static void *video_thread(void *param)
{
struct video_output *video = param;
uint64_t cur_time = os_gettime_ns();
while (os_event_try(video->stop_event) == EAGAIN) {
/* wait half a frame, update frame */
cur_time += (video->frame_time/2);
os_sleepto_ns(cur_time);
video->cur_video_time = cur_time;
os_event_signal(video->update_event);
/* wait another half a frame, swap and output frames */
cur_time += (video->frame_time/2);
os_sleepto_ns(cur_time);
pthread_mutex_lock(&video->data_mutex);
video_swapframes(video);
video_output_cur_frame(video);
pthread_mutex_unlock(&video->data_mutex);
}
return NULL;
}
static void droptest_cap_data_rate(struct rtmp_stream *stream, size_t size)
{
uint64_t ts = os_gettime_ns();
struct droptest_info info;
info.ts = ts;
info.size = size;
circlebuf_push_back(&stream->droptest_info, &info, sizeof(info));
stream->droptest_size += size;
if (stream->droptest_info.size) {
circlebuf_peek_front(&stream->droptest_info,
&info, sizeof(info));
if (stream->droptest_size > DROPTEST_MAX_BYTES) {
uint64_t elapsed = ts - info.ts;
if (elapsed < 1000000000ULL) {
elapsed = 1000000000ULL - elapsed;
os_sleepto_ns(ts + elapsed);
}
while (stream->droptest_size > DROPTEST_MAX_BYTES) {
circlebuf_pop_front(&stream->droptest_info,
&info, sizeof(info));
stream->droptest_size -= info.size;
}
}
}
}
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 inline void video_sleep(struct obs_core_video *video,
bool raw_active, const bool gpu_active,
uint64_t *p_time, uint64_t interval_ns)
{
struct obs_vframe_info vframe_info;
uint64_t cur_time = *p_time;
uint64_t t = cur_time + interval_ns;
int count;
if (os_sleepto_ns(t)) {
*p_time = t;
count = 1;
} else {
count = (int)((os_gettime_ns() - cur_time) / interval_ns);
*p_time = cur_time + interval_ns * count;
}
video->total_frames += count;
video->lagged_frames += count - 1;
vframe_info.timestamp = cur_time;
vframe_info.count = count;
if (raw_active)
circlebuf_push_back(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
if (gpu_active)
circlebuf_push_back(&video->vframe_info_buffer_gpu,
&vframe_info, sizeof(vframe_info));
}
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;
}
static inline bool mp_media_sleepto(mp_media_t *m)
{
bool timeout = false;
if (!m->next_ns) {
m->next_ns = os_gettime_ns();
} else {
uint64_t t = os_gettime_ns();
const uint64_t timeout_ns = 200000000;
if (m->next_ns > t && (m->next_ns - t) > timeout_ns) {
os_sleepto_ns(t + timeout_ns);
timeout = true;
} else {
os_sleepto_ns(m->next_ns);
}
}
return timeout;
}
static inline void video_sleep(struct obs_core_video *video,
uint64_t *p_time, uint64_t interval_ns)
{
struct obs_vframe_info vframe_info;
uint64_t cur_time = *p_time;
uint64_t t = cur_time + interval_ns;
int count;
if (os_sleepto_ns(t)) {
*p_time = t;
count = 1;
} else {
count = (int)((os_gettime_ns() - cur_time) / interval_ns);
*p_time = cur_time + interval_ns * count;
}
vframe_info.timestamp = cur_time;
vframe_info.count = count;
circlebuf_push_back(&video->vframe_info_buffer, &vframe_info,
sizeof(vframe_info));
}