alsa: make defines for smoother configuration

Make new defines for the smoother window size and adjust time constants instead
of reusing some unrelated constant.

Increase the smoother window size even more because the bigger it is, the
better. Since we have a 200ms max update interval and the max smoother history
is 64 entries, 10seconds is a good default.

Decrease the smoother adjust time to 1 second. The previous value of 4 seconds
was too much to adapt quickly after a resume.
This commit is contained in:
Wim Taymans 2010-09-09 12:29:59 +02:00 committed by Colin Guthrie
parent 1c29f5582d
commit 1ff360c7b1
2 changed files with 10 additions and 4 deletions

View file

@ -73,6 +73,9 @@
#define TSCHED_MIN_SLEEP_USEC (10*PA_USEC_PER_MSEC) /* 10ms */
#define TSCHED_MIN_WAKEUP_USEC (4*PA_USEC_PER_MSEC) /* 4ms */
#define SMOOTHER_WINDOW_USEC (10*PA_USEC_PER_SEC) /* 10s */
#define SMOOTHER_ADJUST_USEC (1*PA_USEC_PER_SEC) /* 1s */
#define SMOOTHER_MIN_INTERVAL (2*PA_USEC_PER_MSEC) /* 2ms */
#define SMOOTHER_MAX_INTERVAL (200*PA_USEC_PER_MSEC) /* 200ms */
@ -1570,8 +1573,8 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll);
u->smoother = pa_smoother_new(
DEFAULT_TSCHED_BUFFER_USEC*2,
DEFAULT_TSCHED_BUFFER_USEC*2,
SMOOTHER_ADJUST_USEC,
SMOOTHER_WINDOW_USEC,
TRUE,
TRUE,
5,