On date Sunday 2016-01-17 20:15:45 +0100, Paul B Mahol encoded:
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> doc/filters.texi | 6 ++++++
> libavfilter/vf_crop.c | 54
> +++++++++++++++++++++++++++++++++++++++------------
> 2 files changed, 48 insertions(+), 12 deletions(-)
>
> diff --git a/doc/filters.texi b/doc/filters.texi
> index f4bda6a..aee4e66 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -4621,6 +4621,11 @@ This expression is evaluated per-frame.
> If set to 1 will force the output display aspect ratio
> to be the same of the input, by changing the output sample aspect
> ratio. It defaults to 0.
> +
> +@item metadata
> +If set to 1 it will use frame metadata instead to obtain all parameters.
> +To make use of this feature you need to start @ref{cropdetect} filter before
> +this filter.
Suggestion: to make this more extensible, allow to set the metadata
fields to read, for example so that you can have something like:
metadata=facedetect or metadata=cropdetect.
[...]
--
FFmpeg = Frenzy and Freak Most Proud Enlightening Guru
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