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doc/filters.texi: fix several typos in the vidstab* sections 

Also create an anchor for the unsharp filter, and references to
it in its mentions.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Moritz Barsnick 2014-10-15 15:44:33 +02:00 committed by Michael Niedermayer
parent 864f9326fb
commit bbd8c85263
1 changed files with 8 additions and 7 deletions
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doc/filters.texi
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@ -8651,6 +8651,7 @@ ffmpeg -i INPUT -vf trim=duration=1
@end itemize @end itemize
@anchor{unsharp}
@section unsharp @section unsharp
Sharpen or blur the input video. Sharpen or blur the input video.
@ -8812,7 +8813,7 @@ Read a file with transform information for each frame and
apply/compensate them. Together with the @ref{vidstabdetect} apply/compensate them. Together with the @ref{vidstabdetect}
filter this can be used to deshake videos. See also filter this can be used to deshake videos. See also
@url{http://public.hronopik.de/vid.stab}. It is important to also use @url{http://public.hronopik.de/vid.stab}. It is important to also use
the unsharp filter, see below. the @ref{unsharp} filter, see below.
To enable compilation of this filter you need to configure FFmpeg with To enable compilation of this filter you need to configure FFmpeg with
@code{--enable-libvidstab}. @code{--enable-libvidstab}.
@ -8822,7 +8823,7 @@ To enable compilation of this filter you need to configure FFmpeg with
@table @option @table @option
@item input @item input
Set path to the file used to read the transforms. Default value is Set path to the file used to read the transforms. Default value is
@file{transforms.trf}). @file{transforms.trf}.
@item smoothing @item smoothing
Set the number of frames (value*2 + 1) used for lowpass filtering the Set the number of frames (value*2 + 1) used for lowpass filtering the
@ -8830,9 +8831,9 @@ camera movements. Default value is 10.
For example a number of 10 means that 21 frames are used (10 in the For example a number of 10 means that 21 frames are used (10 in the
past and 10 in the future) to smoothen the motion in the video. A past and 10 in the future) to smoothen the motion in the video. A
larger values leads to a smoother video, but limits the acceleration larger value leads to a smoother video, but limits the acceleration of
of the camera (pan/tilt movements). 0 is a special case where a the camera (pan/tilt movements). 0 is a special case where a static
static camera is simulated. camera is simulated.
@item optalgo @item optalgo
Set the camera path optimization algorithm. Set the camera path optimization algorithm.
@ -8869,7 +8870,7 @@ fill the border black
Invert transforms if set to 1. Default value is 0. Invert transforms if set to 1. Default value is 0.
@item relative @item relative
Consider transforms as relative to previsou frame if set to 1, Consider transforms as relative to previous frame if set to 1,
absolute if set to 0. Default value is 0. absolute if set to 0. Default value is 0.
@item zoom @item zoom
@ -8935,7 +8936,7 @@ Use @command{ffmpeg} for a typical stabilization with default values:
ffmpeg -i inp.mpeg -vf vidstabtransform,unsharp=5:5:0.8:3:3:0.4 inp_stabilized.mpeg ffmpeg -i inp.mpeg -vf vidstabtransform,unsharp=5:5:0.8:3:3:0.4 inp_stabilized.mpeg
@end example @end example
Note the use of the unsharp filter which is always recommended. Note the use of the @ref{unsharp} filter which is always recommended.
@item @item
Zoom in a bit more and load transform data from a given file: Zoom in a bit more and load transform data from a given file: