[MPlayer-dev-eng] [PATCH] bugfix for black bar besides gaussed vobsubs

Csillag Kristof fenwick at freemail.hu
Sat Jan 8 23:17:15 CET 2005

2005-01-08, szo keltezéssel 22.06-kor Reimar Döffinger ezt írta:
> Hi,
> On Sat, Jan 08, 2005 at 09:49:44PM +0100, Reimar Döffinger wrote:
> > On Sat, Jan 08, 2005 at 06:26:27AM +0100, Csillag Kristof wrote:
> [...]
> > I think the attached patch makes much more sense - it shifts setting the
> > border alpha values of the scaled image to after scaling (instead of
> > before)...
> The old version seems obviously wrong, so I just applied...
The old version is wrong, because in sws_spu_image the conversion of
alpha values destroys the zeros.
(Also, setting color makes no sense when alpha=0).

My solution (in *-bugfix-4.patch) was to use a different (and also more
efficient) conversion that doesn't destroy the zeros.

Your solution (in spuaa4.diff), to set the border after the scaling,
and not before, is also correct.

However you can still apply my patch, on top of yours, to use the faster
conversion routine.

Csillag Kristof <fenwick at freemail.hu>

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