[FFmpeg-user] Numerical histogram output for checking typical broadcast ranges (16-235)

Carl Eugen Hoyos cehoyos at ag.or.at
Sat May 10 11:38:24 CEST 2014

Christoph Gerstbauer <christophgerstbauer <at> gmx.at> writes:

> I am very new in using the histogram filter.
> (http://ffmpeg.org/ffmpeg-filters.html#histogram)
> Is it possible to dump the video level values from which 
> the histogram graph is drawn into numeric values (textfile 
> dump) to check if a video has levels inside the broadcast 
> ranges (16-235/94-940)?

Sorry if I misunderstand (and my knowledge about the question 
is definitely limited) but do you realise that valid 
(specification-compliant) broadcast-range video may contain 
values < 16 and > 235?

Carl Eugen

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