[FFmpeg-devel] [PATCH] doc/filters: Add some random examples for fftfilt

[Timothy Gu]

On Sat, Mar 7, 2015 at 2:29 PM Michael Niedermayer <michaelni at gmx.at> wrote:

> Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> ---
>  doc/filters.texi |   23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index b15087c..9149ae5 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -4629,6 +4629,29 @@ The coordinates of the current sample.
>  The width and height of the image.
>  @end table
>
> + at subsection Examples
> +
> + at itemize
> + at item
>


> +Highpass:
>

High-pass:


> + at example
> +fftfilt=dc_Y=128:weight_Y='squish(1-(Y+X)/100)'
> +
> + at end example
> +
>


> +Lowpass
>

add @item and ':'
also Low-pass


> + at example
> +fftfilt=dc_Y=0:weight_Y='squish((Y+X)/100-1)'
> + at end example
> +
> + at item
> +Sharpen:
> + at example
> +fftfilt=dc_Y=0:weight_Y='1+squish(1-(Y+X)/100)'
> + at end example
> +
> + at end itemize
> +
>  @section field
>
>  Extract a single field from an interlaced image using stride
> --
> 1.7.9.5
>
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