t.c

音视频编解码的H.263协议-C语言编写

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "math.h"
#include "RGB.h"

char *Cptr;
int val[256];

main()
{
FILE *Ip;
FILE *Op;
int j,k=0,i;
char *filename="/home2/H263/orig/tmndec-2.0/SAMPLE/YTAB.ORIG";
int index;
char s1[12],s2[12],s3[12];
int r,g,b;
int mind,nearest;
int d;
int n=0;


	for (i=0;i<216;i++)
	{
	RGBconvert[i].red = RGBconvert[i].red>>8;
	RGBconvert[i].green = RGBconvert[i].green>>8;
	RGBconvert[i].blue = RGBconvert[i].blue>>8;
	}

	Op=fopen("YTAB.XLAT","w");

	Ip=fopen(filename,"r");
	while (fscanf(Ip,"%*s %d %s %s %s",&index,s1,s2,s3)>0)
	{

		Cptr=strchr(s1,(int)'=');
		Cptr++;
		r=atoi(Cptr);
		Cptr=strchr(s2,(int)'=');
		Cptr++;
		g=atoi(Cptr);
		Cptr=strchr(s3,(int)'=');
		Cptr++;
		b=atoi(Cptr);

		mind=1000000;
		for (i=0;i<216;i++)
		{
       	      d=((r - RGBconvert[i].red )*(r - RGBconvert[i].red ))+
		((g - RGBconvert[i].green)*(g - RGBconvert[i].green))+
		((b - RGBconvert[i].blue)*(b - RGBconvert[i].blue));
		/*	d=(int)sqrt((double)d); */
			if (d<mind)
			{
			mind=d;
			nearest=i;
			}
		}
			val[index]=nearest;
	}

for (i=0;i<256;i++)
{
if (!i) fprintf(Op,"static int xlat[256]={");
n++;
if (n>14) {fprintf(Op,"\n\t\t\t"); n=0; }
if (i!=255) fprintf(Op,"%d,",val[i]); else fprintf(Op,"%d};\n\n",val[i]);  
}

exit(0);
}