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

Christoph Gerstbauer christophgerstbauer at gmail.com
Sun May 17 13:49:47 CEST 2015

>> 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
Hello Carl, no, I don´t.
Can you explain this to me?
I always thought that SD broadcast levels has to be >16 and <235.

Best Regards

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