utf8len          2291 libavformat/movenc.c     if (t && utf8len(t->value) && track->mode != MODE_MP4)
utf8len          2748 libavformat/movenc.c             if (t && utf8len(t->value))
utf8len          3201 libavformat/movenc.c     if (!t || !utf8len(t->value))
utf8len          3812 libavformat/movenc.c     if (!t || !utf8len(t->value))
utf8len          3916 libavformat/movenc.c     int len = utf8len(str) + 1;