Opened 5 years ago

Last modified 9 months ago

#7061 new enhancement

Loudness histogram - like "showwavespic"-filter?

Reported by: Florian Owned by:
Priority: wish Component: avfilter
Version: git-master Keywords: loudness histogram
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Would it be possible to add a new filter, that can show the integrated loudness value of a file as a histogram in one picture? Similar to the filter "showwavespic" or "showspectrumpic".
It could look like the histogram here: http://f-video.s3.amazonaws.com/meters-large.jpg
This would really help my workflows for loudness as I could see on the scale where the loudness is bigger than it should. A graph with more than the integrated value would be cool, for example showing also the loudness range or short term or momentary values.
Thanks for considering my enhancement proposal - keep up the good work!

Change History (4)

comment:1 by Elon Musk, 5 years ago

Whats wrong with ebur128 filter video output?

comment:2 by Florian, 5 years ago

I want one picture, one single frame of the whole file - like with "showwavespic" or "showspectrumpic". With the ebur128 filter I only get a live output of the whole file, not an overview of the whole file.
If this would be possible with the ebur128 filter, then I would use this. But I have no idea how and would be very greatful for a tip. :)

comment:3 by Elon Musk, 4 years ago

Priority: normalwish

comment:4 by Elon Musk, 9 months ago

ffmpeg -i music.flac -lavfi ebur128=metadata=1:framelog=verbose,adrawgraph=slide=picture:s=hd1080:m1=lavfi.r128.M:max=30:min=-99:m2=lavfi.r128.S:m3=lavfi.r128.I:m4=lavfi.r128.LRA -y out.pam

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