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#include <obs-module.h>
#include "audio-wrapper.h"
#include "source-clone.h"
struct audio_wrapper_info *audio_wrapper_get(bool create)
{
for (uint32_t i = MAX_CHANNELS - 1; i > 0; i--) {
obs_source_t *source = obs_get_output_source(i);
if (!source)
continue;
if (strcmp(obs_source_get_unversioned_id(source),
audio_wrapper_source.id) == 0) {
struct audio_wrapper_info *aw =
obs_obj_get_data(source);
aw->channel = i;
obs_source_release(source);
return aw;
}
obs_source_release(source);
}
if (!create)
return NULL;
obs_source_t *aws = obs_source_create_private(
audio_wrapper_source.id, audio_wrapper_source.id, NULL);
struct audio_wrapper_info *aw = obs_obj_get_data(aws);
for (uint32_t i = MAX_CHANNELS - 1; i > 0; i--) {
obs_source_t *source = obs_get_output_source(i);
if (source) {
obs_source_release(source);
continue;
}
obs_set_output_source(i, aws);
aw->channel = i;
obs_source_release(aws);
return aw;
}
obs_source_release(aws);
return NULL;
}
void audio_wrapper_remove(struct audio_wrapper_info *audio_wrapper,
struct source_clone *clone)
{
da_erase_item(audio_wrapper->clones, &clone);
if (audio_wrapper->clones.num)
return;
obs_source_t *s = obs_get_output_source(audio_wrapper->channel);
if (s) {
if (s == audio_wrapper->source) {
obs_set_output_source(audio_wrapper->channel, NULL);
return;
}
obs_source_release(s);
}
for (uint32_t i = MAX_CHANNELS - 1; i > 0; i--) {
obs_source_t *source = obs_get_output_source(i);
if (!source)
continue;
if (source == audio_wrapper->source) {
obs_set_output_source(audio_wrapper->channel, NULL);
return;
}
obs_source_release(source);
}
}
void audio_wrapper_add(struct audio_wrapper_info *audio_wrapper,
struct source_clone *clone)
{
da_push_back(audio_wrapper->clones, &clone);
}
const char *audio_wrapper_get_name(void *type_data)
{
UNUSED_PARAMETER(type_data);
return "source_clone_audio_wrapper";
}
void *audio_wrapper_create(obs_data_t *settings, obs_source_t *source)
{
UNUSED_PARAMETER(settings);
struct audio_wrapper_info *audio_wrapper =
bzalloc(sizeof(struct audio_wrapper_info));
audio_wrapper->source = source;
return audio_wrapper;
}
void audio_wrapper_destroy(void *data)
{
struct audio_wrapper_info *aw = (struct audio_wrapper_info *)data;
for (size_t i = 0; i < aw->clones.num; i++) {
struct source_clone *clone = aw->clones.array[i];
if (clone->audio_wrapper == aw)
clone->audio_wrapper = NULL;
}
da_free(aw->clones);
bfree(data);
}
bool audio_wrapper_render(void *data, uint64_t *ts_out,
struct obs_source_audio_mix *audio, uint32_t mixers,
size_t channels, size_t sample_rate)
{
UNUSED_PARAMETER(ts_out);
UNUSED_PARAMETER(audio);
UNUSED_PARAMETER(mixers);
UNUSED_PARAMETER(sample_rate);
struct audio_wrapper_info *aw = (struct audio_wrapper_info *)data;
for (size_t i = 0; i < aw->clones.num; i++) {
struct source_clone *clone = aw->clones.array[i];
obs_source_t *source = obs_weak_source_get_source(clone->clone);
if (!source)
continue;
if (obs_source_audio_pending(source)) {
obs_source_release(source);
continue;
}
struct obs_source_audio_mix child_audio;
obs_source_get_audio_mix(source, &child_audio);
uint64_t timestamp = obs_source_get_audio_timestamp(source);
for (size_t mix = 0; mix < MAX_AUDIO_MIXES; mix++) {
if ((mixers & (1 << mix)) == 0)
continue;
pthread_mutex_lock(&clone->audio_mutex);
uint32_t frames = AUDIO_OUTPUT_FRAMES;
for (size_t j = 0; j < channels; j++) {
circlebuf_push_back(
&clone->audio_data[j],
child_audio.output[mix].data[j],
frames * sizeof(float));
}
circlebuf_push_back(&clone->audio_frames, &frames,
sizeof(frames));
circlebuf_push_back(&clone->audio_timestamps,
×tamp, sizeof(timestamp));
pthread_mutex_unlock(&clone->audio_mutex);
break;
}
obs_source_release(source);
}
return false;
}
static void audio_wrapper_enum_sources(void *data,
obs_source_enum_proc_t enum_callback,
void *param, bool active)
{
UNUSED_PARAMETER(active);
struct audio_wrapper_info *aw = (struct audio_wrapper_info *)data;
for (size_t i = 0; i < aw->clones.num; i++) {
struct source_clone *clone = aw->clones.array[i];
obs_source_t *source = obs_weak_source_get_source(clone->clone);
if (!source)
continue;
enum_callback(aw->source, source, param);
obs_source_release(source);
}
}
void audio_wrapper_enum_active_sources(void *data,
obs_source_enum_proc_t enum_callback,
void *param)
{
audio_wrapper_enum_sources(data, enum_callback, param, true);
}
void audio_wrapper_enum_all_sources(void *data,
obs_source_enum_proc_t enum_callback,
void *param)
{
audio_wrapper_enum_sources(data, enum_callback, param, false);
}
struct obs_source_info audio_wrapper_source = {
.id = "source_clone_audio_wrapper_source",
.type = OBS_SOURCE_TYPE_SCENE,
.output_flags = OBS_SOURCE_COMPOSITE | OBS_SOURCE_CAP_DISABLED,
.get_name = audio_wrapper_get_name,
.create = audio_wrapper_create,
.destroy = audio_wrapper_destroy,
.audio_render = audio_wrapper_render,
.enum_active_sources = audio_wrapper_enum_active_sources,
.enum_all_sources = audio_wrapper_enum_all_sources,
};
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