[−][src]Function stainless_ffmpeg_sys::av_thread_message_queue_nb_elems
pub unsafe extern "C" fn av_thread_message_queue_nb_elems(
mq: *mut AVThreadMessageQueue
) -> c_int
Return the current number of messages in the queue.
@return the current number of messages or AVERROR(ENOSYS) if lavu was built without thread support