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#include "speex.h"
#include <stdio.h>
#include <stdlib.h>
#define FRAME_SIZE 320
#include <math.h>
int main(int argc, char **argv)
{
char *inFile, *outFile, *bitsFile;
FILE *fin, *fout, *fbits=NULL;
short in[FRAME_SIZE];
float input[FRAME_SIZE], bak[FRAME_SIZE], bak2[FRAME_SIZE];
char cbits[200];
int nbBits;
int i;
EncState st;
DecState dec;
FrameBits bits;
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=0;
encoder_init(&st, &mp_wb_mode);
decoder_init(&dec, &mp_wb_mode);
if (argc != 4 && argc != 3)
{
fprintf (stderr, "Usage: encode [in file] [out file] [bits file]\nargc = %d", argc);
exit(1);
}
inFile = argv[1];
fin = fopen(inFile, "r");
outFile = argv[2];
fout = fopen(outFile, "w");
if (argc==4)
{
bitsFile = argv[3];
fbits = fopen(bitsFile, "w");
}
frame_bits_init(&bits);
while (!feof(fin))
{
fread(in, sizeof(short), FRAME_SIZE, fin);
for (i=0;i<FRAME_SIZE;i++)
bak[i]=input[i]=in[i];
frame_bits_reset(&bits);
encode(&st, input, &bits);
nbBits = frame_bits_write(&bits, cbits, 200);
printf ("Encoding frame in %d bits\n", nbBits*8);
if (argc==4)
fwrite(cbits, 1, nbBits, fbits);
{
float enoise=0, esig=0, snr;
for (i=0;i<FRAME_SIZE;i++)
{
enoise+=(bak2[i]-input[i])*(bak2[i]-input[i]);
esig += bak2[i]*bak2[i];
}
snr = 10*log10((esig+1)/(enoise+1));
printf ("real SNR = %f\n", snr);
}
frame_bits_rewind(&bits);
decode(&dec, &bits, input);
/* Save the bits here */
frame_bits_reset(&bits);
for (i=0;i<FRAME_SIZE;i++)
in[i]=input[i];
for (i=0;i<FRAME_SIZE;i++)
bak2[i]=bak[i];
fwrite(in, sizeof(short), FRAME_SIZE, fout);
}
encoder_destroy(&st);
decoder_destroy(&dec);
return 1;
}
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