[FFmpeg-devel] doc/filters : add metadata info for blackframe filter

Moritz Barsnick barsnick at gmx.net
Sun Oct 23 16:41:17 EEST 2016

On Sat, Oct 22, 2016 at 22:06:50 +0200, Martin Vignali wrote:
> +This filter export frame metadata @code{lavfi.blackframe.pblack}.
> +The value represent the percentage of pixels in the picture that


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