From fc13c3ef4fb43a86b6581c9f408f1d707843c664 Mon Sep 17 00:00:00 2001 From: reimar Date: Wed, 20 Jul 2005 15:09:09 +0000 Subject: [PATCH] Document the skip* lavd options. Thanks to Guillaume for helping me out with the formatting :-). git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@16030 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index f1cbedab34..e7bc1e154b 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -3325,6 +3325,38 @@ video is major than or equal to . Skip the given number of macroblock rows at the bottom. .IPs "st= (MPEG-2 only)" Skip the given number of macroblock rows at the top. +.IPs skiploopfilter= (H.264 only) +Skips the loop filter (aka deblocking) during H.264 decoding. +Since the filtered frame is supposed to be used as reference +for decoding dependant frames this has a worse effect on quality +than not doing deblocking on e.g. MPEG2 video. +But at least for high bitrate HDTV this provides a big speedup with +no visible quality loss. +.sp 1 + can be either one of the following: +.RSss +.br +none: never skip +.br +default: skip when the processing step is useless (e.g. 0 size packets in AVI) +.br +nonref: skip for frames that are not referenced (i.e. not used for +decoding other frames, the error can not "build up") +.br +bidir: skip for B-Frames +.br +nonkey: skip for all frames except keyframes +.br +all: skip for all frames +.REss +.IPs skipidct= (MPEG1/2 only) +Skips the IDCT step. +This looses a lot of quality in almost all cases +(see skiploopfilter for available skip values). +.IPs skipframe= +Skips decoding of frames completely. +Big speedup, but jerky motion and sometimes bad artefacts +(see skiploopfilter for available skip values). .IPs vismv= Visualize motion vectors. .RSss