libass (0.11.1)
* Fix distfile generation
* No functional changes
libass (0.11.0)
* Add bitmap run combining/compositing
This changes the text rendering model and increases compatibility with
VSFilter. It may make rendering faster or slower in certain cases.
* Add AVX/SSE2 implementations for \be and compositing
This adds yasm as (optional) build dependency.
* Add ass_library_version() API funcion (GC #113)
* Add 'profile' program for benchmarks
* Improve gaussian blur
* Fix compilation with MSVC 2013
* Speed up HarfBuzz shaper
* Speed up cache
* Notable compatibility bugfixes
* Reset origin on \fay changes (GC #88)
* Tons of parser fixes
* Fix ascender/descender metrics (GH #8)
* Fix \pbo sign and scaling
* Don't reset wrap style on \r (GC #116, GH #45)
* Notable bugfixes:
* Correctly handle @font advance (GC #94)
* Disable ligatures for non-zero \fsp
* Make sure to release vector clip (GH #22)
libass (0.10.2)
* API additions and some ABI changes, bumped SONAME
* Expose header field for VSFilter color mangling (GC #87)
* Add functions for explicit scaling hints (GC #6)
* Add 'type' field to ASS_Image (GC #31)
* Workaround Freetype's font size grid-fitting where appropriate
* Apply blur to both glyph and border when using opaque box
* Parser bugfixes
* Parse angles in style as number
* Fix fallback event formats
* Make closing ')' optional for some tags
* Fix crazy VSFilter behaviour for \move (GC #90)
* Make \r fall back to line style (GC #104)
* Parse style name like VSFilter
* Ignore junk in nested \t tags
* Make \clip tag arguments mandatory
* Properly handle script and language in the HarfBuzz shaper
* Allow ASS_Track and ASS_Renderer to have different ASS_Library
* Fix stroking in some rare cases
* Correctly handle @font advance (GC #94)
* Fix ascent/descent for some fonts (GC #106)
* Fix ass_step_sub to not require sorted events
* Fix blur scaling
* Don't mutate input strings (GC #88)
* Remove/change some error messages
* Fix various small memory leaks
libass (0.10.1)
* Fix letter spacing
* Add \rSTYLENAME syntax support (GC #43)
* Fix border generation and border style reset (GC #56)
* Fix various issues with bug-for-bug compatibility of
transformations (\fax, \fay, etc.) to VSFilter (GC #46, GC #42)
* Fix drawing parsing (GC #47)
* Various fixes to shaper (GC #54, GC #55, GC#59)
* Fix change detection
* Add ass_set_line_position API to set a vertical subtitle offset
* Fix scaling of drawing baseline offset (\pbo) values
* Fix skipping of zero-width characters for FriBiDi shaper
* Use LTR text base direction by default, similar to VSFilter
libass (0.10.0)
* Bidirectional layout and Arabic shaping via FriBidi (GC #13)
* OpenType shaping via HarfBuzz-ng (GC #13)
* Add API for shaper configuration
* Add support for `Language' Script Info property, this can be used for
hinting the text language
* Vertical layout improvements
* Use `vert' and `vkna' OpenType features for vertical glyph variants
* Position rotated glyphs onto baseline
* Parse font encoding property for base text direction hinting
* Refactor cache system
* Use generic outlines in place of FreeType glyphs
* Direct outline bitmap rendering
* Fix whitespace trimming (GC #35)
* Do not render border if there's no shadow or glyph (GC #29)
* Adjust spacing after a italic to non-italic style change (GC #37)
* Fix fade timing
* Fix x positioning with borders (GC #27)
* Build system tweaks
libass is a portable subtitle renderer for the ASS/SSA (Advanced
Substation Alpha/Substation Alpha) subtitle format. It is mostly
compatible with VSFilter.
