Function av_executor_alloc

libavutil/executor.c:142–182

}

AVExecutor* av_executor_alloc(const AVTaskCallbacks *cb, int thread_count)
{
    AVExecutor *e;
    int has_lock = 0, has_cond = 0;
    if (!cb || !cb->user_data || !cb->ready || !cb->run || !cb->priority_higher)
        return NULL;

    e = av_mallocz(sizeof(*e));
    if (!e)
        return NULL;
    e->cb = *cb;

    e->local_contexts = av_calloc(FFMAX(thread_count, 1), e->cb.local_context_size);
    if (!e->local_contexts)
        goto free_executor;

    e->threads = av_calloc(FFMAX(thread_count, 1), sizeof(*e->threads));
    if (!e->threads)
        goto free_executor;

    if (!thread_count)
        return e;

    has_lock = !ff_mutex_init(&e->lock, NULL);
    has_cond = !ff_cond_init(&e->cond, NULL);

    if (!has_lock || !has_cond)
        goto free_executor;

    for (/* nothing */; e->thread_count < thread_count; e->thread_count++) {
        ThreadInfo *ti = e->threads + e->thread_count;
        ti->e = e;
        if (executor_thread_create(&ti->thread, NULL, executor_worker_task, ti))
            goto free_executor;
    }
    return e;

free_executor:
    executor_free(e, has_lock, has_cond);
    return NULL;
}

void av_executor_free(AVExecutor **executor)
{