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author | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-09-24 23:14:01 +0000 |
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committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2010-09-24 23:14:01 +0000 |
commit | 2bc05d35470d5a18f9c6d2d10be9c1c8ddc2f634 (patch) | |
tree | c861f42870be72be249487c5b9f5b6e65bc9f143 /doc/filters.texi | |
parent | d66a546f77391cbac6e0453f4d76791ed94a61a2 (diff) | |
download | ffmpeg-2bc05d35470d5a18f9c6d2d10be9c1c8ddc2f634.tar.gz |
Change the syntax of the crop filter from x:y:w:h to w:h:x:y.
Slightly more intuitive and required by a pending changes for making
the filter parametric.
Originally committed as revision 25184 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'doc/filters.texi')
-rw-r--r-- | doc/filters.texi | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 2309c56ac6..f934082d9a 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -26,27 +26,27 @@ Below is a description of the currently available video filters. @section crop -Crop the input video to @var{x}:@var{y}:@var{width}:@var{height}. +Crop the input video to @var{width}:@var{height}:@var{x}:@var{y}. @example -./ffmpeg -i in.avi -vf "crop=0:0:0:240" out.avi +./ffmpeg -i in.avi -vf "crop=0:240:0:0" out.avi @end example -@var{x} and @var{y} specify the position of the top-left corner of the -output (non-cropped) area. - -The default value of @var{x} and @var{y} is 0. - The @var{width} and @var{height} parameters specify the width and height of the output (non-cropped) area. A value of 0 is interpreted as the maximum possible size contained in the area delimited by the top-left corner at position x:y. +@var{x} and @var{y} specify the position of the top-left corner of the +output (non-cropped) area. + +The default value of @var{x} and @var{y} is 0. + For example the parameters: @example -"crop=100:100:0:0" +"crop=0:0:100:100" @end example will delimit the rectangle with the top-left corner placed at position |