
"underrun: playback channel status error"));
continue;
}
if (status.status == SND_PCM_STATUS_READY ||
status.status == SND_PCM_STATUS_UNDERRUN)
{
if (snd_pcm_plugin_prepare (stream->pb_pcm,
SND_PCM_CHANNEL_PLAYBACK) < 0)
{
PJ_LOG(4,(THIS_FILE,
"underrun: playback channel prepare error"));
continue;
}
}
TRACE_((THIS_FILE, "pb_thread_func failed write = %d", result));
}
tstamp.u64 += nframes;
}
flush_play(stream);
close_play_pcm(stream);
TRACE_((THIS_FILE, "pb_thread_func: Stopped"));
return PJ_SUCCESS;
}
