diff options
Diffstat (limited to 'src/modules/alsa/alsa-sink.c')
| -rw-r--r-- | src/modules/alsa/alsa-sink.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/modules/alsa/alsa-sink.c b/src/modules/alsa/alsa-sink.c index 07d53880..195bdf6e 100644 --- a/src/modules/alsa/alsa-sink.c +++ b/src/modules/alsa/alsa-sink.c @@ -69,9 +69,12 @@ #define TSCHED_WATERMARK_INC_STEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms -- On underrun, increase watermark by this */ #define TSCHED_WATERMARK_DEC_STEP_USEC (5*PA_USEC_PER_MSEC) /* 5ms -- When everything's great, decrease watermark by this */ #define TSCHED_WATERMARK_VERIFY_AFTER_USEC (20*PA_USEC_PER_SEC) /* 20s -- How long after a drop out recheck if things are good now */ -#define TSCHED_WATERMARK_INC_THRESHOLD_USEC (1*PA_USEC_PER_MSEC) /* 3ms -- If the buffer level ever below this theshold, increase the watermark */ +#define TSCHED_WATERMARK_INC_THRESHOLD_USEC (0*PA_USEC_PER_MSEC) /* 0ms -- If the buffer level ever below this theshold, increase the watermark */ #define TSCHED_WATERMARK_DEC_THRESHOLD_USEC (100*PA_USEC_PER_MSEC) /* 100ms -- If the buffer level didn't drop below this theshold in the verification time, decrease the watermark */ +/* Note that TSCHED_WATERMARK_INC_THRESHOLD_USEC == 0 means tht we + * will increase the watermark only if we hit a real underrun. */ + #define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms -- Sleep at least 10ms on each iteration */ #define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms -- Wakeup at least this long before the buffer runs empty*/ @@ -410,6 +413,7 @@ static int try_recover(struct userdata *u, const char *call, int err) { static size_t check_left_to_play(struct userdata *u, size_t n_bytes, pa_bool_t on_timeout) { size_t left_to_play; + pa_bool_t underrun = FALSE; /* We use <= instead of < for this check here because an underrun * only happens after the last sample was processed, not already when @@ -422,6 +426,7 @@ static size_t check_left_to_play(struct userdata *u, size_t n_bytes, pa_bool_t o /* We got a dropout. What a mess! */ left_to_play = 0; + underrun = TRUE; #ifdef DEBUG_TIMING PA_DEBUG_TRAP; @@ -443,7 +448,7 @@ static size_t check_left_to_play(struct userdata *u, size_t n_bytes, pa_bool_t o pa_bool_t reset_not_before = TRUE; if (!u->first && !u->after_rewind) { - if (left_to_play < u->watermark_inc_threshold) + if (underrun || left_to_play < u->watermark_inc_threshold) increase_watermark(u); else if (left_to_play > u->watermark_dec_threshold) { reset_not_before = FALSE; |