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alsaloop: Improve xrun_sync - fill missing playback samples

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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2012-02-20 16:41:19 +01:00
parent cefe6f2a49
commit 53107e1e31
1 changed files with 17 additions and 0 deletions
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17
alsaloop/pcmjob.c
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@ -949,6 +949,23 @@ static int xrun_sync(struct loopback *loop)
logit(LOG_CRIT, "%s start failed: %s\n", play->id, snd_strerror(err)); logit(LOG_CRIT, "%s start failed: %s\n", play->id, snd_strerror(err));
return err; return err;
} }
} else if (delay1 < fill) {
diff = (fill - delay1) / play->pitch;
while (diff > 0) {
delay1 = play->buf_size - play->buf_pos;
if (verbose > 6)
snd_output_printf(loop->output,
"sync: playback short, silence filling %li / buf_count=%li\n", (long)delay1, play->buf_count);
if (delay1 > diff)
delay1 = diff;
if ((err = snd_pcm_format_set_silence(play->format, play->buf + play->buf_pos * play->channels, delay1)) < 0)
return err;
play->buf_pos += delay1;
play->buf_pos %= play->buf_size;
play->buf_count += delay1;
diff -= delay1;
}
writeit(play);
} }
if (verbose > 5) { if (verbose > 5) {
snd_output_printf(loop->output, "%s: xrun sync ok\n", loop->id); snd_output_printf(loop->output, "%s: xrun sync ok\n", loop->id);