headdefine.h

是codic算法实现Sin的浮点C程序

#include <iostream.h>
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include <malloc.h>

#define LONG_PI     2147483648  //The second power of 31.
#define SHORT_PI      256		//The second power of 16.
#define SHORT_PI_CORDIC      65536		//The second power of 16.
#define BACK_BIT      (31-8)
#define PI 3.141592653589793
#define Z_LENGTH_N     1445

#define NTSC
//#define PAL
//#define SECAM


#define FS		27000000			// sample frequency

#ifdef NTSC
	#define FLAG				0
	#define H_LENGTH			1716		// 1716 samples every line
	#define C_LENGTH			1428		// 1428 samples every line for Y and C data
	#define H_NUMBER_ACTIVE		480
	#define N_FRAME				1			// frame numbers
	#define	LINES_FRAME			525			// 525 lines per frame
	#define	H_NUMBER			(LINES_FRAME * N_FRAME)	// line numbers to simulate
	#define	BURST_POSITION		(144 - 1)	// the 144th sample is the start of burst in every line
	#define	BURST_START_LINE1	(10 - 1)	// burst starts from the 10th line of filed 1
	#define	BURST_END_LINE1		(262 - 1)	// burst ends from the 262th line of filed 1
	#define	BURST_START_LINE2	(273 - 1)	// burst starts from the 273th line of filed 2
	#define	BURST_END_LINE2		(525 - 1)	// burst starts from the 525th line of filed 2
	#define	VIDEO_START_LINE1	(23 - 1)	// video signal starts from the 23th line of filed 1
	#define	VIDEO_END_LINE1		(262 - 1)	// video signal ends from the 262th line of filed 1
	#define	VIDEO_START_LINE2	(286 - 1)	// video signal starts from the 286th line of filed 2
	#define	VIDEO_END_LINE2		(525 - 1)	// video signal starts from the 10th line of filed 2
	#define	VIDEO_START			(250 - 1)	// video signal starts from 250th sample in every line
	#define	VIDEO_END			(1677 - 1)	// video signal ends from 1677th sample in every line
	#define SUM_H_NUMBER_ACTIVE	(H_NUMBER_ACTIVE * N_FRAME) // totle line number


	//variants for PLL
	#define	 FO			(3579545.06 - 500)	// color carrier frequency for NTSC +-500Hz
	#define	 N_SUM		30		// for NTSC, there are 7.5 (3432/455) samples in a period
								// accumulate the output of multiplyer in 2 periods
	#define	 N_DP		12		// use color burst in 12 lines to detect phase one time	
	#endif

#ifdef PAL
	#define FLAG				1
	#define H_LENGTH			1728		// 1728 samples every line
/*-----------will be modified----------*/
	#define C_LENGTH			1428		// 1428 samples every line for Y and C data
	#define H_NUMBER_ACTIVE		480
/*-------------------------------------*/
	#define N_FRAME				2			// frame numbers
	#define	LINES_FRAME			625			// 625 lines per frame
	#define	H_NUMBER			(LINES_FRAME * N_FRAME)	// line numbers to simulate
	#define	BURST_POSITION		(152 - 1)	// the 152th sample is the start of burst in every line
	#define	BURST_START_LINE1	(7 - 1)		// burst starts from the 7th line of filed 1
	#define	BURST_END_LINE1		(309 - 1)	// burst ends from the 309th line of filed 1
	#define	BURST_START_LINE2	(320 - 1)	// burst starts from the 320th line of filed 2
	#define	BURST_END_LINE2		(621 - 1)	// burst starts from the 621th line of filed 2
/*-----------will be modified----------*/
	#define	VIDEO_START_LINE1	(23 - 1)	// video signal starts from the 23th line of filed 1
	#define	VIDEO_END_LINE1		(262 - 1)	// video signal ends from the 262th line of filed 1
	#define	VIDEO_START_LINE2	(286 - 1)	// video signal starts from the 286th line of filed 2
	#define	VIDEO_END_LINE2		(525 - 1)	// video signal starts from the 10th line of filed 2
/*-------------------------------------*/
	#define	VIDEO_START			(285 - 1)	// video signal starts from 285th sample in every line
    #define	VIDEO_END			(1530 - 1)	// video signal ends from 1530th sample in every line
	#define SUM_H_NUMBER_ACTIVE	(H_NUMBER_ACTIVE * N_FRAME) // totle line number
	
	// variants for PLL	
	#define	FO					(4433618.75 - 510)	// color carrier frequency for PAL
	#define	N_SUM				36		// for PAL, there are 6 (1728/(1135/4+1/625)) samples in a period
	#define	N_DP				12		// use color burst in 12 lines to detect phase one time
										// accumulate the output of multiplyer in 2 periods

#endif




#ifdef SECAM
	#define FLAG            2
	#define H_LENGTH       ????
	#define C_LENGTH       ????
#endif

//(VIDEO_END_LINE1 - VIDEO_START_LINE1 + VIDEO_END_LINE2 - VIDEO_START_LINE2 + 2) 
//constant for filter

//Function declaration
int intAtan2(int, int);
int intSin(unsigned long); 

void intFilter(int (*)[C_LENGTH], int (*)[C_LENGTH], int, int, int *, int);
void intUVOutWrite(int *, int (*)[C_LENGTH], int (*)[C_LENGTH], int,int);

float atan2Cordic(float, float);
int intAtan2Cordic(int, int);

double sinCordic(double);
int intSinCordic(unsigned long);