RepoMirrors/mpv
1
0
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2024-12-18 21:06:00 +00:00
Code Issues Releases Wiki Activity

document x264's option subq=0, plus a bit of factoring and added details

Browse Source 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@27906 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2008-11-13 17:18:40 +00:00
parent 5dbcc861f5
commit acd3b32cc8
1 changed files with 12 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
DOCS/man/en/mplayer.1
View File

@ -10050,34 +10050,38 @@ exhaustive search (very slow, and no better than umh)
radius of exhaustive or multi-hexagon motion search (default: 16) radius of exhaustive or multi-hexagon motion search (default: 16)
. .
.TP .TP
.B subq=<1\-9> .B subq=<0\-9>
Adjust subpel refinement quality. Adjust subpel refinement quality.
This parameter controls quality versus speed tradeoffs involved in the motion This parameter controls quality versus speed tradeoffs involved in the motion
estimation decision process. estimation decision process.
subq=5 can compress up to 10% better than subq=1. subq=5 can compress up to 10% better than subq=1.
.PD 0 .PD 0
.RSs .RSs
.IPs 1 .IPs 0
Runs fullpixel precision motion estimation on all candidate Runs fullpixel precision motion estimation on all candidate
macroblock types. macroblock types.
Then selects the best type. Then selects the best type with SAD metric (faster than subq=1, not recommended
Then refines the motion of that type to fast quarterpixel precision (fastest). 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 .IPs 2
Runs halfpixel precision motion estimation on all candidate macroblock types. 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. Then refines the motion of that type to fast quarterpixel precision.
.IPs 3 .IPs 3
As 2, but uses a slower quarterpixel refinement. As 2, but uses a slower quarterpixel refinement.
.IPs 4 .IPs 4
Runs fast quarterpixel precision motion estimation on all candidate Runs fast quarterpixel precision motion estimation on all candidate
macroblock types. macroblock types.
Then selects the best type. Then selects the best type with SATD metric.
Then finishes the quarterpixel refinement for that type. Then finishes the quarterpixel refinement for that type.
.IPs 5 .IPs 5
Runs best quality quarterpixel precision motion estimation on all Runs best quality quarterpixel precision motion estimation on all
candidate macroblock types, before selecting the best type. candidate macroblock types, before selecting the best type.
Also refines the two motion vectors used in bidirectional macroblocks, Also refines the two motion vectors used in bidirectional macroblocks with
rather than reusing vectors from the forward and backward searches. SATD metric, rather than reusing vectors from the forward and backward
searches.
.IPs 6 .IPs 6
Enables rate-distortion optimization of macroblock types in Enables rate-distortion optimization of macroblock types in
I- and P-frames (default). I- and P-frames (default).