diff --git a/DOCS/tech/swscaler_filters.txt b/DOCS/tech/swscaler_filters.txt new file mode 100644 index 0000000000..5b10f97350 --- /dev/null +++ b/DOCS/tech/swscaler_filters.txt @@ -0,0 +1,19 @@ +software scaler filter docs + +-ssf cgb= chrominance gaussian blur + usefull for videos with some chroma (color) noise (TV captures, VHS, ...) + +-ssf lgb= -> luminance gaussian blur + hmm, mostly special effect, could be used as lame noise reducer though + +-ssf chs= -> shift chrominance horizontally +-ssf cvs= -> shift chrominance vertically + usefull if the luma & chroma are not aligned exactly + +-ssf cs= -> chrominance sharpen +-ssf ls= -> 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