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first implementation of --soft-fps

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Devaev Maxim
2018-11-02 02:32:28 +03:00
parent 77b5e6eabc
commit fb6331b64a
5 changed files with 38 additions and 15 deletions
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17
src/stream.c
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@@ -321,17 +321,26 @@ static void _stream_expose_picture(struct stream_t *stream, unsigned buf_index)
}
static long double _stream_get_fluency_delay(struct device_t *dev, struct workers_pool_t *pool) {
long double delay = 0;
long double comp_time = 0;
long double min_delay;
long double soft_delay;
for (unsigned number = 0; number < dev->run->n_workers; ++number) {
A_PTHREAD_M_LOCK(&pool->workers[number].last_comp_time_mutex);
if (pool->workers[number].last_comp_time > 0) {
delay += pool->workers[number].last_comp_time;
comp_time += pool->workers[number].last_comp_time;
}
A_PTHREAD_M_UNLOCK(&pool->workers[number].last_comp_time_mutex);
}
// Среднее арифметическое деленное на количество воркеров
return delay / dev->run->n_workers / dev->run->n_workers;
comp_time = comp_time / dev->run->n_workers; // Среднее время работы воркеров
min_delay = comp_time / dev->run->n_workers; // Минимальное время работы размазывается на N воркеров
soft_delay = ((long double)1) / dev->soft_fps; // Искусственное время задержки на основе желаемого FPS
if (min_delay > 0) {
return (min_delay > soft_delay ? min_delay : soft_delay);
}
return min_delay;
}
static int _stream_init_loop(struct device_t *dev, struct workers_pool_t *pool) {