[FFmpeg-user] AC3 encoding problem - wrong audio tag?

[Andy Furniss]

Andy Furniss wrote:

> One thing I notice is that if I make ac3 with ffmpeg then mediainfo
> shows the channels like -
>
> Channel positions                        : Front: L C R, Back: L R, LFE
> Channel positions                        : 3/0/2.1

This only seems to happen with avi.

I've done the same test with mpeg, mkv and m2ts and it looks normal with 
them.

It also reports dialnorm of -31 for these but nothing for avi.