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export both min and max latency that is configured for a sink; add API for querying the requested latency of a sink/source from the main thread

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2225 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2008-04-09 01:16:43 +00:00
parent ad18107223
commit da37a7e93d
6 changed files with 104 additions and 15 deletions
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12
src/pulsecore/sink-input.c
View file

@ -677,13 +677,21 @@ void pa_sink_input_set_max_rewind(pa_sink_input *i, size_t nbytes /* in the sin
pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
pa_sink_input_assert_ref(i);
if (usec < i->sink->min_latency)
if (usec > 0) {
if (i->sink->max_latency > 0 && usec > i->sink->max_latency)
usec = i->sink->max_latency;
if (i->sink->min_latency > 0 && usec < i->sink->min_latency)
usec = i->sink->min_latency;
}
if (PA_SINK_INPUT_LINKED(i->state))
pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
else
else {
i->thread_info.requested_sink_latency = usec;
i->sink->thread_info.requested_latency_valid = FALSE;
}
return usec;
}

39
src/pulsecore/sink.c
View file

@ -188,6 +188,7 @@ pa_sink* pa_sink_new(
s->silence = pa_silence_memblock_new(core->mempool, &s->sample_spec, 0);
s->min_latency = DEFAULT_MIN_LATENCY;
s->max_latency = s->min_latency;
s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
s->thread_info.soft_volume = s->volume;
@ -278,6 +279,8 @@ void pa_sink_put(pa_sink* s) {
pa_assert(s->asyncmsgq);
pa_assert(s->rtpoll);
pa_assert(!s->min_latency || !s->max_latency || s->min_latency <= s->max_latency);
if (s->get_volume && s->set_volume)
s->flags |= PA_SINK_HW_VOLUME_CTRL;
else
@ -1132,13 +1135,20 @@ int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offse
* asyncmsgq and rtpoll fields can be changed without
* problems */
pa_sink_detach_within_thread(s);
break;
return 0;
case PA_SINK_MESSAGE_ATTACH:
/* Reattach all streams */
pa_sink_attach_within_thread(s);
break;
return 0;
case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
pa_usec_t *usec = userdata;
*usec = pa_sink_get_requested_latency_within_thread(s);
return 0;
}
case PA_SINK_MESSAGE_GET_LATENCY:
case PA_SINK_MESSAGE_MAX:
@ -1223,7 +1233,7 @@ void pa_sink_request_rewind(pa_sink*s, size_t nbytes) {
s->request_rewind(s);
}
pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
pa_usec_t result = 0;
pa_sink_input *i;
void *state = NULL;
@ -1239,12 +1249,35 @@ pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
(!result || result > i->thread_info.requested_sink_latency))
result = i->thread_info.requested_sink_latency;
if (result > 0) {
if (s->max_latency > 0 && result > s->max_latency)
result = s->max_latency;
if (s->min_latency > 0 && result < s->min_latency)
result = s->min_latency;
}
s->thread_info.requested_latency = result;
s->thread_info.requested_latency_valid = TRUE;
return result;
}
pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
pa_usec_t usec = 0;
pa_sink_assert_ref(s);
pa_assert(PA_SINK_LINKED(s->state));
if (!PA_SINK_OPENED(s->state))
return 0;
if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) < 0)
return 0;
return usec;
}
void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {
pa_sink_input *i;
void *state = NULL;

7
src/pulsecore/sink.h
View file

@ -91,7 +91,8 @@ struct pa_sink {
pa_memblock *silence;
pa_usec_t min_latency; /* we won't go below this latency setting */
pa_usec_t min_latency; /* we won't go below this latency */
pa_usec_t max_latency; /* An upper limit for the latencies */
int (*set_state)(pa_sink *s, pa_sink_state_t state); /* may be NULL */
int (*set_volume)(pa_sink *s); /* dito */
@ -135,6 +136,7 @@ typedef enum pa_sink_message {
PA_SINK_MESSAGE_GET_MUTE,
PA_SINK_MESSAGE_SET_MUTE,
PA_SINK_MESSAGE_GET_LATENCY,
PA_SINK_MESSAGE_GET_REQUESTED_LATENCY,
PA_SINK_MESSAGE_SET_STATE,
PA_SINK_MESSAGE_PING,
PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER,
@ -191,6 +193,7 @@ void pa_sink_attach(pa_sink *s);
/* The returned value is supposed to be in the time domain of the sound card! */
pa_usec_t pa_sink_get_latency(pa_sink *s);
pa_usec_t pa_sink_get_requested_latency(pa_sink *s);
int pa_sink_update_status(pa_sink*s);
int pa_sink_suspend(pa_sink *s, pa_bool_t suspend);
@ -227,7 +230,7 @@ int pa_sink_process_msg(pa_msgobject *o, int code, void *userdata, int64_t offse
void pa_sink_attach_within_thread(pa_sink *s);
void pa_sink_detach_within_thread(pa_sink *s);
pa_usec_t pa_sink_get_requested_latency(pa_sink *s);
pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s);
void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind);

13
src/pulsecore/source-output.c
View file

@ -364,13 +364,22 @@ pa_usec_t pa_source_output_set_requested_latency(pa_source_output *o, pa_usec_t
pa_source_output_assert_ref(o);
pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
if (usec < o->source->min_latency)
if (usec > 0) {
if (o->source->max_latency > 0 && usec > o->source->max_latency)
usec = o->source->max_latency;
if (o->source->min_latency > 0 && usec < o->source->min_latency)
usec = o->source->min_latency;
}
if (PA_SOURCE_OUTPUT_LINKED(o->state))
pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
else
else {
o->thread_info.requested_source_latency = usec;
o->source->thread_info.requested_latency_valid = FALSE;
}
return usec;
}

39
src/pulsecore/source.c
View file

@ -166,6 +166,7 @@ pa_source* pa_source_new(
s->refresh_volume = s->refresh_muted = FALSE;
s->min_latency = DEFAULT_MIN_LATENCY;
s->max_latency = s->min_latency;
s->get_latency = NULL;
s->set_volume = NULL;
@ -243,6 +244,8 @@ void pa_source_put(pa_source *s) {
pa_assert(s->rtpoll);
pa_assert(s->asyncmsgq);
pa_assert(!s->min_latency || !s->max_latency || s->min_latency <= s->max_latency);
if (s->get_volume && s->set_volume)
s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
else {
@ -616,13 +619,20 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_
* asyncmsgq and rtpoll fields can be changed without
* problems */
pa_source_detach_within_thread(s);
break;
return 0;
case PA_SOURCE_MESSAGE_ATTACH:
/* Reattach all streams */
pa_source_attach_within_thread(s);
break;
return 0;
case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
pa_usec_t *usec = userdata;
*usec = pa_source_get_requested_latency_within_thread(s);
return 0;
}
case PA_SOURCE_MESSAGE_GET_LATENCY:
case PA_SOURCE_MESSAGE_MAX:
@ -683,7 +693,7 @@ void pa_source_attach_within_thread(pa_source *s) {
o->attach(o);
}
pa_usec_t pa_source_get_requested_latency(pa_source *s) {
pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
pa_usec_t result = 0;
pa_source_output *o;
void *state = NULL;
@ -699,12 +709,35 @@ pa_usec_t pa_source_get_requested_latency(pa_source *s) {
(!result || result > o->thread_info.requested_source_latency))
result = o->thread_info.requested_source_latency;
if (result > 0) {
if (s->max_latency > 0 && result > s->max_latency)
result = s->max_latency;
if (s->min_latency > 0 && result < s->min_latency)
result = s->min_latency;
}
s->thread_info.requested_latency = result;
s->thread_info.requested_latency_valid = TRUE;
return result;
}
pa_usec_t pa_source_get_requested_latency(pa_source *s) {
pa_usec_t usec;
pa_source_assert_ref(s);
pa_assert(PA_SOURCE_LINKED(s->state));
if (!PA_SOURCE_OPENED(s->state))
return 0;
if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) < 0)
return 0;
return usec;
}
void pa_source_invalidate_requested_latency(pa_source *s) {
pa_source_assert_ref(s);

5
src/pulsecore/source.h
View file

@ -92,6 +92,7 @@ struct pa_source {
pa_rtpoll *rtpoll;
pa_usec_t min_latency; /* we won't go below this latency setting */
pa_usec_t max_latency; /* An upper limit for the latencies */
int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
int (*set_volume)(pa_source *s); /* dito */
@ -127,6 +128,7 @@ typedef enum pa_source_message {
PA_SOURCE_MESSAGE_GET_MUTE,
PA_SOURCE_MESSAGE_SET_MUTE,
PA_SOURCE_MESSAGE_GET_LATENCY,
PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
PA_SOURCE_MESSAGE_SET_STATE,
PA_SOURCE_MESSAGE_PING,
PA_SOURCE_MESSAGE_ATTACH,
@ -181,6 +183,7 @@ void pa_source_attach(pa_source *s);
/* May be called by everyone, from main context */
pa_usec_t pa_source_get_latency(pa_source *s);
pa_usec_t pa_source_get_requested_latency(pa_source *s);
int pa_source_update_status(pa_source*s);
int pa_source_suspend(pa_source *s, pa_bool_t suspend);
@ -206,7 +209,7 @@ int pa_source_process_msg(pa_msgobject *o, int code, void *userdata, int64_t, pa
void pa_source_attach_within_thread(pa_source *s);
void pa_source_detach_within_thread(pa_source *s);
pa_usec_t pa_source_get_requested_latency(pa_source *s);
pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
/* To be called exclusively by source output drivers, from IO context */