计算h264码流slice的数目及大小

#include <stdio.h> #include <string.h> #include <stdlib.h> #define Size 500 void main() { FILE *file; if((file = fopen("test.264","rb"))==NULL) { printf("Cannot open the file.\n"); exit(0); } // FILE*pf; // pf=file; int position_last,position_now; position_last=position_now=0; int *size=new int[Size]; memset(size,0,Size); int count=0; FILE*doc; if((doc = fopen("size.txt","w"))==NULL) { printf("Cannot open the txt.\n"); exit(0); } char *flag; flag=new char[4]; flag[0]=0*0; flag[1]=0*0; flag[2]=0*0; flag[3]=1; int i=0; for(int j=0;;j++) { char *buf; buf=new char[4]; fread(buf,sizeof(char),4,file); // char *buf1;char *buf2;char *buf3;char *buf4; // if(strcmp(0*00,ch[0])==0&&strcmp(0*00,ch[1])==0&&strcmp(0*00,ch[2])==0&&strcmp(0*01,ch[3])==0)) // if(strcmp(flag,buf)==0) if(strcmp(buf,flag)==0&&strcmp(buf+1,flag+1)==0&&strcmp(buf+2,flag+2)==0&&strcmp(buf+3,flag+3)==0) { i++; if(i==3) { position_now=ftell(file); } else if(i>3) { position_last=position_now; position_now=ftell(file); size[count]=position_now-position_last; char ch[5]; itoa(size[count],ch,10); fwrite(ch,1,5,doc); fwrite(" ",sizeof(" "),1,doc); if(i%5==0) fwrite("\r\n",sizeof("\r\n"),1,doc); count++; } } delete[] buf; if(feof(file)) { position_last=position_now; position_now=ftell(file); count++; break; } fseek(file,-3,SEEK_CUR); } printf("count is:%d\n",count); delete[] size; fclose(file); fclose(doc); }