コード例 #1
0
ファイル: pcm_dsnoop.c プロジェクト: NieHao/R7000
static int snd_pcm_dsnoop_drop(snd_pcm_t *pcm)
{
	snd_pcm_direct_t *dsnoop = pcm->private_data;
	if (dsnoop->state == SND_PCM_STATE_OPEN)
		return -EBADFD;
	dsnoop->state = SND_PCM_STATE_SETUP;
	snd_timer_stop(dsnoop->timer);
	return 0;
}
コード例 #2
0
ファイル: alsatimer.cpp プロジェクト: AndreeeCZ/muse
 bool AlsaTimer::stopTimer()
   {
   int err;
   if(TIMER_DEBUG)
     printf("AlsaTimer::stopTimer(this=%p): handle=%p\n",this,handle);
   if ((err = snd_timer_stop(handle)) < 0) {
     fprintf(stderr, "AlsaTimer::stopTimer(): timer stop %i (%s)\n", err, snd_strerror(err));
     return false;
     }
   return true;
   }
コード例 #3
0
ファイル: pcm_dshare.c プロジェクト: ysei/uclinux-2
/*
 *  synchronize hardware pointer (hw_ptr) with ours
 */
static int snd_pcm_dshare_sync_ptr(snd_pcm_t *pcm)
{
	snd_pcm_direct_t *dshare = pcm->private_data;
	snd_pcm_uframes_t slave_hw_ptr, old_slave_hw_ptr, avail;
	snd_pcm_sframes_t diff;
	
	switch (snd_pcm_state(dshare->spcm)) {
	case SND_PCM_STATE_DISCONNECTED:
		dshare->state = SNDRV_PCM_STATE_DISCONNECTED;
		return -ENODEV;
	default:
		break;
	}
	if (dshare->slowptr)
		snd_pcm_hwsync(dshare->spcm);
	old_slave_hw_ptr = dshare->slave_hw_ptr;
	slave_hw_ptr = dshare->slave_hw_ptr = *dshare->spcm->hw.ptr;
	diff = slave_hw_ptr - old_slave_hw_ptr;
	if (diff == 0)		/* fast path */
		return 0;
	if (dshare->state != SND_PCM_STATE_RUNNING &&
	    dshare->state != SND_PCM_STATE_DRAINING)
		/* not really started yet - don't update hw_ptr */
		return 0;
	if (diff < 0) {
		slave_hw_ptr += dshare->slave_boundary;
		diff = slave_hw_ptr - old_slave_hw_ptr;
	}
	dshare->hw_ptr += diff;
	dshare->hw_ptr %= pcm->boundary;
	// printf("sync ptr diff = %li\n", diff);
	if (pcm->stop_threshold >= pcm->boundary)	/* don't care */
		return 0;
	avail = snd_pcm_mmap_playback_avail(pcm);
	if (avail > dshare->avail_max)
		dshare->avail_max = avail;
	if (avail >= pcm->stop_threshold) {
		struct timeval tv;
		snd_timer_stop(dshare->timer);
		gettimeofday(&tv, 0);
		dshare->trigger_tstamp.tv_sec = tv.tv_sec;
		dshare->trigger_tstamp.tv_nsec = tv.tv_usec * 1000L;
		if (dshare->state == SND_PCM_STATE_RUNNING) {
			dshare->state = SND_PCM_STATE_XRUN;
			return -EPIPE;
		}
		dshare->state = SND_PCM_STATE_SETUP;
		/* clear queue to remove pending poll events */
		snd_pcm_direct_clear_timer_queue(dshare);
	}
	return 0;
}
コード例 #4
0
/*
 *  synchronize hardware pointer (hw_ptr) with ours
 */
static int snd_pcm_dmix_sync_ptr(snd_pcm_t *pcm)
{
	snd_pcm_direct_t *dmix = pcm->private_data;
	snd_pcm_uframes_t slave_hw_ptr, old_slave_hw_ptr, avail;
	snd_pcm_sframes_t diff;
	
	switch (snd_pcm_state(dmix->spcm)) {
	case SND_PCM_STATE_DISCONNECTED:
		dmix->state = SND_PCM_STATE_DISCONNECTED;
		return -ENODEV;
	default:
		break;
	}
	if (dmix->slowptr)
		snd_pcm_hwsync(dmix->spcm);
	old_slave_hw_ptr = dmix->slave_hw_ptr;
	slave_hw_ptr = dmix->slave_hw_ptr = *dmix->spcm->hw.ptr;
	diff = slave_hw_ptr - old_slave_hw_ptr;
	if (diff == 0)		/* fast path */
		return 0;
	if (dmix->state != SND_PCM_STATE_RUNNING &&
	    dmix->state != SND_PCM_STATE_DRAINING)
		/* not really started yet - don't update hw_ptr */
		return 0;
	if (diff < 0) {
		slave_hw_ptr += dmix->slave_boundary;
		diff = slave_hw_ptr - old_slave_hw_ptr;
	}
	dmix->hw_ptr += diff;
	dmix->hw_ptr %= pcm->boundary;
	if (pcm->stop_threshold >= pcm->boundary)	/* don't care */
		return 0;
	avail = snd_pcm_mmap_playback_avail(pcm);
	if (avail > dmix->avail_max)
		dmix->avail_max = avail;
	if (avail >= pcm->stop_threshold) {
		snd_timer_stop(dmix->timer);
		gettimestamp(&dmix->trigger_tstamp, pcm->tstamp_type);
		if (dmix->state == SND_PCM_STATE_RUNNING) {
			dmix->state = SND_PCM_STATE_XRUN;
			return -EPIPE;
		}
		dmix->state = SND_PCM_STATE_SETUP;
		/* clear queue to remove pending poll events */
		snd_pcm_direct_clear_timer_queue(dmix);
	}
	return 0;
}
コード例 #5
0
ファイル: pcm_dshare.c プロジェクト: takaswie/alsa-lib
/*
 *  synchronize hardware pointer (hw_ptr) with ours
 */
static int snd_pcm_dshare_sync_ptr0(snd_pcm_t *pcm, snd_pcm_uframes_t slave_hw_ptr)
{
	snd_pcm_direct_t *dshare = pcm->private_data;
	snd_pcm_uframes_t old_slave_hw_ptr, avail;
	snd_pcm_sframes_t diff;
	
	old_slave_hw_ptr = dshare->slave_hw_ptr;
	dshare->slave_hw_ptr = slave_hw_ptr;
	diff = slave_hw_ptr - old_slave_hw_ptr;
	if (diff == 0)		/* fast path */
		return 0;
	if (dshare->state != SND_PCM_STATE_RUNNING &&
	    dshare->state != SND_PCM_STATE_DRAINING)
		/* not really started yet - don't update hw_ptr */
		return 0;
	if (diff < 0) {
		slave_hw_ptr += dshare->slave_boundary;
		diff = slave_hw_ptr - old_slave_hw_ptr;
	}
	dshare->hw_ptr += diff;
	dshare->hw_ptr %= pcm->boundary;
	// printf("sync ptr diff = %li\n", diff);
	if (pcm->stop_threshold >= pcm->boundary)	/* don't care */
		return 0;
	avail = snd_pcm_mmap_playback_avail(pcm);
	if (avail > dshare->avail_max)
		dshare->avail_max = avail;
	if (avail >= pcm->stop_threshold) {
		snd_timer_stop(dshare->timer);
		do_silence(pcm);
		gettimestamp(&dshare->trigger_tstamp, pcm->tstamp_type);
		if (dshare->state == SND_PCM_STATE_RUNNING) {
			dshare->state = SND_PCM_STATE_XRUN;
			return -EPIPE;
		}
		dshare->state = SND_PCM_STATE_SETUP;
		/* clear queue to remove pending poll events */
		snd_pcm_direct_clear_timer_queue(dshare);
	}
	return 0;
}
コード例 #6
0
ファイル: pcm_a2dp.c プロジェクト: fullstory-morgue/btsco
static void a2dp_exit(void)
{
	int err, i;

	err = snd_timer_stop(timer);

	err = snd_timer_close(timer);

	a2dp_lock();

	for (i = 0; i < MAX_CONNECTIONS; i++) {
		snd_pcm_a2dp_t *a2dp = connections[i];

		if (a2dp) {
			connections[i] = NULL;
			a2dp_free(a2dp);
		}
	}

	a2dp_unlock();

}