bool video_output_wait(video_t video)
{
if (!video) return false;
event_wait(video->update_event);
return event_try(video->stop_event) == EAGAIN;
}
static void *sinewave_thread(void *pdata)
{
struct sinewave_data *swd = pdata;
uint64_t last_time = os_gettime_ns();
uint64_t ts = 0;
double cos_val = 0.0;
uint8_t bytes[480];
while (event_try(swd->event) == EAGAIN) {
if (!os_sleepto_ns(last_time += 10000000))
last_time = os_gettime_ns();
for (size_t i = 0; i < 480; i++) {
cos_val += rate * M_PI_X2;
if (cos_val > M_PI_X2)
cos_val -= M_PI_X2;
double wave = cos(cos_val) * 0.5;
bytes[i] = (uint8_t)((wave+1.0)*0.5 * 255.0);
}
struct source_audio data;
data.data[0] = bytes;
data.frames = 480;
data.speakers = SPEAKERS_MONO;
data.samples_per_sec = 48000;
data.timestamp = ts;
data.format = AUDIO_FORMAT_U8BIT;
obs_source_output_audio(swd->source, &data);
ts += 10000000;
}
return NULL;
}
static void *audio_thread(void *param)
{
struct audio_output *audio = param;
while (event_try(&audio->stop_event) == EAGAIN) {
/* TODO */
}
return NULL;
}
static void *video_thread(void *param)
{
struct video_output *video = param;
uint64_t cur_time = os_gettime_ns();
while (event_try(&video->stop_event) == EAGAIN) {
/* wait half a frame, update frame */
os_sleepto_ns(cur_time += (video->frame_time/2));
video->cur_video_time = cur_time;
event_signal(&video->update_event);
/* wait another half a frame, swap and output frames */
os_sleepto_ns(cur_time += (video->frame_time/2));
video_swapframes(video);
if (video->cur_frame)
media_output_data(video->output, video->cur_frame);
}
return NULL;
}
bool video_output_wait(video_t video)
{
event_wait(&video->update_event);
return event_try(&video->stop_event) == EAGAIN;
}
