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author | diego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-12-07 14:09:46 +0000 |
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committer | diego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-12-07 14:09:46 +0000 |
commit | 3a7a8a2bf42aeae632a58d6f78c2aaa57dda90e0 (patch) | |
tree | 0d21781140d9ca4a04a9867c4dbe5a875b15ef47 /DOCS | |
parent | 58fd527f98d24234ccec305c2f74158a43750c16 (diff) | |
download | mpv-3a7a8a2bf42aeae632a58d6f78c2aaa57dda90e0.tar.bz2 mpv-3a7a8a2bf42aeae632a58d6f78c2aaa57dda90e0.tar.xz |
Document geq filter.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21531 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS')
-rw-r--r-- | DOCS/man/en/mplayer.1 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1 index f69f91aab1..7373a88bf4 100644 --- a/DOCS/man/en/mplayer.1 +++ b/DOCS/man/en/mplayer.1 @@ -5489,6 +5489,30 @@ some equation like "2+2*sin(PI*qp)" .RE . .TP +.B geq=equation +generic equation change filter +.RSs +.IPs <equation> +Some equation, e.g.\& 'p(W-X\,Y)' to flip the image horizontally. +You can use whitespace to make the equation more readable. +There are a couple of constants that can be used in the equation: +.RSss +PI: the number pi +.br +E: the number e +.br +X / Y: the coordinates of the current sample +.br +W / H: width and height of the image +.br +SW / SH: width/height scale depending on the currently filtered plane, e.g.\& +1,1 and 0.5,0.5 for YUV 4:2:0. +.br +p(x,y): returns the value of the pixel at location x/y of the current plane. +.REss +.RE +. +.TP .B "test\ \ \ " Generate various test patterns. . @@ -10229,6 +10253,13 @@ mplayer \-rawaudio format=0xff \-demuxer rawaudio \-af pan=2:.32:.32:.39:.06:.06 You might want to play a bit with the pan values (e.g multiply with a value) to increase volume or avoid clipping. . +.PP +.B checkerboard invert with geq filter: +.nf +mplayer \-vf geq='128+(p(X\,Y)-128)*(0.5-gt(mod(X/SW\,128)\,64))*(0.5-gt(mod(Y/SH\,128)\,64))*4' +.fi +. +. .SH EXAMPLES OF MENCODER USAGE . .PP |