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vf_scale update 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6639 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2002-07-04 13:30:55 +00:00
parent de90a774d9
commit d4cd31ca9e
1 changed files with 10 additions and 1 deletions
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11
DOCS/tech/vop.txt
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@ -56,7 +56,7 @@ Current plugins:
Optional 'x' parameter (0..3) controls horizontal and vertical mirroring
MPI: TEMP
-vop scale[=w:h]
-vop scale[=w:h[:c[:p]]]
Software scaling (zoom) _and_ yuv<->rgb colorspace conversion
w,h (new width/height after scaling) defaults to original width,height
note: if -zoom is used, and underlaying filters (including libvo)
@ -64,6 +64,15 @@ Current plugins:
note 2: w/h values -1 means original width/height, 0 means scaled
d_width/d_height. -2/-3 means calculating w or h using the other
dimension and the original (-3) or prescaled (-2) aspect ratio.
c chroma skipping
0 -> use all available input lines for chroma
1 -> use only every 2. input line for chroma
2 -> use only every 4. input line for chroma
3 -> use only every 8. input line for chroma
p scaling parameter (depends upon the used scaling method)
for -sws 2 (bicubic) its sharpness (0 (soft) - 100 (sharp))
for -sws 7 (gaussian) its sharpness (0 (soft) - 100 (sharp))
for -sws 9 (lanczos) its filter length (1 - 10)
MPI: TEMP, accepts stride
Special: dec_video and mpcodecs core autoloads it for colorspace conv.