[FFmpeg-devel] [PATCH] mp: add filter description to filters.texi

[Víctor Paesa]

Hi,

On Mon, Mar 28, 2011 at 00:15, Stefano Sabatini wrote:
> ---
>  doc/filters.texi |   98 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 98 insertions(+), 0 deletions(-)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 5681de4..6e38e4e 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -644,6 +644,104 @@ a float number which specifies chroma temporal strength, defaults to
>  @var{luma_tmp}*@var{chroma_spatial}/@var{luma_spatial}
>  @end table
>
> + at section mp
> +
> +Apply an MPlayer filter to the input video.
> +
> +This filter provides a wrapper around most of the filters of
> +MPlayer/MEncoder.
> +
> +This wrapper is considered experimental, some of the wrapped filters

It should be a period, instead of a comma.
(see my first encounter with comma splices here :-)
http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2006-July/013106.html)

> +may not work properly and we may drop support for them, as they will
> +be implemented natively into FFmpeg. Thus you should avoid to depend

"Thus you should avoid depending"

> +on them when writing portable scripts.
> +
> +The filters accepts the parameters:
> + at var{filter_name}[:=]@var{filter_params}
> +
> + at var{filter_name} is the name of a supported MPlayer filter,
> + at var{filter_params} is a string containing the parameters accepted by
> +the named filter.
> +
> +Follow the list of the currently supported filters:

Probably "The list of the currently supported filters follows:"

> + at table @var
> + at item 2xsai
> + at item blackframe
> + at item boxblur
> + at item cropdetect
> + at item decimate
> + at item delogo
> + at item denoise3d
> + at item detc
> + at item dint
> + at item divtc
> + at item down3dright
> + at item dsize
> + at item eq2
> + at item eq
> + at item field
> + at item fil
> + at item fixpts
> + at item framestep
> + at item fspp
> + at item geq
> + at item gradfun
> + at item harddup
> + at item hqdn3d
> + at item hue
> + at item il
> + at item ilpack
> + at item ivtc
> + at item kerndeint
> + at item mcdeint
> + at item mirror
> + at item noise
> + at item ow
> + at item palette
> + at item perspective
> + at item phase
> + at item pp7
> + at item pullup
> + at item qp
> + at item rectangle
> + at item remove_logo
> + at item rgbtest
> + at item rotate
> + at item sab
> + at item screenshot
> + at item smartblur
> + at item softpulldown
> + at item softskip
> + at item spp
> + at item swapuv
> + at item telecine
> + at item test
> + at item tile
> + at item tinterlace
> + at item unsharp
> + at item uspp
> + at item yuvcsp
> + at item yvu9
> + at end table
> +
> +The parameter syntax and semantics for the listed filters is the same
> +of the corresponding MPlayer filters. For detailed instructions check
> +the "VIDEO FILTERS" section in the MPlayer manual.
> +
> +Some examples follow:
> + at example
> +# remove a logo by interpolating the surrounding pixels
> +mp=delogo=200:200:80:20:1
> +
> +# adjust gamma, brightness, contrast
> +mp=eq2=1.0:2:0.5
> +
> +# tweak hue and saturation
> +mp=hue=100:-10
> + at end example
> +
> +See also mplayer(1), @url{http://www.mplayerhq.hu/}
> +
>  @section noformat
>
>  Force libavfilter not to use any of the specified pixel formats for the
> --
> 1.7.2.3

Regards,
Víctor