static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_blocka = NULL;
block_t *p_blockv = NULL;
/* Try grabbing audio frames first */
if( p_sys->fd_audio >= 0 )
p_blocka = GrabAudio( p_demux );
/* Try grabbing video frame */
p_blockv = GrabVideo( p_demux );
if( !p_blocka && !p_blockv )
{
/* Sleep so we do not consume all the cpu, 10ms seems
* like a good value (100fps)
*/
msleep( 10000 );
return 1;
}
if( p_blocka )
{
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_blocka->i_pts );
es_out_Send( p_demux->out, p_sys->p_es_audio, p_blocka );
}
if( p_blockv )
{
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_blockv->i_pts );
es_out_Send( p_demux->out, p_sys->p_es_video, p_blockv );
}
return 1;
}
/*****************************************************************************
* Demux: Processes the audio frame
*****************************************************************************/
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
block_t *p_block = NULL;
do
{
if( p_block )
{
es_out_Send( p_demux->out, p_sys->p_es, p_block );
p_block = NULL;
}
/* Wait for data */
int i_wait = snd_pcm_wait( p_sys->p_alsa_pcm, 10 ); /* See poll() comment in oss.c */
switch( i_wait )
{
case 1:
{
p_block = GrabAudio( p_demux );
if( p_block )
es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
}
/* FIXME: this is a copy paste from below. Shouldn't be needed
* twice. */
case -EPIPE:
/* xrun */
snd_pcm_prepare( p_sys->p_alsa_pcm );
break;
case -ESTRPIPE:
{
/* suspend */
int i_resume = snd_pcm_resume( p_sys->p_alsa_pcm );
if( i_resume < 0 && i_resume != -EAGAIN ) snd_pcm_prepare( p_sys->p_alsa_pcm );
break;
}
/* </FIXME> */
}
} while( p_block && p_sys->i_next_demux_date > 0 &&
p_block->i_pts < p_sys->i_next_demux_date );
if( p_block )
es_out_Send( p_demux->out, p_sys->p_es, p_block );
return 1;
}
