#include <stdio.h>
#include <vector>
#include <complex>
#include <cstring>
#include <cstdlib>


main()
{
  std::vector<unsigned char> data;
  FILE* f = fopen("outputfileulaw.wav", "rb");
  rewind(f);
  while(!feof(f))
  {
    unsigned char s;
    fread(&s, sizeof s, 1, f);
    data.push_back(s);
  }
  FILE* o = fopen("outputfileulaw.raw", "wb");
  int headersize = 4;
  int old_header_size = 58;
  unsigned int samples = data.size() - old_header_size;
  unsigned char* new_data = (unsigned char*)malloc(sizeof(char) * (samples + headersize));
  //little endian:
  new_data[0] = (unsigned char) samples;
  samples >>= 8;
  new_data[1] = (unsigned char) samples;
  samples >>= 8;
  new_data[2] = (unsigned char) samples;
  samples >>= 8;
  new_data[3] = (unsigned char) samples;
  memcpy(&new_data[4], &data[58], samples);
  fwrite(&new_data[0], sizeof(unsigned char), samples+headersize, o);
}