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node: add xrun counter in clock io

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Add an xrun counter in the clock that accumulated the duration of
xruns. Fill this in in alsa-pcm.

A client could use this to dectect xruns (when it changes) and to align
the position and nsec after an xrun.
This commit is contained in:
Wim Taymans 2023-08-28 12:26:11 +02:00
parent f134abdac0
commit e90cab1cde
2 changed files with 9 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

8
spa/plugins/alsa/alsa-pcm.c
View file

@ -1931,14 +1931,18 @@ static int alsa_recover(struct state *state, int err)
delay = SPA_TIMEVAL_TO_USEC(&diff);
missing = delay * state->rate / SPA_USEC_PER_SEC;
if (missing == 0)
missing = state->threshold;
spa_log_trace(state->log, "%p: xrun of %"PRIu64" usec %"PRIu64,
state, delay, missing);
if (state->clock)
state->clock->xrun += missing;
state->sample_count += missing;
spa_node_call_xrun(&state->callbacks,
SPA_TIMEVAL_TO_USEC(&trigger), delay, NULL);
state->sample_count += missing ? missing : state->threshold;
break;
}
case SND_PCM_STATE_SUSPENDED: