testsound.c

adpcm编码 C语言源程序 可供学习和参考

#include <stdio.h>

#include <stdlib.h>
#include <errno.h>
#include <string.h>

#include <iostream.h>

#include "ADPCMCodec.h"


typedef unsigned long  DWORD;

int main()
{

FILE*  testinfile;
FILE*  testzonefile;
FILE*  testoutfile;
char *infilename;
char *zonename;
char  *outfilename;

infilename="sound.wav";
zonename="zonefile";
outfilename="outsud.wav";

testinfile = fopen(infilename,"rb");
testzonefile  = fopen(zonename,"wb");
testoutfile = fopen(outfilename,"wb");


adpcm_state  encod_state;
adpcm_state  decod_state;

short *inBuff;
short *lpinBuff;
unsigned char *zoneBuff;
unsigned char * lpQuerryBuffer;
unsigned char * zoneinBuff;

 inBuff = (short*)malloc(sizeof(short)*40000);
 zoneBuff = (unsigned char*)malloc(sizeof(char)*100);
 zoneinBuff = (unsigned char*)malloc(sizeof(char)*100);
lpQuerryBuffer = (unsigned char*)malloc(sizeof(char)*100);
 lpinBuff = (short*)malloc(sizeof(short)*200);
 
fread(inBuff,sizeof(short),(77474/2),testinfile);

unsigned int outnum;
unsigned int sampnum = 160;

 int i;
for(i=0;i<=77474/(sampnum*2);i++){

   memcpy(lpinBuff,(inBuff+i*sampnum),sampnum*2);
   outnum=EncoderFrame(lpinBuff, zoneBuff, sampnum, &encod_state);

  //  *(DWORD*)lpQuerryBuffer = outnum;
 //   fwrite( &outnum,sizeof(DWORD),1,testzonefile);
 //  fwrite(&encod_state,sizeof(encod_state),1,testzonefile);	
 //  fwrite(zoneBuff,sizeof(char),outnum,testzonefile);

   *(DWORD*)lpQuerryBuffer = outnum+ sizeof(adpcm_state);
	//write adpcm_state
	memcpy(lpQuerryBuffer+sizeof(DWORD), &encod_state, sizeof(encod_state));//sizeof(adpcm_state));
    //	memcpy(lpQuerryBuffer, zoneBuff, 10);//sizeof(adpcm_state));
	//Write audio data
   memcpy(lpQuerryBuffer+ sizeof(DWORD)+sizeof(adpcm_state), zoneBuff, outnum);
	   
   fwrite(lpQuerryBuffer,sizeof(char),outnum+sizeof(adpcm_state)+sizeof(DWORD),testzonefile);
   //   fwrite(zoneBuff,sizeof(char),outnum,testzonefile);
    printf("%d,%d,%d,%d,%d, %d\n",i,lpinBuff[10],zoneBuff[10],outnum,encod_state.index,encod_state.valprev);
}

    fclose(testzonefile ); 
   testzonefile= fopen(zonename,"rb");
  
     int samplen = outnum+sizeof(DWORD)+sizeof(encod_state);
  
    zoneBuff = (unsigned char *)malloc(samplen*i);
    fread(zoneBuff,sizeof(char),i*samplen, testzonefile);
 int y=i;
 sampnum = outnum;

 for(i=1;i<=y;i++){
    
  memcpy(zoneinBuff,(zoneBuff+(i-1)* samplen+ sizeof(DWORD)+sizeof(decod_state) ),sampnum);  //拷贝数据
 //    memcpy(zoneinBuff,zoneBuff+i* samplen,samplen); 

  memcpy (&decod_state,(zoneBuff+i*samplen+ sizeof(DWORD)),sizeof(decod_state));               //拷贝结构体
  outnum= DecoderFrame(zoneinBuff, lpinBuff, samplen,&decod_state);   //, &decod_state);
    
	fwrite(lpinBuff,sizeof(short),outnum,testoutfile);

 }

  printf("Decoder out samp is %d\n",outnum);

fclose(testinfile);
fclose(testzonefile);
fclose(testoutfile);
free(zoneinBuff);
free(lpinBuff);
free(inBuff);
free(zoneBuff);
free(lpQuerryBuffer); 
 return 0;

 	}