FORM_TAG           58 libavformat/rl2.c     if(AV_RB32(&p->buf[0]) != FORM_TAG)
FORM_TAG          119 libavformat/wc3movie.c     if ((AV_RL32(&p->buf[0]) != FORM_TAG) ||
FORM_TAG          207 libavformat/westwood.c     if ((AV_RB32(&p->buf[0]) != FORM_TAG) ||