mencoder fails to extract a given DVD vobsub

[dcharles]

Hello,

mencoder works properly when no subtitle track is specified. Otherwise it completes but ultimately issues a segfault and the resulting files may or may not be truncated.

This works:

% mencoder -mc 0 -vobsubout /tmp/s -ovc copy -nosound -noautosub -o /dev/null dvd://X

This doesn't:

% mencoder -mc 0 -vobsubout /tmp/s -ovc copy -nosound -noautosub -o /dev/null dvd://X -sid 0
...

Video stream: 4970.892 kbit/s  (621361 B/s)  size: 4471715111 bytes  7196.640 secs  179916 frames                                                               
Segmentation fault

Both the SVN-r38674-snapshot-14.2.0 I build and the git20230717 I get from the Alpine Linux repositories have this issue.