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software scaler filter docs

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software scaler filter docs
-ssf cgb=<float> chrominance gaussian blur
usefull for videos with some chroma (color) noise (TV captures, VHS, ...)
-ssf lgb=<float> -> luminance gaussian blur
hmm, mostly special effect, could be used as lame noise reducer though
-ssf chs=<int> -> shift chrominance horizontally
-ssf cvs=<int> -> shift chrominance vertically
usefull if the luma & chroma are not aligned exactly
-ssf cs=<float> -> chrominance sharpen
-ssf ls=<float> -> luminance sharpen
simple sharpening filter
note: these will only work if the swscaler is used at all (use -vop scale)
example: mplayer foobar.avi -vop scale -ssf lgb=3.0