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pcm: fix snd_pcm_avail_delay() function

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For capture stream, the delay must be obtained as last, but we need to
update the ring buffer pointers for the avail_update call. So, rearrange
the code a bit and add hwsync call as first.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2010-11-18 09:27:07 +01:00
parent 7c99bd24bc
commit ba9332e919
1 changed files with 7 additions and 3 deletions
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10
src/pcm/pcm.c
View file

@ -2470,18 +2470,22 @@ int snd_pcm_avail_delay(snd_pcm_t *pcm,
snd_pcm_sframes_t *delayp)
{
snd_pcm_sframes_t sf;
int err;
assert(pcm && availp && delayp);
if (CHECK_SANITY(! pcm->setup)) {
SNDMSG("PCM not set up");
return -EIO;
}
sf = pcm->fast_ops->delay(pcm->fast_op_arg, delayp);
if (sf < 0)
return (int)sf;
err = pcm->fast_ops->hwsync(pcm->fast_op_arg);
if (err < 0)
return err;
sf = pcm->fast_ops->avail_update(pcm->fast_op_arg);
if (sf < 0)
return (int)sf;
err = pcm->fast_ops->delay(pcm->fast_op_arg, delayp);
if (err < 0)
return err;
*availp = sf;
return 0;
}