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increase timing update interval exponentially

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This commit is contained in:
Lennart Poettering 2009-04-01 00:36:18 +02:00
parent aa1ad0df18
commit 5348cc1275
2 changed files with 14 additions and 4 deletions
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1
src/pulse/internal.h
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@ -166,6 +166,7 @@ struct pa_stream {
/* Latency interpolation stuff */ /* Latency interpolation stuff */
pa_time_event *auto_timing_update_event; pa_time_event *auto_timing_update_event;
pa_usec_t auto_timing_interval_usec;
pa_smoother *smoother; pa_smoother *smoother;

17
src/pulse/stream.c
View file

@ -41,7 +41,8 @@
#include "fork-detect.h" #include "fork-detect.h"
#include "internal.h" #include "internal.h"
#define LATENCY_IPOL_INTERVAL_USEC (333*PA_USEC_PER_MSEC) #define AUTO_TIMING_INTERVAL_START_USEC (10*PA_USEC_PER_MSEC)
#define AUTO_TIMING_INTERVAL_END_USEC (1500*PA_USEC_PER_MSEC)
#define SMOOTHER_ADJUST_TIME (1000*PA_USEC_PER_MSEC) #define SMOOTHER_ADJUST_TIME (1000*PA_USEC_PER_MSEC)
#define SMOOTHER_HISTORY_TIME (5000*PA_USEC_PER_MSEC) #define SMOOTHER_HISTORY_TIME (5000*PA_USEC_PER_MSEC)
@ -161,6 +162,7 @@ pa_stream *pa_stream_new_with_proplist(
s->auto_timing_update_event = NULL; s->auto_timing_update_event = NULL;
s->auto_timing_update_requested = FALSE; s->auto_timing_update_requested = FALSE;
s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
reset_callbacks(s); reset_callbacks(s);
@ -308,7 +310,7 @@ static void request_auto_timing_update(pa_stream *s, pa_bool_t force) {
(force || !s->auto_timing_update_requested)) { (force || !s->auto_timing_update_requested)) {
pa_operation *o; pa_operation *o;
/* pa_log("automatically requesting new timing data"); */ /* pa_log("Automatically requesting new timing data"); */
if ((o = pa_stream_update_timing_info(s, NULL, NULL))) { if ((o = pa_stream_update_timing_info(s, NULL, NULL))) {
pa_operation_unref(o); pa_operation_unref(o);
@ -318,9 +320,15 @@ static void request_auto_timing_update(pa_stream *s, pa_bool_t force) {
if (s->auto_timing_update_event) { if (s->auto_timing_update_event) {
struct timeval next; struct timeval next;
if (force)
s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
pa_gettimeofday(&next); pa_gettimeofday(&next);
pa_timeval_add(&next, LATENCY_IPOL_INTERVAL_USEC); pa_timeval_add(&next, s->auto_timing_interval_usec);
s->mainloop->time_restart(s->auto_timing_update_event, &next); s->mainloop->time_restart(s->auto_timing_update_event, &next);
s->auto_timing_interval_usec = PA_MIN(AUTO_TIMING_INTERVAL_END_USEC, s->auto_timing_interval_usec*2);
} }
} }
@ -823,7 +831,8 @@ static void create_stream_complete(pa_stream *s) {
if (s->flags & PA_STREAM_AUTO_TIMING_UPDATE) { if (s->flags & PA_STREAM_AUTO_TIMING_UPDATE) {
struct timeval tv; struct timeval tv;
pa_gettimeofday(&tv); pa_gettimeofday(&tv);
tv.tv_usec += (suseconds_t) LATENCY_IPOL_INTERVAL_USEC; /* every 100 ms */ s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
pa_timeval_add(&tv, s->auto_timing_interval_usec);
pa_assert(!s->auto_timing_update_event); pa_assert(!s->auto_timing_update_event);
s->auto_timing_update_event = s->mainloop->time_new(s->mainloop, &tv, &auto_timing_update_callback, s); s->auto_timing_update_event = s->mainloop->time_new(s->mainloop, &tv, &auto_timing_update_callback, s);