pcm: fix pcm capture dropping samples

Commit ee9ba87d modified the stop threshold for capture and
playback and caused pcm samples to be dropped during capture.
Restore initial stop threshold for capture and leave new value
for playback.

1 files changed, 8 insertions, 3 deletions

diff --git a/pcm.c b/pcm.c
index 010d054..2ef7075 100644
--- a/pcm.c
+++ b/pcm.c
@@ -542,9 +542,14 @@ struct pcm *pcm_open(unsigned int card, unsigned int device,
         sparams.start_threshold = config->start_threshold;
 
     /* pick a high stop threshold - todo: does this need further tuning */
-    if (!config->stop_threshold)
-        pcm->config.stop_threshold = sparams.stop_threshold =
-            config->period_count * config->period_size;
+    if (!config->stop_threshold) {
+        if (pcm->flags & PCM_IN)
+            pcm->config.stop_threshold = sparams.stop_threshold =
+                config->period_count * config->period_size * 10;
+        else
+            pcm->config.stop_threshold = sparams.stop_threshold =
+                config->period_count * config->period_size;
+    }
     else
         sparams.stop_threshold = config->stop_threshold;