#define SYNC_WIDTH 39
#define SPC_WIDTH 47
#define TELE_WIDTH 45
#define CH_WIDTH  909
#define CH_OFFSET  (SYNC_WIDTH+SPC_WIDTH+CH_WIDTH+TELE_WIDTH)
#define IMG_WIDTH  2080
#define CHA_OFFSET (SYNC_WIDTH+SPC_WIDTH)
#define CHB_OFFSET (SYNC_WIDTH+SPC_WIDTH+CH_WIDTH+TELE_WIDTH+SYNC_WIDTH+SPC_WIDTH)