assrender v0.37.0
update libass ( to 0.16.0 ), and its dependencies.
change some behavior about frame size because of this libass/libass#591
so we will also provide a release of the old behavior util libass/libass#597 settled.
add frame_width
, frame_height
to set the actual displayed size for replacing dar
, sar
, they provide more information and reduce manual calculation.