Opened 23 months ago

Last modified 22 months ago

#5943 open defect

mpeg-4 als: "Overread 8" with 8bit file

Reported by: ami_stuff Owned by:
Priority: normal Component: avcodec
Version: git-master Keywords: als
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description

encoded with:

C:\>mp4alsRM23.exe -MP4 -7 -i d:\8mono_7_i.wav
C:\>ffmpeg -i D:\8mono_7_i.mp4 D:\out.wav
ffmpeg version N-78758-g5156578 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
ble-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --
enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-lib
x265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-d
ecklink --enable-zlib
  libavutil      55. 19.100 / 55. 19.100
  libavcodec     57. 27.100 / 57. 27.100
  libavformat    57. 26.100 / 57. 26.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 37.100 /  6. 37.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Guessed Channel Layout for  Input Stream #0.0 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'D:\8mono_7_i.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    creation_time   : 2016-11-12 14:06:09
  Duration: 00:00:05.00, start: 0.000000, bitrate: 45 kb/s
    Stream #0:0(und): Audio: mp4als (mp4a / 0x6134706D), 48000 Hz, 1 channels, s
16 (8 bit), 44 kb/s (default)
    Metadata:
      creation_time   : 2016-11-12 14:06:09
Output #0, wav, to 'D:\out.wav':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    ISFT            : Lavf57.26.100
    Stream #0:0(und): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, mono,
s16 (8 bit), 768 kb/s (default)
    Metadata:
      creation_time   : 2016-11-12 14:06:09
      encoder         : Lavc57.27.100 pcm_s16le
Stream mapping:
  Stream #0:0 -> #0:0 (mp4als (als) -> pcm_s16le (native))
Press [q] to stop, [?] for help
[als @ 03906020] Overread 8
[als @ 03906020] Reading frame data failed. Skipping RA unit.
size=     509kB time=00:00:05.42 bitrate= 768.1kbits/s speed= 174x
video:0kB audio:509kB subtitle:0kB other streams:0kB global headers:0kB muxing o
verhead: 0.014972%

Attachments (2)

8mono_7_i.mp4 (27.8 KB) - added by ami_stuff 23 months ago.
8mono_7_i.wav (234.5 KB) - added by ami_stuff 22 months ago.

Download all attachments as: .zip

Change History (3)

Changed 23 months ago by ami_stuff

comment:1 Changed 22 months ago by cehoyos

  • Component changed from undetermined to avcodec
  • Keywords als added
  • Reproduced by developer set
  • Status changed from new to open
  • Version changed from unspecified to git-master

Maybe you also want to upload the input or the intended output?

Changed 22 months ago by ami_stuff

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