[FFmpeg-devel] [PATCH] avfilter/vf_crop: make it possible to use frame metadata when cropping

Moritz Barsnick barsnick at gmx.net
Sun Jan 17 21:54:50 CET 2016

On Sun, Jan 17, 2016 at 20:15:45 +0100, Paul B Mahol wrote:

Nice feature.

> + at 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.

I would probably put it in other words. (Missing the reference to
cropdetect in the intro, and don't consider "start" the correct term.)

  If set to 1, the frame metadata as inserted by the cropdetect filter
  will be used to determine all parameters. This requires that the
  @ref{cropdetect} filter is inserted before this filter in the chain.


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