libass
libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format. It is mostly compatible with VSFilter.
Get it
See GitHub releases for the latest release 0.12.2 (released 2015-05-07). This release contains bugfixes and compatibility fixes. See the changelog for a detailed list of changes.
Source code is available from our GitHub repository.
Contact
Please use the issue tracker to report bugs or feature requests. We have an IRC channel, too. Talk to us on irc.freenode.net/#libass.
Related Links
The following projects/companies use libass:
- MPlayer
- mplayer2
- mpv
- VLC
- GStreamer (assrender plugin)
- Libav
- FFmpeg
- Aegisub
- Kodi (XBMC)
- avidemux
- PunkGraphicsStream (BD subtitle encoder)
- HandBrake
- Crunchyroll
- MX Player
Information about the ASS format:
- ASS specification (incomplete)
- ASS override tags (Aegisub manual)
- VSFilter source code (Guliverkli2)
Other ASS/SSA implementations:
- VSFilter:
- xy-VSFilter/XySubFilter
- VSFilter in MPC-HC
- VSFilterMod (with custom format extensions)
- Threaded VSFilter (defunct)
- VSFilter in Guliverkli2 (defunct, subsumed by all of the above)
- VSFilter in guliverkli (defunct, forked as Guliverkli2)
- ffdshow
- Perian
- asa (defunct)
- libjass
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent