[Karmic] libmp3lame fails in converting audio

[Claudio Moretti]

Binary package hint: libmp3lame0

When extracting audio from FLV files using ffmpeg with libmp3lame, or when resampling audio (using libmp3lame), action fails because of a libmp3lame error.
I tried with a youtube-downloaded file (which is not illegal, because of file quality loss due to FLV conversion and audio resampling)
==========================================================
claudio@Mycroft:~/Scrivania$ apt-cache policy libmp3lame0
libmp3lame0:
  Installato: 3.98.2+debian-0ubuntu1
  Candidato: 3.98.2+debian-0ubuntu1
  Tabella versione:
 *** 3.98.2+debian-0ubuntu1 0
        500 http://archive.ubuntu.com karmic/multiverse Packages
        100 /var/lib/dpkg/status
==========================================================
claudio@Mycroft:~/Scrivania$ ffmpeg -i source.flv -acodec libmp3lame -ac 2 -ab 128K -vn -y destination.mp3
FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static
  libavutil 49.15. 0 / 49.15. 0
  libavcodec 52.20. 0 / 52.20. 0
  libavformat 52.31. 0 / 52.31. 0
  libavdevice 52. 1. 0 / 52. 1. 0
  libavfilter 0. 4. 0 / 0. 4. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0
  built on Apr 10 2009 23:20:33, gcc: 4.3.3

Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
Input #0, flv, from 'source.flv':
  Duration: 00:03:52.52, start: 0.000000, bitrate: 326 kb/s
    Stream #0.0: Video: flv, yuv420p, 320x220, 262 kb/s, 25 tbr, 1k tbn, 1k tbc
    Stream #0.1: Audio: mp3, 22050 Hz, mono, s16, 64 kb/s
Output #0, mp3, to 'destination.mp3':
    Stream #0.0: Audio: libmp3lame, 22050 Hz, stereo, s16, 128 kb/s
Stream mapping:
  Stream #0.1 -> #0.0
Press [q] to stop encoding
[libmp3lame @ 0x21109d0]lame: output buffer too small (buffer index: 8359, free bytes: 1433)
Audio encoding failed
==========================================================
claudio@Mycroft:~/Scrivania$ ffmpeg -i source.mp3 -acodec libmp3lame -ab 64K -ar 44100 destination.mp3
FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static
  libavutil 49.15. 0 / 49.15. 0
  libavcodec 52.20. 0 / 52.20. 0
  libavformat 52.31. 0 / 52.31. 0
  libavdevice 52. 1. 0 / 52. 1. 0
  libavfilter 0. 4. 0 / 0. 4. 0
  libswscale 0. 7. 1 / 0. 7. 1
  libpostproc 51. 2. 0 / 51. 2. 0
  built on Apr 10 2009 23:20:33, gcc: 4.3.3
Input #0, mp3, from 'source.mp3':
  Duration: 00:03:52.64, start: 0.000000, bitrate: 128 kb/s
    Stream #0.0: Audio: mp3, 22050 Hz, stereo, s16, 128 kb/s
Output #0, mp3, to 'destination.mp3':
    Stream #0.0: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
Press [q] to stop encoding
[libmp3lame @ 0xf0d7a0]lame: output buffer too small (buffer index: 9404, free bytes: 388)
Audio encoding failed

[Tuomas Aavikko (taavikko)]

The encoding itself doesn't fail, there's just an error at the end.

[Patrick Geltinger (patlkli)]

I can confirm this.
Obviously downgrading to lame 3.97 solves this problem as well as rebuilding lame and ffmpeg from source.
However, you will get a playable MP3 file at the end, but the error is really annoying.

[David O'Toole (dto1138)]

I rebuilt lame and ffmpeg from newer source and this worked. However, I
did not get usable video files in my original try.

On Sat, 2009-10-10 at 17:59 +0000, Patrick Geltinger wrote:
> I can confirm this.
> Obviously downgrading to lame 3.97 solves this problem as well as rebuilding lame and ffmpeg from source.
> However, you will get a playable MP3 file at the end, but the error is really annoying.
>
> --
> [Karmic] libmp3lame fails in converting audio
> https://bugs.launchpad.net/bugs/401406
> You received this bug notification because you are a direct subscriber
> of a duplicate bug.
>
> Status in “lame” package in Ubuntu: Confirmed
>
> Bug description:
> Binary package hint: libmp3lame0
>
> When extracting audio from FLV files using ffmpeg with libmp3lame, or when resampling audio (using libmp3lame), action fails because of a libmp3lame error.
> I tried with a youtube-downloaded file (which is not illegal, because of file quality loss due to FLV conversion and audio resampling)
> ==========================================================
> claudio@Mycroft:~/Scrivania$ apt-cache policy libmp3lame0
> libmp3lame0:
> Installato: 3.98.2+debian-0ubuntu1
> Candidato: 3.98.2+debian-0ubuntu1
> Tabella versione:
> *** 3.98.2+debian-0ubuntu1 0
> 500 http://archive.ubuntu.com karmic/multiverse Packages
> 100 /var/lib/dpkg/status
> ==========================================================
> claudio@Mycroft:~/Scrivania$ ffmpeg -i source.flv -acodec libmp3lame -ac 2 -ab 128K -vn -y destination.mp3
> FFmpeg version 0.5-svn17737+3:0.svn20090303-1ubuntu6, Copyright (c) 2000-2009 Fabrice Bellard, et al.
> configuration: --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --extra-version=svn17737+3:0.svn20090303-1ubuntu6 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --disable-stripping --disable-vhook --enable-libdc1394 --enable-shared --disable-static
> libavutil 49.15. 0 / 49.15. 0
> libavcodec 52.20. 0 / 52.20. 0
> libavformat 52.31. 0 / 52.31. 0
> libavdevice 52. 1. 0 / 52. 1. 0
> libavfilter 0. 4. 0 / 0. 4. 0
> libswscale 0. 7. 1 / 0. 7. 1
> libpostproc 51. 2. 0 / 51. 2. 0
> built on Apr 10 2009 23:20:33, gcc: 4.3.3
>
> Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
> Input #0, flv, from 'source.flv':
> Duration: 00:03:52.52, start: 0.000000, bitrate: 326 kb/s
> Stream #0.0: Video: flv, yuv420p, 320x220, 262 kb/s, 25 tbr, 1k tbn, 1k tbc
> Stream #0.1: Audio: mp3, 22050 Hz, mono, s16, 64 kb/s
> Output #0, mp3, to 'destination.mp3':
> Stream #0.0: Audio: libmp3lame, 22050 Hz, stereo, s16, 128 kb/s
> Stream mapping:
> Stream #0.1 -> #0.0
> Press [q] to stop encoding
> [libmp3lame @ 0x21109d0]lame: output buffer too small (buffer index: 8359, free bytes: 1433)
> Audio encoding failed
> ==========================================================
> claudio@Mycroft:~/Scrivania$ ffmpeg -i source.mp3 -acodec libmp3lame -ab 64K -ar 44100 destination.mp3
> FFmpeg version 0.5-svn17737+3:0.svn2...

[MarcRandolph (mrand)]

I am setting this to Critical because this appears to be a major regression in (3.98.2+debian-0ubuntu1) that is about to be shipped in 9.10 as compared to (3.98-0.0) that was shipped in 9.04 and 8.10. If someone feels that is not really criticial, please feel free to change it (or let me know and I'll change it).

[Reinhard Tartler (siretart)]

Marillat ships this patch since Tue, 07 Jul 2009:

  * Apply patch from Martin Storsjö to fix the ffmpeg 'buffer too small' bug.

seems to be exactly this issue.

[Reinhard Tartler (siretart)]

test packages available at http://wiki.tauware.de/~siretart/upload-queue/

I don't have my gpg key at hand, if someone can confirm that these package fix the issue, I'll upload tomorrow to karmic.

[Reinhard Tartler (siretart)]

testpackages will shortly appear in the MOTUMedia PPA

please test them and give feedback if the PPA package is better. in contains some additional packages.

[rhpot1991 (rhpot1991)]

I can verify that the packages above fix this error in Karmic. FFmpeg now completes lamemp3 encodings properly.

[Launchpad Janitor (janitor)]

This bug was fixed in the package lame - 3.98.2+debian-0ubuntu2

---------------
lame (3.98.2+debian-0ubuntu2) karmic; urgency=low

  [ Fabian Greffrath ]
  * Prefer my d-u.o address for "official" packages.
  * Ported from debhelper (>= 7.2) to cdbs.
  * Remove redundant DEB_DH_INSTALL_SOURCEDIR.

  [ Reinhard Tartler ]
  * update debian/changelog

  [ Fabian Greffrath ]
  * Revert "update config.guess and config.sub with more recent
    versions"
  * debian/copyright: Vastly improved.
  * cosmetic cleanup
  * Bumped Standards-Version to 3.8.2.
  * Update debian/copyright.
  * Really update debian/changelog.

  [ Reinhard Tartler ]
  * patches taken from the marillat package:
    - fix the ffmpeg 'buffer too small' bug. LP: #401406
    - disable executable stack
    - buggy optimization for single-precision floats when
      -ffinite-math-only
  * reconvert to dh7

 -- Reinhard Tartler <email address hidden> Thu, 22 Oct 2009 22:35:30 +0200

[Qugar (yezumg)]

When I use WinFF to have a flv file to avi (mp3 audio) WinFF reports "Unknown encoder 'libmp3lame'".
With the Firefox extension to give donwloadhelper download and convert a video from the Web, the video is being converted into flv format and its name appears in the conversion failure.
Use libmp3lame0 3.98.2 + debian-0ubuntu2

[David Hamm (davidthamm)]

lucid {libmp3lame0: Installed: 3.98.2+debian-0ubuntu3 winff: Installed: 1.2.0-1ubuntu1}
karmic {libmp3lame0: Installed: 3.98.2+debian-0ubuntu2 winff: Installed: 1.0.4-2ubuntu2}
Same error in both: Unknown encoder 'libmp3lame' , as well as 'libfaac' etc.
was using main ubuntu repo's to download files to convert mpg(video) to mp3(audio)

[David Hamm (davidthamm)]

I apologize for the ruckus, libavcodec-extra-52 solves this problem.