mirror of https://github.com/mpv-player/mpv
better description of the chroma_opt XviD option
patch by Guillaume POIRIER <gpoirier@irisa.fr> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13054 b3059339-0415-0410-9bf9-f77b7e298cf2
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@ -5627,6 +5627,13 @@ This setting toggles the use of chroma planes for motion estimation.
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.TP
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.TP
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.B chroma_opt
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.B chroma_opt
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Enable a chroma optimizer prefilter.
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Enable a chroma optimizer prefilter.
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It will do some extra magic on color information to minimize the
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stepped-stairs effect on edges.
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It will improve quality at the cost of encoding speed.
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It reduces PSNR by nature, as the mathematical deviation to the original
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picture will get bigger, but the subjective image quality will raise.
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Since it works with color information, you might want to turn it off when
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encoding in greyscale.
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.TP
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.TP
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.B reduced
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.B reduced
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Enable encoding reduced-resolution frames.
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Enable encoding reduced-resolution frames.
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