#0  0xb1c6c620 in ?? () from /usr/lib/libmpeg2.so.0
#1  0x00000010 in ?? ()
#2  0xb1c6099d in ?? () from /usr/lib/libmpeg2.so.0
#3  0xb1b26d40 in ?? ()
#4  0x00002d2b in ?? ()
#5  0x000005a0 in ?? ()
#6  0x00000008 in ?? ()
#7  0xb0f210d8 in ?? ()
#8  0xb7cabbf0 in pthread_mutex_unlock ()
   from /lib/tls/i686/cmov/libpthread.so.0
Backtrace stopped: previous frame inner to this frame (corrupt stack?)