From ce73e715c9c822beb797c023700c92bcc08464e7 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sun, 5 Apr 2009 02:46:38 +0200 Subject: introduce pa_{sink|source}_get_latency_within_thread() --- src/pulsecore/source.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'src/pulsecore/source.c') diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c index 1c3377be..252e23ab 100644 --- a/src/pulsecore/source.c +++ b/src/pulsecore/source.c @@ -617,6 +617,32 @@ pa_usec_t pa_source_get_latency(pa_source *s) { return usec; } +/* Called from IO thread */ +pa_usec_t pa_source_get_latency_within_thread(pa_source *s) { + pa_usec_t usec = 0; + pa_msgobject *o; + + pa_source_assert_ref(s); + pa_assert(PA_SOURCE_IS_LINKED(s->thread_info.state)); + + /* The returned value is supposed to be in the time domain of the sound card! */ + + if (s->thread_info.state == PA_SOURCE_SUSPENDED) + return 0; + + if (!(s->flags & PA_SOURCE_LATENCY)) + return 0; + + o = PA_MSGOBJECT(s); + + /* We probably should make this a proper vtable callback instead of going through process_msg() */ + + if (o->process_msg(o, PA_SOURCE_MESSAGE_GET_LATENCY, &usec, 0, NULL) < 0) + return -1; + + return usec; +} + /* Called from main thread */ void pa_source_set_volume(pa_source *s, const pa_cvolume *volume) { pa_cvolume old_virtual_volume; -- cgit