www.pudn.com > g729AnnexA.rar > CODER.C

/* ITU-T G.729 Software Package Release 2 (November 2006) */ 
/* 
   ITU-T G.729A Speech Coder    ANSI-C Source Code 
   Version 1.1    Last modified: September 1996 
 
   Copyright (c) 1996, 
   AT&T, France Telecom, NTT, Universite de Sherbrooke 
   All rights reserved. 
*/ 
 
/*-------------------------------------------------------------------* 
 * Main program of the ITU-T G.729A  8 kbit/s encoder.               * 
 *                                                                   * 
 *    Usage : coder speech_file  bitstream_file                      * 
 *-------------------------------------------------------------------*/ 
 
#include  
#include  
 
#include "typedef.h" 
#include "basic_op.h" 
#include "ld8a.h" 
 
int main(int argc, char *argv[] ) 
{ 
  FILE *f_speech;               /* File of speech data                   */ 
  FILE *f_serial;               /* File of serial bits for transmission  */ 
 
  extern Word16 *new_speech;     /* Pointer to new speech data            */ 
 
  Word16 prm[PRM_SIZE];          /* Analysis parameters.                  */ 
  Word16 serial[SERIAL_SIZE];    /* Output bitstream buffer               */ 
 
  Word16 frame;                  /* frame counter */ 
 
 
  printf("\n"); 
  printf("***********    ITU G.729A 8 KBIT/S SPEECH CODER    ***********\n"); 
  printf("\n"); 
  printf("------------------- Fixed point C simulation -----------------\n"); 
  printf("\n"); 
  printf("------------ Version 1.1 (Release 2, November 2006) --------\n"); 
  printf("\n"); 
 
 
/*--------------------------------------------------------------------------* 
 * Open speech file and result file (output serial bit stream)              * 
 *--------------------------------------------------------------------------*/ 
 
  if ( argc != 3 ) 
    { 
       printf("Usage : coder speech_file  bitstream_file\n"); 
       printf("\n"); 
       printf("Format for speech_file:\n"); 
       printf("  Speech is read from a binary file of 16 bits PCM data.\n"); 
       printf("\n"); 
       printf("Format for bitstream_file:\n"); 
       printf("  One (2-byte) synchronization word \n"); 
       printf("  One (2-byte) size word,\n"); 
       printf("  80 words (2-byte) containing 80 bits.\n"); 
       printf("\n"); 
       exit(1); 
    } 
 
  if ( (f_speech = fopen(argv[1], "rb")) == NULL) { 
     printf("%s - Error opening file  %s !!\n", argv[0], argv[1]); 
     exit(0); 
  } 
  printf(" Input speech file    :  %s\n", argv[1]); 
 
  if ( (f_serial = fopen(argv[2], "wb")) == NULL) { 
     printf("%s - Error opening file  %s !!\n", argv[0], argv[2]); 
     exit(0); 
  } 
  printf(" Output bitstream file:  %s\n", argv[2]); 
 
/*--------------------------------------------------------------------------* 
 * Initialization of the coder.                                             * 
 *--------------------------------------------------------------------------*/ 
 
  Init_Pre_Process(); 
  Init_Coder_ld8a(); 
  Set_zero(prm, PRM_SIZE); 
 
  /* Loop for each "L_FRAME" speech data. */ 
 
  frame =0; 
  while( fread(new_speech, sizeof(Word16), L_FRAME, f_speech) == L_FRAME) 
  { 
    printf("Frame =%d\r", frame++); 
 
    Pre_Process(new_speech, L_FRAME); 
 
    Coder_ld8a(prm); 
 
    prm2bits_ld8k( prm, serial); 
 
    fwrite(serial, sizeof(Word16), SERIAL_SIZE, f_serial); 
  } 
  return (0); 
}