Program received signal SIGSEGV, Segmentation fault.
0x00002b361f470965 in nb_encode (state=0x50d2b0, vin=0x7fff8b753730,
    bits=0x7fff8b755ef0) at nb_celp.c:364
364           if (!st->submodes[st->submodeID] || st->vbr_enabled || st->vad_enabled || SUBMODE(forced_pitch_gain) ||
(gdb)                        
        (gdb) bt
#0  0x00002b361f470965 in nb_encode (state=0x50d2b0, vin=0x7fff8b753730,
    bits=0x7fff8b755ef0) at nb_celp.c:364
#1  0x00002b361f47be4b in speex_encode_int (state=0x50d2b0, in=0x7fff8b7541e0,
    bits=0x7fff8b755ef0) at speex.c:144
#2  0x00000000004024a4 in main (argc=<value optimized out>,
    argv=<value optimized out>) at speexenc.c:701
(gdb)