From acd3b32cc8d1086ae3e67b31a0a265f6ce1c39ff Mon Sep 17 00:00:00 2001 From: gpoirier Date: Thu, 13 Nov 2008 17:18:40 +0000 Subject: document x264's option subq=0, plus a bit of factoring and added details git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27906 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'DOCS/man/en/mplayer.1') diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index f49a46a3f2..33c6e0e844 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -10050,34 +10050,38 @@ exhaustive search (very slow, and no better than umh) radius of exhaustive or multi-hexagon motion search (default: 16) . .TP -.B subq=<1\-9> +.B subq=<0\-9> Adjust subpel refinement quality. This parameter controls quality versus speed tradeoffs involved in the motion estimation decision process. subq=5 can compress up to 10% better than subq=1. .PD 0 .RSs -.IPs 1 +.IPs 0 Runs fullpixel precision motion estimation on all candidate macroblock types. -Then selects the best type. -Then refines the motion of that type to fast quarterpixel precision (fastest). +Then selects the best type with SAD metric (faster than subq=1, not recommended +unless you're looking for ultra-fast encoding). +.IPs 1 +Does as 0, then refines the motion of that type to fast quarterpixel precision +(fast). .IPs 2 Runs halfpixel precision motion estimation on all candidate macroblock types. -Then selects the best type. +Then selects the best type with SATD metric. Then refines the motion of that type to fast quarterpixel precision. .IPs 3 As 2, but uses a slower quarterpixel refinement. .IPs 4 Runs fast quarterpixel precision motion estimation on all candidate macroblock types. -Then selects the best type. +Then selects the best type with SATD metric. Then finishes the quarterpixel refinement for that type. .IPs 5 Runs best quality quarterpixel precision motion estimation on all candidate macroblock types, before selecting the best type. -Also refines the two motion vectors used in bidirectional macroblocks, -rather than reusing vectors from the forward and backward searches. +Also refines the two motion vectors used in bidirectional macroblocks with +SATD metric, rather than reusing vectors from the forward and backward +searches. .IPs 6 Enables rate-distortion optimization of macroblock types in I- and P-frames (default). -- cgit v1.2.3