void OrderedDitherImage P((unsigned char *lum , unsigned char *cr , unsigned char *cb , unsigned char *out , int h , int w ));
/* ordered2.c */
void InitOrdered2Dither P((void ));
void Ordered2DitherImage P((unsigned char *lum , unsigned char *cr , unsigned char *cb , unsigned char *out , int h , int w ));
/* mb_ordered.c */
void InitMBOrderedDither P((void ));
void MBOrderedDitherImage P((unsigned char *lum , unsigned char *cr , unsigned char *cb , unsigned char *out , int h , int w ));
void MBOrderedDitherDisplayCopy P((VidStream *vid_stream , int mb_addr , int motion_forw , int r_right_forw , int r_down_forw , int motion_back , int r_right_back , int r_down_back , unsigned char *past , unsigned char *future ));