mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-24 16:22:37 +00:00
Consistently prefer @var{VAR} over ``VAR'' for indicating filter
parameters. Originally committed as revision 22958 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
6204402409
commit
931b832add
@ -110,18 +110,18 @@ Below is a description of the currently available video filters.
|
||||
|
||||
@section crop
|
||||
|
||||
Crop the input video to x:y:width:height.
|
||||
Crop the input video to @var{x}:@var{y}:@var{width}:@var{height}.
|
||||
|
||||
@example
|
||||
./ffmpeg -i in.avi -vfilters "crop=0:0:0:240" out.avi
|
||||
@end example
|
||||
|
||||
``x'' and ``y'' specify the position of the top-left corner of the
|
||||
@var{x} and @var{y} specify the position of the top-left corner of the
|
||||
output (non-cropped) area.
|
||||
|
||||
The default value of ``x'' and ``y'' is 0.
|
||||
The default value of @var{x} and @var{y} is 0.
|
||||
|
||||
The ``width'' and ``height'' parameters specify the width and height
|
||||
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
|
||||
@ -137,7 +137,7 @@ will delimit the rectangle with the top-left corner placed at position
|
||||
100:100 and the right-bottom corner corresponding to the right-bottom
|
||||
corner of the input image.
|
||||
|
||||
The default value of ``width'' and ``height'' is 0.
|
||||
The default value of @var{width} and @var{height} is 0.
|
||||
|
||||
@section format
|
||||
|
||||
@ -179,7 +179,7 @@ Pass the source unchanged to the output.
|
||||
|
||||
@section scale
|
||||
|
||||
Scale the input video to width:height and/or convert the image format.
|
||||
Scale the input video to @var{width}:@var{height} and/or convert the image format.
|
||||
|
||||
For example the command:
|
||||
|
||||
@ -193,14 +193,14 @@ If the input image format is different from the format requested by
|
||||
the next filter, the scale filter will convert the input to the
|
||||
requested format.
|
||||
|
||||
If the value for ``width'' or ``height'' is 0, the respective input
|
||||
If the value for @var{width} or @var{height} is 0, the respective input
|
||||
size is used for the output.
|
||||
|
||||
If the value for ``width'' or ``height'' is -1, the scale filter will
|
||||
If the value for @var{width} or @var{height} is -1, the scale filter will
|
||||
use, for the respective output size, a value that maintains the aspect
|
||||
ratio of the input image.
|
||||
|
||||
The default value of ``width'' and ``height'' is 0.
|
||||
The default value of @var{width} and @var{height} is 0.
|
||||
|
||||
@section slicify
|
||||
|
||||
@ -288,10 +288,10 @@ Null video source, never return images. It is mainly useful as a
|
||||
template and to be employed in analysis / debugging tools.
|
||||
|
||||
It accepts as optional parameter a string of the form
|
||||
``width:height'', where ``width'' and ``height'' specify the size of
|
||||
@var{width}:@var{height}, where @var{width} and @var{height} specify the size of
|
||||
the configured source.
|
||||
|
||||
The default values of ``width'' and ``height'' are respectively 352
|
||||
The default values of @var{width} and @var{height} are respectively 352
|
||||
and 288 (corresponding to the CIF size format).
|
||||
|
||||
@chapter Available video sinks
|
||||
|
Loading…
Reference in New Issue
Block a user