id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
1649,add a volumedetect audio filter,dericed,,"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.",enhancement,closed,wish,avfilter,git-master,fixed,volume volumedetect,,,,1,1