#0  0x00007feb83f7973a in FcConfigFilename () from /usr/lib/libfontconfig.so.1
No symbol table info available.
#1  0x00007feb83f8d3a7 in FcConfigParseAndLoad ()
   from /usr/lib/libfontconfig.so.1
No symbol table info available.
#2  0x00007feb74469461 in ?? () from /usr/lib/libass.so.3
No symbol table info available.
#3  0x00007feb7446bb46 in ass_set_fonts () from /usr/lib/libass.so.3
No symbol table info available.
#4  0x00007feb7467aa7a in ?? () from /usr/lib/vlc/codec/liblibass_plugin.so
No symbol table info available.
#5  0x00007feb8b536db3 in __module_need () from /usr/lib/libvlccore.so.2
No symbol table info available.
#6  0x00007feb8b4f2950 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#7  0x00007feb8b4f5dac in input_DecoderNew () from /usr/lib/libvlccore.so.2
No symbol table info available.
#8  0x00007feb8b4f915e in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#9  0x00007feb8b4f9305 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#10 0x00007feb8b4f9e73 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#11 0x00007feb8b4fd161 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#12 0x00007feb8b4ff62e in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#13 0x00007feb8b5013e6 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#14 0x00007feb8b502dae in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#15 0x00007feb8b507f31 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#16 0x00007feb8b50a1e5 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#17 0x00007feb8b53d0d4 in ?? () from /usr/lib/libvlccore.so.2
No symbol table info available.
#18 0x00007feb8b790a04 in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#19 0x00007feb8ba857bd in clone () from /lib/libc.so.6
No symbol table info available.
#20 0x0000000000000000 in ?? ()
No symbol table info available.