Opened 12 years ago
Closed 12 years ago
#1649 closed enhancement (fixed)
add a volumedetect audio filter
Reported by: | dave rice | Owned by: | |
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Priority: | wish | Component: | avfilter |
Version: | git-master | Keywords: | volume volumedetect |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | yes | |
Analyzed by developer: | yes |
Description
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.
Change History (3)
comment:1 by , 12 years ago
Component: | undetermined → avfilter |
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Keywords: | avfilter removed |
Status: | new → open |
Version: | unspecified → git-master |
comment:2 by , 12 years ago
Priority: | normal → wish |
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comment:3 by , 12 years ago
Analyzed by developer: | set |
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Keywords: | volumedetect added |
Reproduced by developer: | set |
Resolution: | → fixed |
Status: | open → closed |
Shoulld be fixed by the volumedetect filter, added in: