[FFmpeg-devel] [PATCH] avfilter: add shuffleframes filter

[Clément Bœsch]

On Tue, Oct 20, 2015 at 08:10:55PM +0200, Paul B Mahol wrote:
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  doc/filters.texi               |  20 ++++++
>  libavfilter/Makefile           |   1 +
>  libavfilter/allfilters.c       |   1 +
>  libavfilter/vf_shuffleframes.c | 159 +++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 181 insertions(+)
>  create mode 100644 libavfilter/vf_shuffleframes.c
> 
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 1af0a72..9ff5e24 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -9945,6 +9945,26 @@ Set the size of the box used to represent one palette color entry. Default is
>  @code{30} (for a @code{30x30} pixel box).
>  @end table
>  
> + at section shuffleframes
> +
> +Reorder and/or duplicate video frames.
> +
> +It accepts the following parameters:
> +
> + at table @option
> + at item mapping
> +Set the destination indexes of input frames.
> +This is space or '|' separated list of indexes that maps input frames to output
> +frames. Number of indexes also sets maximal value that each index may have.
> + at end table
> +
> +The first frame has the index 0. The default is to keep the input unchanged.
> +
> +Swap second and third frame of every three frames of the input:
> + at example
> +ffmpeg -i INPUT -vf "shuffleframes=0 2 1" OUTPUT
> + at end example
> +

No random shuffle of batches of frames?

[...]

-- 
Clément B.
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