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doc/filters: extend syntax description for transpose, and add examples

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Stefano Sabatini 2012-12-12 12:36:25 +01:00
parent 6722f35dd3
commit a871b5cc98
1 changed files with 17 additions and 1 deletions
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18
doc/filters.texi
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@ -3946,7 +3946,12 @@ Default mode is @code{merge}.
Transpose rows with columns in the input video and optionally flip it. Transpose rows with columns in the input video and optionally flip it.
This filter accepts the following named parameters: The filter accepts parameters as a list of @var{key}=@var{value}
pairs, separated by ":". If the key of the first options is omitted,
the arguments are interpreted according to the following syntax:
@example
transpose=@var{dir}:@var{passthrough}
@end example
@table @option @table @option
@item dir @item dir
@ -4005,6 +4010,17 @@ Preserve landscape geometry (when @var{width} >= @var{height}).
Default value is @code{none}. Default value is @code{none}.
@end table @end table
For example to rotate by 90 degrees clockwise and preserve portrait
layout:
@example
transpose=dir=1:passthrough=portrait
@end example
The command above can also be specified as:
@example
transpose=1:portrait
@end example
@section unsharp @section unsharp
Sharpen or blur the input video. Sharpen or blur the input video.