If this is still an issue in newer versions of libav, please follow https://libav.org/bugreports.html and report the issue upstream.
** Changed in: libav (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to libav in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/1293443 Title: avconv crashed with SIGFPE in ff_mpa_check_header() Status in libav package in Ubuntu: Incomplete Bug description: Only on stream copy, no crash when recoding using -c:a libmp3lame, output ok but error log shows Input stream #0:0 frame changed from rate:44100 fmt:s16p ch:2 chl:stereo to rate:44100 fmt:s16p ch:1 chl:mono [abuffer @ 0x1100f60] Changing frame properties on the fly is not supported. [mp3 @ 0x10e0e80] Header missing Error while decoding stream #0:0 [mp3 @ 0x10e0e80] Header missing Error while decoding stream #0:0 [mp3 @ 0x10e0e80] Header missing Error while decoding stream #0:0 Input stream #0:0 frame changed from rate:44100 fmt:s16p ch:1 chl:mono to rate:48000 fmt:s16p ch:2 chl:stereo [abuffer @ 0x1103100] Changing frame properties on the fly is not supported. Input stream #0:0 frame changed from rate:48000 fmt:s16p ch:2 chl:stereo to rate:44100 fmt:s16p ch:2 chl:stereo incomplete frametime=1480.88 bitrate= 128.0kbits/s Error while decoding stream #0:0 ProblemType: Crash DistroRelease: Ubuntu 14.04 Package: libav-tools 6:9.11-2ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CrashCounter: 1 CurrentDesktop: KDE Date: Mon Mar 17 10:03:32 2014 ExecutablePath: /usr/bin/avconv InstallationDate: Installed on 2014-02-21 (23 days ago) InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131219) ProcCmdline: avconv -i /home/username/Downloads/«inputfile».mpeg -c:a copy «outputfile»-2205.mp3 Signal: 8 SourcePackage: libav StacktraceTop: avpriv_mpegaudio_decode_header () from /usr/lib/x86_64-linux-gnu/libavcodec.so.54 ?? () from /usr/lib/x86_64-linux-gnu/libavformat.so.54 ?? () from /usr/lib/x86_64-linux-gnu/libavformat.so.54 av_interleaved_write_frame () from /usr/lib/x86_64-linux-gnu/libavformat.so.54 ?? () Title: avconv crashed with SIGFPE in avpriv_mpegaudio_decode_header() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _cvsadmin adm cdrom dip lpadmin plugdev sambashare sudo To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libav/+bug/1293443/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp