[MPlayer-dev-eng] Fix display of ASS subtitles

[Reimar Döffinger]

> On 27 Feb 2022, at 02:38, Oneric <oneric at oneric.de> wrote:
> 
> Some parts of ASS depend on the video’s storage size,
> so libass needs to be told about this via ass_set_storage_size
> (which is already available in the vendored version in mplayer).
> Can be tested on e.g. the files found here:
> https://code.videolan.org/videolan/vlc/uploads/b54e0761d0d3f4f79b2947ffb83a3b59/vlc-issue_libass-storage-size.tar.xz

Thanks, applied.
I did not test it beyond compilation, the patch seems logical enough.