Opened 3 months ago

Last modified 3 months ago

#7271 open defect

Converting aac fails

Reported by: eangelov Owned by:
Priority: important Component: avformat
Version: git-master Keywords: aac regression
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description (last modified by cehoyos)

After updating to version 4.0 converting m4a to mp3 broke

PS D:\> .\ffmpeg.exe -i .\test.m4a test.mp3
ffmpeg version 4.0 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100
[aac @ 0000028945cea440] Could not find codec parameters for stream 0 (Audio: aac, 0 channels, fltp): unspecified sample rate
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, aac, from '.\test.m4a':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Audio: aac, 0 channels, fltp
Output #0, mp3, to 'test.mp3':
Output file #0 does not contain any stream




When using ffmpeg 3.4.2 with the same input, the file in converted

PS D:\> .\ffmpeg_3.exe -i .\test.m4a test.mp3
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libmfx --enable-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
[aac @ 000001ac8a913800] Input buffer exhausted before END element found
[aac @ 000001ac89146ea0] Estimating duration from bitrate, this may be inaccurate
Input #0, aac, from '.\test.m4a':
  Duration: 00:05:08.76, bitrate: 146 kb/s
    Stream #0:0: Audio: aac (LC), 48000 Hz, stereo, fltp, 146 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (aac (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
[aac @ 000001ac8a9b4700] Input buffer exhausted before END element found
Error while decoding stream #0:0: Invalid data found when processing input
Output #0, mp3, to 'test.mp3':
  Metadata:
    TSSE            : Lavf57.83.100
    Stream #0:0: Audio: mp3 (libmp3lame), 48000 Hz, stereo, fltp
    Metadata:
      encoder         : Lavc57.107.100 libmp3lame
size=    4697kB time=00:05:00.57 bitrate= 128.0kbits/s speed=17.3x
video:0kB audio:4696kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.004928%

Both ffmpeg versions are static builds for windows 10 64 bit

Attachments (1)

test.m4a (1011.6 KB) - added by eangelov 3 months ago.
Test file

Download all attachments as: .zip

Change History (2)

Changed 3 months ago by eangelov

Test file

comment:1 Changed 3 months ago by cehoyos

  • Component changed from ffmpeg to avformat
  • Description modified (diff)
  • Keywords aac regression added
  • Priority changed from normal to important
  • Reproduced by developer set
  • Status changed from new to open
  • Summary changed from Converting m4a file to mp3 not wokring with ffmpeg 4.0 to Converting aac fails
  • Version changed from unspecified to git-master
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