[MPlayer-users] libass is buggy and could use some new tags.

[Eric Appleman]

Let's face it, libass is starting to show its age and isn't as fresh as 
vsfilter anymore.

I propose that we use vsfilter 2.39c as model to bring libass up to date.

By doing this, we can eliminate a ton of nagging issues that are holding 
fansubbers and other ASS scripters back in terms of multiplatform 
support for tags.

A small sampling of examples where libass is falling short:

    * Transparency breaks if you use shadows
    * Anti-aliasing breaks if you use transparency
    * If you use decimal points on some tag it practically ignores the tag
    * No \be (blur edges) strength
    * No @font support
    * No implementation for any of the tags in vsfilter 2.39c



Consult this bug for progress: 
http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1394


- Eric