ULONG DeckLinkDevice::Release()
{
long ret = os_atomic_dec_long(&refCount);
if (ret == 0)
delete this;
return ret;
}
void obs_source_deactivate(obs_source_t source, enum view_type type)
{
if (!source) return;
if (os_atomic_dec_long(&source->show_refs) == 0) {
hide_source(source);
obs_source_enum_tree(source, hide_tree, NULL);
}
if (type == MAIN_VIEW) {
if (os_atomic_dec_long(&source->activate_refs) == 0) {
deactivate_source(source);
obs_source_enum_tree(source, deactivate_tree, NULL);
obs_source_set_present_volume(source, 0.0f);
}
}
}
static void hide_tree(obs_source_t parent, obs_source_t child, void *param)
{
if (os_atomic_dec_long(&child->show_refs) == 0)
hide_source(child);
UNUSED_PARAMETER(parent);
UNUSED_PARAMETER(param);
}
void obs_source_release(obs_source_t source)
{
if (!source)
return;
if (os_atomic_dec_long(&source->refs) == 0)
obs_source_destroy(source);
}
static void apply_scene_item_audio_actions(struct obs_scene_item *item,
float **p_buf, uint64_t ts, size_t sample_rate)
{
bool cur_visible = item->visible;
uint64_t frame_num = 0;
size_t deref_count = 0;
float *buf = NULL;
if (p_buf) {
if (!*p_buf)
*p_buf = malloc(AUDIO_OUTPUT_FRAMES * sizeof(float));
buf = *p_buf;
}
pthread_mutex_lock(&item->actions_mutex);
for (size_t i = 0; i < item->audio_actions.num; i++) {
struct item_action action = item->audio_actions.array[i];
uint64_t timestamp = action.timestamp;
uint64_t new_frame_num;
if (timestamp < ts)
timestamp = ts;
new_frame_num = (timestamp - ts) * (uint64_t)sample_rate /
1000000000ULL;
if (ts && new_frame_num >= AUDIO_OUTPUT_FRAMES)
break;
da_erase(item->audio_actions, i--);
item->visible = action.visible;
if (!item->visible)
deref_count++;
if (buf && new_frame_num > frame_num) {
for (; frame_num < new_frame_num; frame_num++)
buf[frame_num] = cur_visible ? 1.0f : 0.0f;
}
cur_visible = item->visible;
}
if (buf) {
for (; frame_num < AUDIO_OUTPUT_FRAMES; frame_num++)
buf[frame_num] = cur_visible ? 1.0f : 0.0f;
}
pthread_mutex_unlock(&item->actions_mutex);
while (deref_count--) {
if (os_atomic_dec_long(&item->active_refs) == 0) {
obs_source_remove_active_child(item->parent->source,
item->source);
}
}
}
static void deactivate_tree(obs_source_t parent, obs_source_t child,
void *param)
{
if (os_atomic_dec_long(&child->activate_refs) == 0)
deactivate_source(child);
UNUSED_PARAMETER(parent);
UNUSED_PARAMETER(param);
}
ULONG STDMETHODCALLTYPE DeckLinkDeviceInstance::Release(void)
{
const long newRefCount = os_atomic_dec_long(&refCount);
if (newRefCount == 0) {
delete this;
return 0;
}
return newRefCount;
}
void DeckLinkOutput::Deactivate(void)
{
std::lock_guard<std::recursive_mutex> lock(deviceMutex);
if (instance)
instance->StopOutput();
instance = nullptr;
os_atomic_dec_long(&activateRefs);
}
void gs_leavecontext(void)
{
if (thread_graphics) {
if (!os_atomic_dec_long(&thread_graphics->ref)) {
graphics_t graphics = thread_graphics;
graphics->exports.device_leavecontext(graphics->device);
pthread_mutex_unlock(&graphics->mutex);
thread_graphics = NULL;
}
}
}
static inline void handle_ts_jump(obs_source_t source, uint64_t expected,
uint64_t ts, uint64_t diff)
{
blog(LOG_DEBUG, "Timestamp for source '%s' jumped by '%"PRIu64"', "
"expected value %"PRIu64", input value %"PRIu64,
source->context.name, diff, expected, ts);
/* if has video, ignore audio data until reset */
if (source->info.output_flags & OBS_SOURCE_ASYNC)
os_atomic_dec_long(&source->av_sync_ref);
else
reset_audio_timing(source, ts);
}
void obs_source_enum_sources(obs_source_t source,
obs_source_enum_proc_t enum_callback,
void *param)
{
if (!source || !source->info.enum_sources || source->enum_refs)
return;
obs_source_addref(source);
os_atomic_inc_long(&source->enum_refs);
source->info.enum_sources(source->context.data, enum_callback, param);
os_atomic_dec_long(&source->enum_refs);
obs_source_release(source);
}
static void enum_source_tree_callback(obs_source_t parent, obs_source_t child,
void *param)
{
struct source_enum_data *data = param;
if (child->info.enum_sources && !child->enum_refs) {
os_atomic_inc_long(&child->enum_refs);
child->info.enum_sources(child->context.data,
enum_source_tree_callback, data);
os_atomic_dec_long(&child->enum_refs);
}
data->enum_callback(parent, child, data->param);
}
bool obs_output_actual_start(obs_output_t *output)
{
bool success = false;
output->stopped = false;
if (output->context.data)
success = output->info.start(output->context.data);
if (success && output->video) {
output->starting_frame_count =
video_output_get_total_frames(output->video);
output->starting_skipped_frame_count =
video_output_get_skipped_frames(output->video);
}
if (output->delay_restart_refs)
os_atomic_dec_long(&output->delay_restart_refs);
return success;
}
bool obs_output_actual_start(obs_output_t *output)
{
bool success = false;
os_event_wait(output->stopping_event);
output->stop_code = 0;
if (output->context.data)
success = output->info.start(output->context.data);
if (success && output->video) {
output->starting_frame_count =
video_output_get_total_frames(output->video);
output->starting_skipped_frame_count =
video_output_get_skipped_frames(output->video);
output->starting_drawn_count = obs->video.total_frames;
output->starting_lagged_count = obs->video.lagged_frames;
}
if (os_atomic_load_long(&output->delay_restart_refs))
os_atomic_dec_long(&output->delay_restart_refs);
return success;
}