#0  0xb7197377 in memset () from /lib/tls/i686/cmov/libc.so.6
#1  0xb4cde99c in avcodec_default_get_buffer ()
   from /usr/lib/i686/cmov/libavcodec.so.52
#2  0xb5f27d30 in ?? ()
#3  0x80808080 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)