From aac79523e0946f8478fc23d97167f1fdb718aad8 Mon Sep 17 00:00:00 2001 From: diego Date: Thu, 19 Aug 2004 14:45:07 +0000 Subject: [PATCH] better description of the chroma_opt XviD option patch by Guillaume POIRIER git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13054 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 6785c0660f..a924727011 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -5627,6 +5627,13 @@ This setting toggles the use of chroma planes for motion estimation. .TP .B chroma_opt Enable a chroma optimizer prefilter. +It will do some extra magic on color information to minimize the +stepped-stairs effect on edges. +It will improve quality at the cost of encoding speed. +It reduces PSNR by nature, as the mathematical deviation to the original +picture will get bigger, but the subjective image quality will raise. +Since it works with color information, you might want to turn it off when +encoding in greyscale. .TP .B reduced Enable encoding reduced-resolution frames.