#ifdef HAVE_CONFIG_H#include "config.h"#endif#include <speex/speex.h>#include <stdio.h>#include <stdlib.h>#include <speex/speex_callbacks.h>#ifdef FIXED_DEBUGextern long long spx_mips;#endif#define FRAME_SIZE 160#include <math.h>int main(int argc, char **argv){   char *inFile, *outFile, *bitsFile;   FILE *fin, *fout, *fbits=NULL;   short in_short[FRAME_SIZE];   short out_short[FRAME_SIZE];   float sigpow,errpow,snr, seg_snr=0;   int snr_frames = 0;   char cbits[200];   int nbBits;   int i;   void *st;   void *dec;   SpeexBits bits;   int tmp;   int bitCount=0;   int skip_group_delay;   SpeexCallback callback;   sigpow = 0;   errpow = 0;   st = speex_encoder_init(&speex_nb_mode);   dec = speex_decoder_init(&speex_nb_mode);   callback.callback_id = SPEEX_INBAND_CHAR;   callback.func = speex_std_char_handler;   callback.data = stderr;   speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);   callback.callback_id = SPEEX_INBAND_MODE_REQUEST;   callback.func = speex_std_mode_request_handler;   callback.data = st;   speex_decoder_ctl(dec, SPEEX_SET_HANDLER, &callback);   tmp=0;   speex_decoder_ctl(dec, SPEEX_SET_ENH, &tmp);   tmp=0;   speex_encoder_ctl(st, SPEEX_SET_VBR, &tmp);   tmp=8;   speex_encoder_ctl(st, SPEEX_SET_QUALITY, &tmp);   tmp=1;   speex_encoder_ctl(st, SPEEX_SET_COMPLEXITY, &tmp);   speex_mode_query(&speex_nb_mode, SPEEX_MODE_FRAME_SIZE, &tmp);   fprintf (stderr, "frame size: %d\n", tmp);   skip_group_delay = tmp / 2;   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");   }   speex_bits_init(&bits);   while (!feof(fin))   {      fread(in_short, sizeof(short), FRAME_SIZE, fin);      if (feof(fin))         break;      speex_bits_reset(&bits);      speex_encode_int(st, in_short, &bits);      nbBits = speex_bits_write(&bits, cbits, 200);      bitCount+=bits.nbBits;      if (argc==4)         fwrite(cbits, 1, nbBits, fbits);      speex_bits_rewind(&bits);      speex_decode_int(dec, &bits, out_short);      speex_bits_reset(&bits);      fwrite(&out_short[skip_group_delay], sizeof(short), FRAME_SIZE-skip_group_delay, fout);      skip_group_delay = 0;   }   fprintf (stderr, "Total encoded size: %d bits\n", bitCount);   speex_encoder_destroy(st);   speex_decoder_destroy(dec);   speex_bits_destroy(&bits);   rewind(fin);   rewind(fout);   while ( FRAME_SIZE == fread(in_short, sizeof(short), FRAME_SIZE, fin)            &&           FRAME_SIZE ==  fread(out_short, sizeof(short), FRAME_SIZE,fout) )   {	float s=0, e=0;        for (i=0;i<FRAME_SIZE;++i) {            s += (float)in_short[i] * in_short[i];            e += ((float)in_short[i]-out_short[i]) * ((float)in_short[i]-out_short[i]);        }	seg_snr += 10*log10((s+160)/(e+160));	sigpow += s;	errpow += e;	snr_frames++;   }   fclose(fin);   fclose(fout);   snr = 10 * log10( sigpow / errpow );   seg_snr /= snr_frames;   fprintf(stderr,"SNR = %f\nsegmental SNR = %f\n",snr, seg_snr);#ifdef FIXED_DEBUG   printf ("Total: %f MIPS\n", (float)(1e-6*50*spx_mips/snr_frames));#endif      return 0;}