void ff_thread_await_progress(ThreadFrame *f, int n, int field) { PerThreadContext *p; atomic_int *progress = f->progress ? (atomic_int*)f->progress->data : NULL; if (!progress || atomic_load_explicit(&progress[field], memory_order_acquire) >= n) return; p = f->owner[field]->internal->thread_ctx; pthread_mutex_lock(&p->progress_mutex); if (f->owner[field]->debug&FF_DEBUG_THREADS) av_log(f->owner[field], AV_LOG_DEBUG, "thread awaiting %d field %d from %p\n", n, field, progress); while (atomic_load_explicit(&progress[field], memory_order_relaxed) < n) pthread_cond_wait(&p->progress_cond, &p->progress_mutex); pthread_mutex_unlock(&p->progress_mutex); }