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Impemented snd_pcm_htimestamp() function.

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This commit is contained in:
Jaroslav Kysela 2008-01-09 13:50:45 +01:00
parent 309a274454
commit 2c1318803f
19 changed files with 182 additions and 14 deletions
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27
src/pcm/pcm_dmix.c
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@ -382,10 +382,7 @@ static int snd_pcm_dmix_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
memset(status, 0, sizeof(*status));
status->state = snd_pcm_dmix_state(pcm);
status->trigger_tstamp = dmix->trigger_tstamp;
if (pcm->tstamp_mode == SND_PCM_TSTAMP_MMAP)
status->tstamp = snd_pcm_hw_fast_tstamp(dmix->spcm);
else
gettimestamp(&status->tstamp, pcm->monotonic);
gettimestamp(&status->tstamp, pcm->monotonic);
status->avail = snd_pcm_mmap_playback_avail(pcm);
status->avail_max = status->avail > dmix->avail_max ? status->avail : dmix->avail_max;
dmix->avail_max = 0;
@ -671,6 +668,27 @@ static snd_pcm_sframes_t snd_pcm_dmix_avail_update(snd_pcm_t *pcm)
return snd_pcm_mmap_playback_avail(pcm);
}
static int snd_pcm_dmix_htimestamp(snd_pcm_t *pcm,
snd_pcm_uframes_t *avail,
snd_htimestamp_t *tstamp)
{
snd_pcm_direct_t *dmix = pcm->private_data;
snd_pcm_uframes_t avail1;
int ok = 0;
while (1) {
if (dmix->state == SND_PCM_STATE_RUNNING ||
dmix->state == SND_PCM_STATE_DRAINING)
snd_pcm_dmix_sync_ptr(pcm);
avail1 = snd_pcm_mmap_playback_avail(pcm);
if (ok && *avail == avail1)
break;
*avail = avail1;
*tstamp = snd_pcm_hw_fast_tstamp(pcm);
}
return 0;
}
static int snd_pcm_dmix_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
{
snd_pcm_direct_t *dmix = pcm->private_data;
@ -731,6 +749,7 @@ static snd_pcm_fast_ops_t snd_pcm_dmix_fast_ops = {
.readn = snd_pcm_dmix_readn,
.avail_update = snd_pcm_dmix_avail_update,
.mmap_commit = snd_pcm_dmix_mmap_commit,
.htimestamp = snd_pcm_dmix_htimestamp,
.poll_descriptors = NULL,
.poll_descriptors_count = NULL,
.poll_revents = snd_pcm_dmix_poll_revents,