find_startcode    755 libavformat/nutdec.c         pos = find_startcode(bc, MAIN_STARTCODE, pos) + 1;
find_startcode    765 libavformat/nutdec.c         pos = find_startcode(bc, STREAM_STARTCODE, pos) + 1;
find_startcode   1121 libavformat/nutdec.c         pos = find_startcode(bc, SYNCPOINT_STARTCODE, pos) + 1;
find_startcode   1193 libavformat/nutdec.c     pos = find_startcode(s->pb, SYNCPOINT_STARTCODE, pos2);