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authorLennart Poettering <lennart@poettering.net>2009-04-01 00:36:18 +0200
committerLennart Poettering <lennart@poettering.net>2009-04-01 00:36:18 +0200
commit5348cc1275255fe423ca228f30c395a1e832811e (patch)
tree776fe55583b682190e1ee4af36f0f4d551b16024 /src
parentaa1ad0df188f308f00a7b648d0d4b64322eaed64 (diff)
increase timing update interval exponentially
Diffstat (limited to 'src')
-rw-r--r--src/pulse/internal.h1
-rw-r--r--src/pulse/stream.c17
2 files changed, 14 insertions, 4 deletions
diff --git a/src/pulse/internal.h b/src/pulse/internal.h
index da94faa0..cf362d99 100644
--- a/src/pulse/internal.h
+++ b/src/pulse/internal.h
@@ -166,6 +166,7 @@ struct pa_stream {
/* Latency interpolation stuff */
pa_time_event *auto_timing_update_event;
+ pa_usec_t auto_timing_interval_usec;
pa_smoother *smoother;
diff --git a/src/pulse/stream.c b/src/pulse/stream.c
index bb53b19d..16342cad 100644
--- a/src/pulse/stream.c
+++ b/src/pulse/stream.c
@@ -41,7 +41,8 @@
#include "fork-detect.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_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_requested = FALSE;
+ s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
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)) {
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))) {
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) {
struct timeval next;
+
+ if (force)
+ s->auto_timing_interval_usec = AUTO_TIMING_INTERVAL_START_USEC;
+
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->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) {
struct timeval 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);
s->auto_timing_update_event = s->mainloop->time_new(s->mainloop, &tv, &auto_timing_update_callback, s);