[MPlayer-dev-eng] [PATCH 2/2] av_sub: support multiple rectangles.

Nicolas George nicolas.george at normalesup.org
Mon Apr 23 11:46:12 CEST 2012


Le quintidi 5 floréal, an CCXX, Reimar Döffinger a écrit :
> I slightly disagree. Neither the OpenGL nor libswscale scalers are good
> enough for subtitle scaling.

I trust you for OpenGL. But for libswscale, what problem do you see?

I tried a random vobsub on top of a red background, first using mplayer's
SPU scaler (scale=$size,expand=osd=1) and then using libswscale
(expand=osd=1,scale=$size) to downscale to 320×180.

The result I found is that swscale default scaler (bicubic) looks better
than spuaa 2 (which is, as the doc says, the best looking).

See the attached file: libswscale is on top, mplayer's spuscaler on bottom.

Regards,

-- 
  Nicolas George
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