3F2M/LFE vs 3F2R/LFE - Why won't it decode as Dolby Digital?

[sugarpump42]

What is the new the "3F2M/LFE" that I see appearing under the audio codec stats in the latest videos?

My Marantz decoder will not decode this as Dolby Digital like it does 3F2R/LFE. It defaults to Dolby Pro Logic II. I know 3F2R/LFE stands for 3 front speakers, 2 rear, and the LFE channel (5.1).

But does the "2M" mean in 3F2M/LFE?

Why won't this decode as Dolby Digital?

Tried both 2.2.6 and the latest nightly build (vlc-3.0.0-20171006-0452) on a MacBook Pro Laptop.


Type: Audio
Codec: A/52 B Audio (aka E-AC3) (eac3)
Language: English
Channels 3F2M/LFE
Sample rate: 48000 Hz
Bits per sample: 32

[Rémi Denis-Courmont]

3 front, 2 middle

[smhealey]

I have the same issue https://forum.videolan.org/viewtopic.ph ... c3#p461798

[InTheWings]

You file is signaling 5.1 with side channels. Blame your hardware.