Function av_buffer_pool_get

libavutil/buffer.c:390–415

}

AVBufferRef *av_buffer_pool_get(AVBufferPool *pool)
{
    AVBufferRef *ret;
    BufferPoolEntry *buf;

    ff_mutex_lock(&pool->mutex);
    buf = pool->pool;
    if (buf) {
        memset(&buf->buffer, 0, sizeof(buf->buffer));
        ret = buffer_create(&buf->buffer, buf->data, pool->size,
                            pool_release_buffer, buf, 0);
        if (ret) {
            pool->pool = buf->next;
            buf->next = NULL;
            buf->buffer.flags_internal |= BUFFER_FLAG_NO_FREE;
        }
    } else {
        ret = pool_alloc_buffer(pool);
    }
    ff_mutex_unlock(&pool->mutex);

    if (ret)
        atomic_fetch_add_explicit(&pool->refcount, 1, memory_order_relaxed);

    return ret;
}

void *av_buffer_pool_buffer_get_opaque(const AVBufferRef *ref)
{