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core: add a seperate fixed_latency field for sinks/sources with fixed latency

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This commit is contained in:
Lennart Poettering 2009-04-10 01:26:04 +02:00
parent 9ae8ca2c37
commit f7c229d8f9
7 changed files with 67 additions and 28 deletions
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25
src/pulsecore/sink.c
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@ -50,6 +50,7 @@
#define MIX_BUFFER_LENGTH (PA_PAGE_SIZE)
#define ABSOLUTE_MIN_LATENCY (500)
#define ABSOLUTE_MAX_LATENCY (10*PA_USEC_PER_SEC)
#define DEFAULT_FIXED_LATENCY (250*PA_USEC_PER_MSEC)
static PA_DEFINE_CHECK_TYPE(pa_sink, pa_msgobject);
@ -208,6 +209,8 @@ pa_sink* pa_sink_new(
s->muted = data->muted;
s->refresh_volume = s->refresh_muted = FALSE;
s->fixed_latency = flags & PA_SINK_DYNAMIC_LATENCY ? 0 : DEFAULT_FIXED_LATENCY;
reset_callbacks(s);
s->userdata = NULL;
@ -363,8 +366,13 @@ void pa_sink_put(pa_sink* s) {
if (s->flags & PA_SINK_LATENCY)
s->monitor_source->flags |= PA_SOURCE_LATENCY;
if (s->flags & PA_SINK_DYNAMIC_LATENCY)
if (s->flags & PA_SINK_DYNAMIC_LATENCY) {
s->monitor_source->flags |= PA_SOURCE_DYNAMIC_LATENCY;
s->fixed_latency = 0;
} else if (s->fixed_latency <= 0)
s->fixed_latency = DEFAULT_FIXED_LATENCY;
s->monitor_source->fixed_latency = s->fixed_latency;
pa_assert_se(sink_set_state(s, PA_SINK_IDLE) == 0);
@ -1824,6 +1832,9 @@ pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
pa_sink_assert_ref(s);
if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
return PA_CLAMP(s->fixed_latency, s->thread_info.min_latency, s->thread_info.max_latency);
if (s->thread_info.requested_latency_valid)
return s->thread_info.requested_latency;
@ -1839,13 +1850,8 @@ pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
(result == (pa_usec_t) -1 || result > monitor_latency))
result = monitor_latency;
if (result != (pa_usec_t) -1) {
if (result > s->thread_info.max_latency)
result = s->thread_info.max_latency;
if (result < s->thread_info.min_latency)
result = s->thread_info.min_latency;
}
if (result != (pa_usec_t) -1)
result = PA_CLAMP(result, s->thread_info.min_latency, s->thread_info.max_latency);
s->thread_info.requested_latency = result;
s->thread_info.requested_latency_valid = TRUE;
@ -1934,6 +1940,9 @@ void pa_sink_invalidate_requested_latency(pa_sink *s) {
pa_sink_assert_ref(s);
if (!(s->flags & PA_SINK_DYNAMIC_LATENCY))
return;
s->thread_info.requested_latency_valid = FALSE;
if (PA_SINK_IS_LINKED(s->thread_info.state)) {