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supported both as input and as output, as the conversion performed is:
yuva420p -> src -> dst -> yuva420p.


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are supported, avoid pointless loops.


git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30377 b3059339-0415-0410-9bf9-f77b7e298cf2

Patch by Alexis Ballier gmailify($firstname, $familyname)


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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30371 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30370 b3059339-0415-0410-9bf9-f77b7e298cf2

Image buffers require 16-byte alignment, so av_malloc() should be used.
Fixes crash on PPC.

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30369 b3059339-0415-0410-9bf9-f77b7e298cf2

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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30367 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30365 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30362 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30361 b3059339-0415-0410-9bf9-f77b7e298cf2

set.


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only if the input format is paletted.

Fix potential crashes/weirdness if the input format is non-paletted.


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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30356 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30350 b3059339-0415-0410-9bf9-f77b7e298cf2

It makes no sense having that function inlined.

git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30349 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale.c: In function ‘sws_scale’:
swscale.c:2968: warning: cast discards qualifiers from pointer target type


git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30341 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale.c: In function ‘planarCopy’:
swscale.c:2256: warning: cast discards qualifiers from pointer target type


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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30338 b3059339-0415-0410-9bf9-f77b7e298cf2

swScale_C is not templated if any optimization is to be used and
!runtime_cpudetect.


git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30334 b3059339-0415-0410-9bf9-f77b7e298cf2

fmt_depth(fmt).


git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30333 b3059339-0415-0410-9bf9-f77b7e298cf2

swscale_template.c: In function ‘swScale_C’:
swscale_template.c:2580: warning: unused variable ‘alpMmxFilter’
swscale_template.c: In function ‘sws_init_swScale_C’:


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getSwsFunc().


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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30330 b3059339-0415-0410-9bf9-f77b7e298cf2

support dithering, remove the const char *dither variable and use a
literal string instead.


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sws_getContext().


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all the paletted formats.


git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30317 b3059339-0415-0410-9bf9-f77b7e298cf2

Based on patch by Reinhard Tartler <siretart tauware de>

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libswscale.


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git-svn-id: file:///var/local/repositories/mplayer/trunk/libswscale@30304 b3059339-0415-0410-9bf9-f77b7e298cf2