Fonts embedded within an MKV do not load.

The matroska demuxer will not load fonts if they are embedded within an MKV file as attachments.

Default font will be used instead.

This can be reproduced with libasa enabled.

Added attachment:

• vlctest.txt

changed the description

added Component::Visualization label

assigned to @funman

added Component::Demuxers label and removed Component::Visualization label

Mail from bitmap:

We got this working quite some time ago for the other formats (sorry,
but I really haven't kept up with the current HEAD of vlc for a while
now) so my guess is that it's something SSA/ASS specific, unless the
original code has been broken.
quartztext.c and freetype.c both had code for loading the fonts from
attachments within the mkv file, but had to use different mechanisms to
do it, because of the different underlying font engines.

Bitmap

added Type::feature label

changed milestone to %Features paradize

The asa library does not seems to allow using external fonts that are not installed. Someone that understands how it works (asa) should have a look at it.

It might be worth noting that Aegisub's implementation of libasa seems to mirror that behavior. However, it might be a limitation of the program's demuxer rather than the fault of libasa.

Samples: http://people.videolan.org/~jb/MKV/

Added attachment:

• libass-1.patch

I have attached a patch to add support for libass that does work better than asa. I would like status report with this patch.

assigned to @fenrir and unassigned @funman

added Component::Decoders label and removed Component::Demuxers label

i'll test it for mac tomorrow.

I have a patch to include it in the contribs.

I got issue in linking it on windows, but the code compiles.

Does this require the csri flag?

compiles and works on OS X. Needs some extra safety checks, disabling of debug code, support for seeking backwards and needs to know OSX font dirs.

{{ /System/Library/Fonts /Library/Fonts ~/Library/Fonts }} are the OSX fontdirs.