1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/tools/audio_processor_test/gen_tone/gen_tone.cpp	Wed Apr 28 08:19:09 2010 -0400
     1.3 @@ -0,0 +1,63 @@
     1.4 +#include <stdio.h>
     1.5 +#include <assert.h>
     1.6 +#include <string.h>
     1.7 +#include <sndfile.h>
     1.8 +#include <stdlib.h>
     1.9 +#include "SndfileWavUtil.h"
    1.10 +
    1.11 +// foreward declaration. This is defined in DFT.cpp
    1.12 +int DFT(int dir,int m,double *x1,double *y1);
    1.13 +
    1.14 +const int Points = 8;
    1.15 +
    1.16 +int
    1.17 +do_gen (int argc, char * argv [])
    1.18 +{
    1.19 +  int frames;
    1.20 +  int targ_freqA;
    1.21 +  int targ_freqB;
    1.22 +  char* refWavFile;
    1.23 +  char* outWavFile;
    1.24 +  FILE* outPCM;
    1.25 +  const int short_sz = sizeof(short int);
    1.26 +
    1.27 +  frames = atoi(argv[1]);
    1.28 +  targ_freqA = atoi(argv[2]);
    1.29 +  targ_freqB = atoi(argv[3]);
    1.30 +  refWavFile = argv[4];
    1.31 +  outWavFile = argv[5];
    1.32 +
    1.33 +  outPCM = fopen("output.pcm", "w");
    1.34 +
    1.35 +  printf("targ_freqA %d\ntarg_freqB %d\nframes %d\n", targ_freqA, targ_freqB, frames);
    1.36 +
    1.37 +  while(frames-- > 0){
    1.38 +
    1.39 +    double dreal[Points];
    1.40 +    double dimag[Points];
    1.41 +
    1.42 +    for(int i = 0; i < Points; i++)
    1.43 +      dreal[i] = (i == targ_freqA) ? 1000 : (i == targ_freqB) ? 1000 : 0;
    1.44 +    for(int i = 0; i < Points; i++)
    1.45 +      dimag[i] = 0.0;
    1.46 +    
    1.47 +    DFT(-1,Points,dreal,dimag);
    1.48 +
    1.49 +    for(int i = 0; i < Points; i++){
    1.50 +      short int rv = (int)dreal[i];
    1.51 +      assert(fwrite(&rv,short_sz,1,outPCM));
    1.52 +    }
    1.53 +
    1.54 +  }
    1.55 +
    1.56 +  fclose(outPCM);
    1.57 +
    1.58 +  generate_wav("output.pcm", refWavFile, outWavFile);
    1.59 +}
    1.60 +
    1.61 +int
    1.62 +main(int argc, char* argv[])
    1.63 +{
    1.64 +  do_gen(argc, argv);
    1.65 +  exit(1);
    1.66 +}