Opened 4 years ago

Closed 4 years ago

#1160 closed defect (fixed)

Musepack 8 file fails to decode

Reported by: cehoyos Owned by:
Priority: normal Component: avcodec
Version: git-master Keywords: mpc8
Cc: ami_stuff@o2.pl Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

(MPlayer bug 1965, second sample)
I will attach a Musepack 8 sample that decodes fine to a 10 seconds wav file with mpcdec from http://files.musepack.net/linux/musepack_linux_2009_02_28.tar.gz but fails to decode with FFmpeg.

$ ffmpeg -i decodererror.mpc out.wav
ffmpeg version N-39476-gc450cf1 Copyright (c) 2000-2012 the FFmpeg developers
  built on Apr  2 2012 12:43:03 with gcc 4.5.3
  configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
  libavutil      51. 44.100 / 51. 44.100
  libavcodec     54. 12.100 / 54. 12.100
  libavformat    54.  3.100 / 54.  3.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 66.101 /  2. 66.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 10.100 /  0. 10.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, mpc8, from 'decodererror.mpc':
  Duration: 00:00:08.35, bitrate: 195 kb/s
    Stream #0:0: Audio: musepack8, 44100 Hz, stereo, s16
Output #0, wav, to 'out.wav':
  Metadata:
    encoder         : Lavf54.3.100
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (mpc8 -> pcm_s16le)
Press [q] to stop, [?] for help
size=       0kB time=00:00:00.00 bitrate=   0.0kbits/s
video:0kB audio:0kB global headers:0kB muxing overhead inf%
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

Attachments (2)

decodererror.mpc (199.9 KB) - added by cehoyos 4 years ago.
mpc8.jpg (17.0 KB) - added by ami_stuff 4 years ago.

Download all attachments as: .zip

Change History (5)

Changed 4 years ago by cehoyos

comment:1 Changed 4 years ago by ami_stuff

I have found the same issue with file encoded with foobar2000.
The problem is that foobar-encoded file have two additional
$00 $00 values at 00010 after $1B value. When you remove these
two values then FFmpeg will decode modified file correctly.

Changed 4 years ago by ami_stuff

comment:2 Changed 4 years ago by ami_stuff

  • Cc ami_stuff@o2.pl added

comment:3 Changed 4 years ago by cehoyos

  • Resolution set to fixed
  • Status changed from new to closed

Should be fixed, thank you for your help!

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