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device-port: Change the latency offset type to a signed int.

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The latency offset type should be signed (int64_t) so we can also add
a negative latency offset.

This also includes changing the type of the sink/source
offsets and updating pacmd so it handles negative numbers.
This commit is contained in:
poljar (Damir Jelić) 2012-06-27 17:38:42 +02:00 • committed by Tanu Kaskinen
parent f6e4bfbbc5
commit bf4091dcf8
7 changed files with 40 additions and 20 deletions
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20
src/pulsecore/source.c
View file

@ -1030,7 +1030,12 @@ pa_usec_t pa_source_get_latency(pa_source *s) {
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) == 0);
usec += s->latency_offset;
/* usec is unsigned, so check that the offset can be added to usec without
* underflowing. */
if (-s->latency_offset <= (int64_t) usec)
usec += s->latency_offset;
else
usec = 0;
return usec;
}
@ -1059,7 +1064,12 @@ pa_usec_t pa_source_get_latency_within_thread(pa_source *s) {
if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0)
return -1;
usec += s->thread_info.latency_offset;
/* usec is unsigned, so check that the offset can be added to usec without
* underflowing. */
if (-s->thread_info.latency_offset <= (int64_t) usec)
usec += s->thread_info.latency_offset;
else
usec = 0;
return usec;
}
@ -2179,7 +2189,7 @@ int pa_source_process_msg(pa_msgobject *object, int code, void *userdata, int64_
return 0;
case PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET:
s->thread_info.latency_offset = (pa_usec_t) offset;
s->thread_info.latency_offset = offset;
return 0;
case PA_SOURCE_MESSAGE_MAX:
@ -2522,13 +2532,13 @@ void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency)
}
/* Called from main thread */
void pa_source_set_latency_offset(pa_source *s, pa_usec_t offset) {
void pa_source_set_latency_offset(pa_source *s, int64_t offset) {
pa_source_assert_ref(s);
s->latency_offset = offset;
if (PA_SOURCE_IS_LINKED(s->state))
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET, NULL, (int64_t) offset, NULL) == 0);
pa_assert_se(pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET, NULL, offset, NULL) == 0);
else
s->thread_info.fixed_latency = offset;
}