NC_VIDEO_FLAG      32 libavformat/ncdec.c     if (AV_RB32(probe_packet->buf) != NC_VIDEO_FLAG)
NC_VIDEO_FLAG      40 libavformat/ncdec.c     if (AV_RB32(probe_packet->buf+16+size) == NC_VIDEO_FLAG)
NC_VIDEO_FLAG      68 libavformat/ncdec.c     while (state != NC_VIDEO_FLAG) {