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/*
ITU-T G.729 Annex C+ - Reference C code for floating point
implementation of G.729 Annex C+
(integration of Annexes B, D and E)
Version 2.1 of October 1999
*/
/*
----------------------------------------------------------------------
COPYRIGHT NOTICE
----------------------------------------------------------------------
ITU-T G.729 Annex C+ floating point ANSI C source code
Copyright (C) 1999, AT&T, France Telecom, NTT, University of
Sherbrooke, Conexant, Ericsson. All rights reserved.
----------------------------------------------------------------------
*/
/*
File : CODERCP.C
*/
/*--------------------------------------------------------------------------------------*
* Main program of the ITU-T G.729C+ 11.8/8/6.4 kbit/s encoder.
*
* Usage : codercp speech_file bitstream_file DTX_flag [bit_rate or file_bit_rate]
*--------------------------------------------------------------------------------------*/
#include
#include
#include "typedef.h"
#include "ld8k.h"
#include "ld8cp.h"
#include "dtx.h"
#include "octet.h"
#if defined(__BORLANDC__)
extern unsigned _stklen = 48000U;
#endif
extern FLOAT *new_speech; /* Pointer to new speech data */
int prm[PRM_SIZE_E+1]; /* Analysis parameters. */
int dtx_enable;
int frame; /* frame counter for VAD*/
int rate, flag_rate;
INT16 serial[SERIAL_SIZE_E]; /* Output bitstream buffer */
int main_encode( int argc, char *argv[])
{
FILE *f_speech; /* Speech data */
FILE *f_serial; /* Serial bit stream */
FILE *f_rate;
INT32 count_frame;
INT16 sp16[L_FRAME]; /* Buffer to read 16 bits speech */
int i;
INT16 temp16;
/* For G.729B */
int nb_words;
for(i = 0; i < argc; i++){
printf("argument %d : %s\n", i, argv[i]);
}
printf("\n");
printf("*************************************************************************\n");
printf("**** ITU G.729 ANNEC C+: 6.4, 8.0, and 11.8 KBIT/S SPEECH CODER ****\n");
printf("**** INCLUDING OPTIONAL VAD/DTX/CNG (ANNEX B) ****\n");
printf("*************************************************************************\n");
printf("\n");
printf("------------------ Floating point C simulation ----------------\n");
printf("\n");
printf("----------------- Version 2.1 ----------------\n");
printf("\n");
printf(" Bit rates : 6.4, 8.0, or 11.8 kb/s \n");
printf("\n");
/*-----------------------------------------------------------------------*
* Open speech file and result file (output serial bit stream) *
*-----------------------------------------------------------------------*/
if (( argc != 4 ) && (argc != 5) ){
printf("Usage : codercp speech_file bitstream_file DTX_flag [bitrate or file_bit_rate]\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) bit-rate word \n");
printf("\n");
printf("bitrate = 0 (6.4 kb/s), 1 (8 kb/s) or 2 (11.8 kb/s) (default : 8 kb/s)\n");
printf("Format for bitrate_file:\n");
printf(" 1 16bit-Word per frame , =0 bit rate 6.4 kb/s, =1 bit rate 8 kb/s, or =2 bit rate 11.8 kb/s \n");
printf("Forward / Backward structure at 11.8 kb/s \n");
printf("DTX flag:\n");
printf(" 0 to disable the DTX\n");
printf(" 1 to enable the DTX\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]);
dtx_enable = (int)atoi(argv[3]);
if (dtx_enable == 1)
printf(" DTX enabled\n");
else
printf(" DTX disabled\n");
f_rate = NULL; /* to avoid visual warning */
rate = G729; /* to avoid visual warning */
if(argc != 4) {
if ( (f_rate = fopen(argv[4], "rb")) == NULL) {
rate = atoi(argv[4]);
if( rate == G729E) printf(" Selected Bitrate : 11.8 kb/s (G.729 Annex E)\n");
else
if( rate == G729) printf(" Selected Bitrate : 8.0 kb/s (G.729 Main Recommendation)\n");
else
if( rate == G729D) printf(" Selected Bitrate : 6.4 kb/s (G.729 Annec D)\n");
else {
printf(" error bit rate indication\n");
printf(" argv[4] = 0 for bit rate 6.4 kb/s (G.729D)\n");
printf(" argv[4] = 1 for bit rate 8 kb/s (G.729)\n");
printf(" argv[4] = 2 for bit rate 11.8 kb/s (G.729E)\n");
exit(-1);
}
flag_rate = 0;
}
else {
printf(" Selected Bitrate read in file : %s kb/s\n", argv[4]);
flag_rate = 1;
}
}
else {
flag_rate = 0;
rate = G729;
printf(" Selected Bitrate : 8.0 kb/s (G.729 Main Recommendation)\n");
}
#ifndef OCTET_TX_MODE
printf(" OCTET TRANSMISSION MODE is disabled\n");
#endif
/*-------------------------------------------------*
* Initialization of the coder. *
*-------------------------------------------------*/
init_pre_process();
init_coder_ld8c(dtx_enable); /* Initialize the coder */
/* for G.729B */
if(dtx_enable == 1) init_cod_cng();
for(i=0; i 2) ) {
printf("error bit_rate in file %s for frame %ld bit rate non avalaible\n", argv[4], count_frame);
exit(-1);
}
}
count_frame++;
printf(" Frame: %ld\r", count_frame);
if (frame == 32767) frame = 256;
else frame++;
for (i = 0; i < L_FRAME; i++) new_speech[i] = (FLOAT) sp16[i];
pre_process( new_speech, L_FRAME);
coder_ld8c(prm, frame, dtx_enable, rate);
prm2bits_ld8c(prm, serial);
nb_words = (int)serial[1] + 2;
fwrite( (void *)serial, sizeof(INT16), nb_words, f_serial);
}
printf("%ld frames processed\n", count_frame);
if(f_serial) fclose(f_serial);
if(f_speech) fclose(f_speech);
return(0);
} /* end of main() */
__declspec(dllexport) void g729cp_init_encoder(int iVad)
{
int i;
rate = G729;
frame=0;
dtx_enable = iVad;
init_pre_process();
init_coder_ld8c(dtx_enable); /* Initialize the coder */
/* for G.729B */
if(dtx_enable == 1) init_cod_cng();
for(i=0; i