True if the link is closed.
If set, all attempts of start_frame, filter_frame or request_frame
will fail with AVERROR_EOF, and if necessary the reference will be
destroyed.
If request_frame returns AVERROR_EOF, this flag is set on the
corresponding link.
It can be set also be set by either the source or the destination
filter.
True if the link is closed. If set, all attempts of start_frame, filter_frame or request_frame will fail with AVERROR_EOF, and if necessary the reference will be destroyed. If request_frame returns AVERROR_EOF, this flag is set on the corresponding link. It can be set also be set by either the source or the destination filter.