[MPlayer-dev-eng] [PATCH] ASS - detect changes to speed up -vo gl

[Jindrich Makovicka]

Hi,

the attached patch adds a subtitle change detection to libass. It is a
quite brute force approach, but it significantly reduces the cpu load
when using -vo gl, as the texture uploads are costly (at least on
nVidia 6600 + build 9625). With the patch, the textures are uploaded
only when the EOSD actually changes.

Regards,
-- 
Jindrich Makovicka
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