toc2msf
static void toc2msf(u_int, u_int *, u_int *, u_int *);
toc2msf(tr1-1, &tm, &ts, &tf);
toc2msf(tr1, &tm, &ts, &tf);
toc2msf(n, &m2, &s2, &f2);
toc2msf(tr2, &tm, &ts, &tf);
toc2msf(n, &tm, &ts, &tf);