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Old 8th October 2022, 09:46   #1  |  Link
filler56789
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5.1 atrac3plus mapped wrongly by the FOSS audio decoders

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/qazbk...sample.7z/file
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Old 8th October 2022, 14:00   #2  |  Link
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Bug (or design flaw...) reported to ffmpeg's trac:

https://trac.ffmpeg.org/ticket/9964
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Old 9th October 2022, 06:14   #3  |  Link
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Quote:
Originally Posted by 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,
it appears the ffmpeg developer for a moment forgot the difference between encoding and decoding.

https://wiki.multimedia.cx/index.php...configurations)
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Last edited by filler56789; 9th October 2022 at 12:07.
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Old 3rd December 2022, 16:11   #4  |  Link
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FIXED, they say.

http://git.videolan.org/?p=ffmpeg.gi...49b9100c65641b
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Old 4th December 2022, 10:34   #5  |  Link
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Yep, seems work fine with my last ffmpeg version N-109027-g202b7a9ae7-20221107
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