[FFmpeg-user] When AIFF to WAV, ReplayGain is not extracted as Side data.

[Moritz Barsnick]

On Wed, Mar 13, 2019 at 12:30:16 +0900, yas tam wrote:
> I uploaded the sample file of AIFF with ReplayGain.
> I also uploaded Flac file and Apple Lossless file of the same sound source.
> 
> https://www.dropbox.com/sh/zk3l8sn69zo2skc/AACgAyNqfgW2Pdsob90R7MBva?dl=0

Nice, thanks!

I have posted a proposed patch to the ffmpeg development mailing list:
http://ffmpeg.org/pipermail/ffmpeg-devel/2019-March/241033.html

It works for me with your provided AIFF file - I can now see the
sidedata displayed for the input file, and the volume filter takes
effect when used with "-af volume=replaygain=track".

If you build your own ffmpeg from source, you can apply that patch and
try for yourself. Otherwise wait and see whether the maintainers accept
it.

Cheers,
Moritz