#0  0x00007f188edbe776 in ?? () from /lib/libc.so.6
#1  0x00007f188edb9a26 in vfprintf () from /lib/libc.so.6
#2  0x00007f188ee6f0b2 in __fprintf_chk () from /lib/libc.so.6
#3  0x00007f188e73e973 in ?? () from /usr/lib/transcode/filter_extsub.so
#4  0x0000000100000000 in ?? ()
#5  0x0000000100000000 in ?? ()
#6  0x0000000000000000 in ?? ()