5.1 atrac3plus mapped wrongly by the FOSS audio decoders

[filler56789]

When decompressed by LAV Audio, MPC Audio Decoder or MPV,
the audio channels of this sample file are mapped wrongly:

back-left is sent to LFE,
back-right is sent to back-left,
and LFE is sent to back-right.

https://www.mediafire.com/file/qazbkif0xwf60fp/atrac3plus-multichsample.7z/file

[filler56789]

Bug (or design flaw...) reported to ffmpeg's trac:

https://trac.ffmpeg.org/ticket/9964

[filler56789]

back-left is sent to LFE,
back-right is sent to back-left,
and LFE is sent to back-right.

According to this page (https://wiki.multimedia.cx/index.php/ATRAC3plus#Multichannel_ATRAC3plus_(ATRAC-X)),
it appears the ffmpeg developer for a moment forgot the difference between encoding and decoding. :D

https://wiki.multimedia.cx/index.php/ATRAC3plus#ATRAC-X_channel_configurations)

[filler56789]

FIXED, they say. :)

http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=3819719099df601c470e961b9d49b9100c65641b

[tebasuna51]

Yep, seems work fine with my last ffmpeg version N-109027-g202b7a9ae7-20221107