From b4fccbe1e46572d54edbff33a371ea638e88ff12 Mon Sep 17 00:00:00 2001 From: michael Date: Sun, 5 Jan 2003 16:06:18 +0000 Subject: qpel & pre ME improvements git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8804 b3059339-0415-0410-9bf9-f77b7e298cf2 --- DOCS/tech/libavc-options.txt | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'DOCS/tech') diff --git a/DOCS/tech/libavc-options.txt b/DOCS/tech/libavc-options.txt index 26b7c002a9..143c225319 100644 --- a/DOCS/tech/libavc-options.txt +++ b/DOCS/tech/libavc-options.txt @@ -276,6 +276,7 @@ pred (for huffyuv) qpel use quarter pel motion compensation Tip: this seems only usefull for high bitrate encodings +precmp comparission function for motion estimation pre pass cmp comparission function for full pel motion estimation subcmp comparission function for sub pel motion estimation 0 SAD (sum of absolute differences) (default) @@ -289,6 +290,7 @@ subcmp comparission function for sub pel motion estimation Tip2: when using SATD for full pel search u should use a larger diamond something like dia=2 or dia=4 +predia (-99 - 6) diamond type & size for motion estimation pre pass dia (-99 - 6) diamond type & size for motion estimation ... -3 shape adaptive diamond with size 3 @@ -318,6 +320,7 @@ trell trellis quantization lambda is a qp dependant constant bits is the amount of bits needed to encode the block error is simple the sum of squared errors of the quantization + Tip: this last_pred (0-99) amount of motion predictors from the previous frame 0 (default) @@ -327,6 +330,10 @@ preme (0-2) Motion estimation pre-pass 0 disabled 1 only after I frames (default) 2 allways + +subq (1-8) subpel refinement quality (for qpel) + 8 (default) + Note: this has a significant effect on the speed lavdopts: (decoder options) --------------------------- -- cgit v1.2.3