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libobs: Add function to get average render time

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Useful for real-time rendering statistics
This commit is contained in:
jp9000
2017-05-12 16:21:51 -07:00
parent 5ba37f81ec
commit cb9a478821
4 changed files with 18 additions and 0 deletions
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11
libobs/obs-video.c
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@@ -586,6 +586,7 @@ void *obs_video_thread(void *param)
{
uint64_t last_time = 0;
uint64_t interval = video_output_get_frame_time(obs->video.video);
uint64_t frame_time_total_ns = 0;
uint64_t fps_total_ns = 0;
uint32_t fps_total_frames = 0;
@@ -599,6 +600,9 @@ void *obs_video_thread(void *param)
profile_register_root(video_thread_name, interval);
while (!video_output_stopped(obs->video.video)) {
uint64_t frame_start = os_gettime_ns();
uint64_t frame_time_ns;
profile_start(video_thread_name);
profile_start(tick_sources_name);
@@ -613,18 +617,25 @@ void *obs_video_thread(void *param)
output_frame();
profile_end(output_frame_name);
frame_time_ns = os_gettime_ns() - frame_start;
profile_end(video_thread_name);
profile_reenable_thread();
video_sleep(&obs->video, &obs->video.video_time, interval);
frame_time_total_ns += frame_time_ns;
fps_total_ns += (obs->video.video_time - last_time);
fps_total_frames++;
if (fps_total_ns >= 1000000000ULL) {
obs->video.video_fps = (double)fps_total_frames /
((double)fps_total_ns / 1000000000.0);
obs->video.video_avg_frame_time_ns =
frame_time_total_ns / (uint64_t)fps_total_frames;
frame_time_total_ns = 0;
fps_total_ns = 0;
fps_total_frames = 0;
}