Paul B Mahol <onemda <at> gmail.com> writes: > +static int msf_probe(AVProbeData *p) > +{ > + if (memcmp(p->buf, "MSF", 3)) > + return 0; > + > + return AVPROBE_SCORE_MAX; Should be less than EXTENSION / 2 but you can check codec and channels. Carl Eugen