On Wed, Apr 4, 2012 at 10:04:25 -0400, Jack Hill wrote: > Package: libav-tools > Version: 4:0.8.1-1 > Severity: normal > > Dear Maintainer, > > Using the avconv executable to encode a video with the vp8 codec (via libvpx) > fails with a bus error. This happens with both webm and mkv containers. > The error does not happen if a different codec is chosen (e.g. libtheora). > > To reproduce: > 0) get a video encoded in something other than vp8 (I used youtube-dl to get > an h.264 encoded video). > 1) try to transcode it with > avconv -i infile.mp4 outfile.webm > (avconv automatically chooses libvpx for a .webm file) > 2) observe failure. > > I will appily provide more debuggin information if provided with instructions > for obtaining. > Get debug symbols for avconv and the relevant libraries (at least libav* and libvpx). There'll either be a -dbg package in the archive, or you can rebuild from source with DEB_BUILD_OPTIONS=nostrip set in the build environment. Then run avconv in gdb, and get a full backtrace when it crashes.
See also http://wiki.debian.org/HowToGetABacktrace Cheers, Julien
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