From 1b560c96abb6dc171c2ffc12a024a95b6e32f6a5 Mon Sep 17 00:00:00 2001 From: gpoirier Date: Tue, 21 Sep 2004 11:58:42 +0000 Subject: [PATCH] Better description of lavc's dia encoding option, thanks to Loren Merritt explanations git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@13418 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/man/en/mplayer.1 | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index 7f6b622734..7e5739a29a 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -5991,6 +5991,17 @@ Diamond type and size for motion estimation pre pass .TP .B dia=<-99\-6> Diamond type & size for motion estimation. +Motion search is an iterative process. +Using a small diamond does not limit the search to finding only small +motion vectors. +It is just somewhat more likely to stop before finding the very best motion +vector, especially when noise is involved. +Bigger diamonds allow a wider search for the best motion vector, thus are +slower but result in better quality. +.br +Big normal diamonds are better quality than shape-adaptive diamonds. +.br +Shape-adaptive diamonds are a good tradeoff between speed and quality. .br .I NOTE: The sizes of the normal diamonds and shape adaptive ones don't have @@ -6001,7 +6012,7 @@ shape adaptive (fast) diamond with size 3 .IPs -2 shape adaptive (fast) diamond with size 2 .IPs -1 -experimental +slightly special: Can be slower and/or better than dia=-2. .IPs 1 normal size=1 diamond (default) =EPZS type diamond .nf