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doc/indevs: rework options description in the x11 grab section

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Create a dedicated options subchapter, rather than a subchapter for each
option.

This is more consistent with the rest of the docs. Also apply misc minor
fixes for improving rendering.
This commit is contained in:
Stefano Sabatini 2012-08-08 10:16:26 +02:00
parent 7794ddeae3
commit 083754f2be
1 changed files with 19 additions and 18 deletions
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37
doc/indevs.texi
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@ -635,12 +635,12 @@ ffmpeg -f x11grab -r 25 -s cif -i :0.0 out.mpg
ffmpeg -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg ffmpeg -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg
@end example @end example
@subsection @var{follow_mouse} AVOption @subsection Options
The syntax is: @table @option
@example @item follow_mouse
-follow_mouse centered|@var{PIXELS} Make the grabbed area follow the mouse. The argument can be
@end example @code{centered} or a number of pixels @var{PIXELS}.
When it is specified with "centered", the grabbing region follows the mouse When it is specified with "centered", the grabbing region follows the mouse
pointer and keeps the pointer at the center of region; otherwise, the region pointer and keeps the pointer at the center of region; otherwise, the region
@ -650,28 +650,29 @@ zero) to the edge of region.
For example: For example:
@example @example
ffmpeg -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg ffmpeg -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg
@end example
# Follows only when the mouse pointer reaches within 100 pixels to edge To follow only when the mouse pointer reaches within 100 pixels to edge:
@example
ffmpeg -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg ffmpeg -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg
@end example @end example
@subsection @var{show_region} AVOption @item show_region
Show grabbed region on screen.
The syntax is: If @var{show_region} is specified with @code{1}, then the grabbing
@example region will be indicated on screen. With this option, it is easy to
-show_region 1 know what is being grabbed if only a portion of the screen is grabbed.
@end example
If @var{show_region} AVOption is specified with @var{1}, then the grabbing
region will be indicated on screen. With this option, it's easy to know what is
being grabbed if only a portion of the screen is grabbed.
For example: For example:
@example @example
ffmpeg -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg ffmpeg -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg
# With follow_mouse
ffmpeg -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
@end example @end example
With @var{follow_mouse}:
@example
ffmpeg -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
@end example
@end table
@c man end INPUT DEVICES @c man end INPUT DEVICES