[FFmpeg-user] ProRes422 with 8 audio tracks converted to mp4 -- muffles audio 4

[Carl Eugen Hoyos]

2018-11-21 18:18 GMT+01:00, Harvey Pikelberger <communque at gmail.com>:

> RE "The audio configuration of your two input is very different..."
> Is the issue that the ProRes is encoded 7.1 -- or -- that it's not 7.1
> but FFmpeg is interpreting as such?

I missed "Guessed Channel Layout for Input Stream #0.1 : 7.1" and
after looking at the file, the channel layout is not supported by FFmpeg.

Not sure if it really would make a difference if the layout were
recognized, you would still have to use the split filter because
the channel layout couldn't be written and writing it will not be
trivial imo.

Carl Eugen