static int tdav_codec_g729ab_open(tmedia_codec_t* self)
{
tdav_codec_g729ab_t* g729a = (tdav_codec_g729ab_t*)self;
// Initialize the decoder
bad_lsf = 0;
g729a->decoder.synth = (g729a->decoder.synth_buf + M);
Init_Decod_ld8a();
Init_Post_Filter();
Init_Post_Process();
/* for G.729B */
Init_Dec_cng();
// Initialize the encoder
Init_Pre_Process();
Init_Coder_ld8a();
Set_zero(g729a->encoder.prm, PRM_SIZE + 1);
/* for G.729B */
Init_Cod_cng();
return 0;
}
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+1]; /* Analysis parameters + frame type */
Word16 serial[SERIAL_SIZE]; /* Output bitstream buffer */
Word16 frame; /* frame counter */
Word32 count_frame;
/* For G.729B */
Word16 nb_words;
Word16 vad_enable;
printf("\n");
printf("*********** ITU G.729A 8 KBIT/S SPEECH CODER ***********\n");
printf(" (WITH ANNEX B) \n");
printf("\n");
printf("------------------- Fixed point C simulation -----------------\n");
printf("\n");
printf("------------ Version 1.5 (Release 2, November 2006) ----------\n");
printf("\n");
/*--------------------------------------------------------------------------*
* Open speech file and result file (output serial bit stream) *
*--------------------------------------------------------------------------*/
if ( argc != 4 ){
printf("Usage :%s speech_file bitstream_file VAD_flag\n", argv[0]);
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");
printf("VAD flag:\n");
printf(" 0 to disable the VAD\n");
printf(" 1 to enable the VAD\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]);
vad_enable = (Word16)atoi(argv[3]);
if (vad_enable == 1)
printf(" VAD enabled\n");
else
printf(" VAD disabled\n");
#ifndef OCTET_TX_MODE
printf(" OCTET TRANSMISSION MODE is disabled\n");
#endif
/*--------------------------------------------------------------------------*
* Initialization of the coder. *
*--------------------------------------------------------------------------*/
Init_Pre_Process();
Init_Coder_ld8a();
Set_zero(prm, PRM_SIZE+1);
/* for G.729B */
Init_Cod_cng();
/* Loop for each "L_FRAME" speech data. */
frame = 0;
count_frame = 0L;
while( fread(new_speech, sizeof(Word16), L_FRAME, f_speech) == L_FRAME)
{
printf("Frame = %ld\r", count_frame++);
if (frame == 32767) frame = 256;
else frame++;
Pre_Process(new_speech, L_FRAME);
Coder_ld8a(prm, frame, vad_enable);
prm2bits_ld8k( prm, serial);
nb_words = serial[1] + (Word16)2;
fwrite(serial, sizeof(Word16), nb_words, f_serial);
}
printf("%ld frames processed\n", count_frame);
return (0);
}
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+1]; /* Analysis parameters. */
Word16 serial[SERIAL_SIZE]; /* Output bitstream buffer */
Word16 syn[L_FRAME]; /* Buffer for synthesis speech */
Word16 i, frame; /* frame counter */
Word32 count_frame;
/* For G.729B */
Word16 nb_words;
Word16 vad_enable;
printf("\n");
printf("*********** ITU G.729 8 KBIT/S SPEECH CODER ***********\n");
printf(" (WITH ANNEX B) \n");
printf("\n");
printf("------------------- Fixed point C simulation -----------------\n");
printf("\n");
printf("------------------ Version 1.4 ----------------\n");
printf("\n");
/*--------------------------------------------------------------------------*
* Open speech file and result file (output serial bit stream) *
*--------------------------------------------------------------------------*/
if ( argc != 4 )
{
printf("Usage :%s speech_file bitstream_file VAD_flag\n",argv[0]);
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");
printf("VAD flag:\n");
printf(" 0 to disable the VAD\n");
printf(" 1 to enable the VAD\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]);
vad_enable = (Word16)atoi(argv[3]);
if (vad_enable == 1)
printf(" VAD enabled\n");
else
printf(" VAD disabled\n");
#ifndef OCTET_TX_MODE
printf(" OCTET TRANSMISSION MODE is disabled\n");
#endif
/*--------------------------------------------------------------------------*
* Initialization of the coder. *
*--------------------------------------------------------------------------*/
Init_Pre_Process();
Init_Coder_ld8k();
for(i=0; i<PRM_SIZE; i++) prm[i] = (Word16)0;
/* for G.729B */
Init_Cod_cng();
/* To force the input and output to be time-aligned the variable SYNC
has to be defined. Note: the test vectors were generated with this option
disabled
*/
#ifdef SYNC
/* Read L_NEXT first speech data */
fread(&new_speech[-L_NEXT], sizeof(Word16), L_NEXT, f_speech);
#ifdef HARDW
/* set 3 LSB's to zero */
for(i=0; i < L_NEXT; i++)
new_speech[-L_NEXT+i] = new_speech[-L_NEXT+i] & 0xFFF8;
#endif
Pre_Process(&new_speech[-L_NEXT], L_NEXT);
#endif
/* Loop for each "L_FRAME" speech data. */
frame =0;
count_frame = 0L;
while( fread(new_speech, sizeof(Word16), L_FRAME, f_speech) == L_FRAME)
{
printf("Frame = %ld\r", count_frame++);
#ifdef HARDW
/* set 3 LSB's to zero */
for(i=0; i < L_FRAME; i++) new_speech[i] = new_speech[i] & 0xFFF8;
#endif
if (frame == 32767) frame = 256;
else frame++;
Pre_Process(new_speech, L_FRAME);
Coder_ld8k(prm, syn, frame, vad_enable);
prm2bits_ld8k( prm, serial);
nb_words = add((Word16)serial[1], 2);
fwrite(serial, sizeof(Word16), nb_words, f_serial);
}
printf("%ld frames processed\n", count_frame);
return (0);
}
void Init_Coder_ld8g(Word16 dtx_enable)
{
Word16 i;
/*----------------------------------------------------------------------*
* Initialize pointers to speech vector. *
* *
* *
* |--------------------|-------------|-------------|------------| *
* previous speech sf1 sf2 L_NEXT *
* *
* <---------------- Total speech vector (L_TOTAL) -----------> *
* <---------------- LPC analysis window (L_WINDOW) -----------> *
* | <-- present frame (L_FRAME) --> *
* old_speech | <-- new speech (L_FRAME) --> *
* p_window | | *
* speech | *
* new_speech *
*-----------------------------------------------------------------------*/
new_speech = old_speech + L_TOTAL - L_FRAME; /* New speech */
speech = new_speech - L_NEXT; /* Present frame */
p_window = old_speech + L_TOTAL - L_WINDOW; /* For LPC window */
/* Initialize static pointers */
wsp = old_wsp + PIT_MAX;
exc = old_exc + PIT_MAX + L_INTERPOL;
zero = ai_zero + M_BWDP1;
error = mem_err + M_BWD;
/* Static vectors to zero */
Set_zero(old_speech, L_TOTAL);
Set_zero(old_exc, PIT_MAX+L_INTERPOL);
Set_zero(old_wsp, PIT_MAX);
Set_zero(mem_syn, M_BWD);
Set_zero(mem_w, M_BWD);
Set_zero(mem_w0, M_BWD);
Set_zero(mem_err, M_BWD);
Set_zero(zero, L_SUBFR);
sharp = SHARPMIN;
/* Initialize lsp_old_q[] */
Copy(lsp_old, lsp_old_q, M);
Lsp_encw_resete(freq_prev);
/* to tame the coder */
Init_exc_err(); /* G.729 maintenance */
/* before : for(i=0; i<4; i++) L_exc_err[i] = 0x00004000L; /* Q14 */
/* for the backward analysis */
Set_zero(synth, L_ANA_BWD); /*Q14 */
synth_ptr = synth + MEM_SYN_BWD;
prev_lp_mode = 0;
bwd_dominant = 0; /* See file bwfw.c */
C_int = 4506; /* Filter interpolation parameter */
glob_stat = 10000; /* Mesure of global stationnarity Q8 */
stat_bwd = 0; /* Nbre of consecutive backward frames */
val_stat_bwd = 0; /* Value associated with stat_bwd */
for(i=0; i<M_BWDP1; i++) rexp[i] = 0L;
A_t_bwd_mem[0] = 4096;
for (i=1; i<M_BWDP1; i++) A_t_bwd_mem[i] = 0;
Set_zero(prev_filter, M_BWDP1);
prev_filter[0] = 4096;
Set_zero(old_A_bwd, M_BWDP1);
old_A_bwd[0]=4096;
Set_zero(old_rc_bwd, 2);
Set_zero(old_A_fwd, MP1);
old_A_fwd[0]=4096;
Set_zero(old_rc_fwd, 2);
/* For G.729B */
/* Initialize VAD/DTX parameters */
if(dtx_enable == 1) {
pastVad = 1;
ppastVad = 1;
seed = INIT_SEED;
vad_init();
Init_lsfq_noise();
Init_Cod_cng(); /* G.729 maintenance */
}
return;
}
