Differences in the Channel Layout for certain cases

[nsaadi]

Mediainfo v23.4 We have differences in the Channel Layout for certain cases, for exemple when we use ffmpeg and Sencore they are agree on a Channel Configuration layout: mono (C), and previously with mediainfo we had the value "C", which was fine. However, now mediainfo returns "M", which means mono but in the sense of: not multi-channel.

What can we understand from this new change? We think it's a regression. Is it possible to look into this issue and give us a quick response, please?

Best regards

[JeromeMartinez]

What can we understand from this new change?

We try to do the difference between M (Mono = not multi-channel, or without indicated position) and C (Center = there is a position explicitly indicated).

If you think that the content indicates C rather than M, please share a sample file or at least a MediaInfo report.

We think it's a regression.

Why? And how does it impact you? Difficult to map M to C in your workflow?

Is it possible to look into this issue and give us a quick response, please?

Note that a SLA is not included in the free support so there is no commitment on any answer here, if you need a SLA we provide it, don't hesitate to contact us for details.

[nsaadi]

Here sample: Whit mediainfo 21.09 Mediainfo latest audio_channel.zip

[JeromeMartinez]

As said in the previous message, it is wanted, our current policy for all formats is to handle 1-channel content as "mono" except when the format makes an explicit difference between M and C. what is the issue with handling "M" there? Isn't it a mono-channel content? If not, where are the other channels?

[nsaadi]

Hello For this change, we can adapt. You can close this ticket. Thx