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libobs: Add video tick callback functions

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Allows the ability to have a callback invoked every time video ticks.
Particularly useful for scripting.
This commit is contained in:
jp9000
2017-12-06 23:13:56 -08:00
parent 9e8a2e333b
commit 0ffc9bbf05
4 changed files with 62 additions and 5 deletions
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33
libobs/obs.c
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@@ -560,7 +560,7 @@ static bool obs_init_data(void)
goto fail;
if (pthread_mutex_init(&data->services_mutex, &attr) != 0)
goto fail;
if (pthread_mutex_init(&obs->data.draw_callbacks_mutex, NULL) != 0)
if (pthread_mutex_init(&obs->data.draw_callbacks_mutex, &attr) != 0)
goto fail;
if (!obs_view_init(&data->main_view))
goto fail;
@@ -619,6 +619,7 @@ static void obs_free_data(void)
pthread_mutex_destroy(&data->services_mutex);
pthread_mutex_destroy(&data->draw_callbacks_mutex);
da_free(data->draw_callbacks);
da_free(data->tick_callbacks);
}
static const char *obs_signals[] = {
@@ -1977,6 +1978,34 @@ void obs_get_audio_monitoring_device(const char **name, const char **id)
*id = obs->audio.monitoring_device_id;
}
void obs_add_tick_callback(
void (*tick)(void *param, float seconds),
void *param)
{
if (!obs)
return;
struct tick_callback data = {tick, param};
pthread_mutex_lock(&obs->data.draw_callbacks_mutex);
da_insert(obs->data.tick_callbacks, 0, &data);
pthread_mutex_unlock(&obs->data.draw_callbacks_mutex);
}
void obs_remove_tick_callback(
void (*tick)(void *param, float seconds),
void *param)
{
if (!obs)
return;
struct tick_callback data = {tick, param};
pthread_mutex_lock(&obs->data.draw_callbacks_mutex);
da_erase_item(obs->data.tick_callbacks, &data);
pthread_mutex_unlock(&obs->data.draw_callbacks_mutex);
}
void obs_add_main_render_callback(
void (*draw)(void *param, uint32_t cx, uint32_t cy),
void *param)
@@ -1987,7 +2016,7 @@ void obs_add_main_render_callback(
struct draw_callback data = {draw, param};
pthread_mutex_lock(&obs->data.draw_callbacks_mutex);
da_push_back(obs->data.draw_callbacks, &data);
da_insert(obs->data.draw_callbacks, 0, &data);
pthread_mutex_unlock(&obs->data.draw_callbacks_mutex);
}