#1649: add a volumedetect audio filter
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Reporter: dericed | Type:
Status: new | enhancement
Component: | Priority: normal
undetermined | Version:
Keywords: | unspecified
avfilter,volume | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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There is a nice volume audio filter that enables the audio volume to be
raised or lowered according to a fraction or db value. I often need to
create media files where the audio volume is scaled to a specified db
value. Right now to do this I have to pipe from ffmpeg to normalize (to
get the volume expressed in db), then do the math to determine the
difference between the volume I have and the volume I want, and then use
the volume filter in ffmpeg to make that adjustment.
I suggest that ffmpeg add a volumedetect filter to assess the volume of an
audio stream (similar to how normalize does) as it would be nice to do
this process in one tool.
I think the combination of cropdetect and crop is similar to this request,
since cropdetect can be used on a first pass to determine an appropriate
crop and then the returned value can be used in the crop filter of a
second pass. Doing something similar with a volumedetect filter then the
existing volume filter would be very useful.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1649>
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