I had a very similar issue with kfilemetadatareader (from kdelibs-bin) and mkv files. The backtrace looked the same. (kfilemetadatareader uses libstreamanalyzer that uses libavformat)
Applying this patch to libavformat solved the problem: lavf: prevent infinite loops while flushing in avformat_find_stream_info http://patches.libav.org/patch/15513/ . -- Matthieu -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
