[FFmpeg-trac] #9964(avcodec:new): ffplay: wrong channel mapping in decoded 5.1 ATRAC3plus stream

[FFmpeg]

#9964: ffplay: wrong channel mapping in decoded 5.1 ATRAC3plus stream
-------------------------------------+-------------------------------------
             Reporter:  ptalarbvorm  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:
             Keywords:  atrac3plus,  |  unspecified
  multichannel, channel-layout       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 When decoding a 5.1 atrac3plus stream (container = .WAV),
 ffplay sends the last 3 channels to the wrong speakers:
 the back-left channel is sent to the LFE speaker, the back-right channel
 to the back-left speaker, and the LFE channel goes to the back-right
 speaker.
 I've uploaded an archive containing a test file and its uncompressed-PCM
 source to MediaFire:

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

 How to reproduce:
 {{{
 % ffplay ATRAC3plus-5p1.wav -autoexit
 ffplay version N-108492-gb92e14147f-20221004 Copyright (c) 2003-2022 the
 FFmpeg developers
   built with gcc 12.1.0 (crosstool-NG 1.25.0.55_3defb7b)
   configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
 --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32-
  --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3
 --disable-debug --disable-w32threads --enable-pthreads --enabl
 e-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-
 libfribidi --enable-gmp --enable-lzma --enable-fontconfig -
 -enable-libvorbis --enable-opencl --disable-libpulse --enable-libvmaf
 --disable-libxcb --disable-xlib --enable-amf --enable-liba
 om --enable-libaribb24 --enable-avisynth --enable-libdav1d --enable-
 libdavs2 --disable-libfdk-aac --enable-ffnvcodec --enable-cu
 da-llvm --enable-frei0r --enable-libgme --enable-libkvazaar --enable-
 libass --enable-libbluray --enable-libjxl --enable-libmp3la
 me --enable-libopus --enable-librist --enable-libssh --enable-libtheora
 --enable-libvpx --enable-libwebp --enable-lv2 --enable-l
 ibmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
 libopenh264 --enable-libopenjpeg --enable-libopenmpt --enab
 le-librav1e --enable-librubberband --enable-schannel --enable-sdl2
 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-
 libtwolame --enable-libuavs3d --disable-libdrm --disable-vaapi --enable-
 libvidstab --enable-vulkan --enable-libshaderc --enable-
 libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-
 libxvid --enable-libzimg --enable-libzvbi --extra-cflags
 =-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-
 ldexeflags= --extra-libs=-lgomp --extra-version=20221004

   libavutil      57. 38.100 / 57. 38.100
   libavcodec     59. 50.100 / 59. 50.100
   libavformat    59. 34.100 / 59. 34.100
   libavdevice    59.  8.101 / 59.  8.101
   libavfilter     8. 49.101 /  8. 49.101
   libswscale      6.  8.112 /  6.  8.112
   libswresample   4.  9.100 /  4.  9.100
   libpostproc    56.  7.100 / 56.  7.100
 Input #0, wav, from 'ATRAC3plus-5p1.wav':=    0KB sq=    0B f=0/0
   Duration: 00:00:05.84, bitrate: 517 kb/s
   Stream #0:0: Audio: atrac3p, 48000 Hz, 5.1, fltp, 513 kb/s
    5.82 M-A: -0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0
 }}}

 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9964>
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