dual-mono 2 channel MPEG Layer 2 files should be played as stereo (like in ffplay and MPC), 2 channel should be shown in codec info
I have stereo file which wrongly has Format settings: Dual mono (Mediainfo info and file icluded) but 2 channels. VLC is the only player which uses only left channel (like in #21545 (closed)) in both L and R of my speakers by default. Please reconsider default behaviour. Also can you please show channel info in VLC codec info (you will need it, I think).
Mediainfo (compare to VLC codec info):
General
Unique ID : 137193082324776112614547908247654095879 (0x67366D31CDF64248B63E3DA2FEC5DC07)
Complete name : L:\Eurovision Song Contest 2019. Tel Aviv, Israel\01.ESC 2019. Tel Aviv. Semifinal 1_FEED 1080i. J Silver.mka
Format : Matroska
Format version : Version 4
File size : 377 MiB
Duration : 2 h 17 min
Overall bit rate mode : Constant
Overall bit rate : 385 kb/s
Encoded date : UTC 2019-06-07 11:21:18
Writing application : mkvmerge v34.0.0 ('Sight and Seen') 64-bit
Writing library : libebml v1.3.7 + libmatroska v1.5.0
Audio
ID : 1
Format : MPEG Audio
Format version : Version 1
Format profile : Layer 2
Format settings : Dual mono
Codec ID : A_MPEG/L2
Codec ID/Hint : MP2
Duration : 2 h 17 min
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 2 channels //this is important
Sampling rate : 48.0 kHz
Frame rate : 41.667 FPS (1152 SPF)
Compression mode : Lossy
Stream size : 376 MiB (100%)
Default : Yes
Forced : No