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-rw-r--r--pcm.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/pcm.c b/pcm.c
index 4e9133a..284a7ac 100644
--- a/pcm.c
+++ b/pcm.c
@@ -547,10 +547,13 @@ struct pcm *pcm_open(unsigned int card, unsigned int device,
547 sparams.tstamp_mode = SNDRV_PCM_TSTAMP_ENABLE; 547 sparams.tstamp_mode = SNDRV_PCM_TSTAMP_ENABLE;
548 sparams.period_step = 1; 548 sparams.period_step = 1;
549 549
550 if (!config->start_threshold) 550 if (!config->start_threshold) {
551 pcm->config.start_threshold = sparams.start_threshold = 551 if (pcm->flags & PCM_IN)
552 config->period_count * config->period_size / 2; 552 pcm->config.start_threshold = sparams.start_threshold = 1;
553 else 553 else
554 pcm->config.start_threshold = sparams.start_threshold =
555 config->period_count * config->period_size / 2;
556 } else
554 sparams.start_threshold = config->start_threshold; 557 sparams.start_threshold = config->start_threshold;
555 558
556 /* pick a high stop threshold - todo: does this need further tuning */ 559 /* pick a high stop threshold - todo: does this need further tuning */