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libobs: Add funcs to determine whether audio active 

Adds functions to allow sources to inform the UI whether the audio is
currently active or not.  Allows the ability to turn on/off the items in
the mixer.
master
jp9000 2019-09-19 23:37:29 -07:00
parent 3baa75c7ca
commit 33c09d91c2
4 changed files with 32 additions and 0 deletions
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1
libobs/obs-internal.h
View File

@ -602,6 +602,7 @@ struct obs_source {
bool audio_failed;
bool audio_pending;
bool pending_stop;
bool audio_active;
bool user_muted;
bool muted;
struct obs_source *next_audio_source;

26
libobs/obs-source.c
View File

@ -72,6 +72,8 @@ static const char *source_signals[] = {
"void update_flags(ptr source, int flags)",
"void audio_sync(ptr source, int out int offset)",
"void audio_mixers(ptr source, in out int mixers)",
"void audio_activate(ptr source)",
"void audio_deactivate(ptr source)",
"void filter_add(ptr source, ptr filter)",
"void filter_remove(ptr source, ptr filter)",
"void reorder_filters(ptr source)",
@ -152,6 +154,7 @@ static bool obs_source_init(struct obs_source *source)
source->volume = 1.0f;
source->sync_offset = 0;
source->balance = 0.5f;
source->audio_active = true;
pthread_mutex_init_value(&source->filter_mutex);
pthread_mutex_init_value(&source->async_mutex);
pthread_mutex_init_value(&source->audio_mutex);
@ -4669,3 +4672,26 @@ float obs_source_get_balance_value(const obs_source_t *source)
? source->balance
: 0.5f;
}
void obs_source_set_audio_active(obs_source_t *source, bool active)
{
if (!obs_source_valid(source, "obs_source_set_audio_active"))
return;
if (os_atomic_set_bool(&source->audio_active, active) == active)
return;
if (active)
obs_source_dosignal(source, "source_audio_activate",
"audio_activate");
else
obs_source_dosignal(source, "source_audio_deactivate",
"audio_deactivate");
}
bool obs_source_audio_active(const obs_source_t *source)
{
return obs_source_valid(source, "obs_source_audio_active")
? os_atomic_load_bool(&source->audio_active)
: false;
}

2
libobs/obs.c
View File

@ -703,6 +703,8 @@ static const char *obs_signals[] = {
"void source_deactivate(ptr source)",
"void source_show(ptr source)",
"void source_hide(ptr source)",
"void source_audio_activate(ptr source)",
"void source_audio_deactivate(ptr source)",
"void source_rename(ptr source, string new_name, string prev_name)",
"void source_volume(ptr source, in out float volume)",
"void source_volume_level(ptr source, float level, float magnitude, "

3
libobs/obs.h
View File

@ -1312,6 +1312,9 @@ EXPORT bool obs_source_async_unbuffered(const obs_source_t *source);
EXPORT void obs_source_set_async_decoupled(obs_source_t *source, bool decouple);
EXPORT bool obs_source_async_decoupled(const obs_source_t *source);
EXPORT void obs_source_set_audio_active(obs_source_t *source, bool show);
EXPORT bool obs_source_audio_active(const obs_source_t *source);
/* ------------------------------------------------------------------------- */
/* Transition-specific functions */
enum obs_transition_target {