void blockEncoder(
bool init,
bool color_mode,
int sampling,
unsigned short imagewidth,
unsigned short imageheight,
unsigned char Standard_Luminance_Quantization_Table[64] ,
unsigned char Standard_Chromiance_Quantization_Table0[64] ,
unsigned char Standard_Chromiance_Quantization_Table1[64] ,
const unsigned char buffer[MAX_ROWBUF_WIDTH*3*8],
pixel_queue_t& queue,bool flush
)
{
yuv_t yQ[64];
yuv_t uQ[64];
yuv_t vQ[64];
freq_t yfrqQ[64];
freq_t ufrqQ[64];
freq_t vfrqQ[64];
freq_t yquantQ[64];
freq_t uquantQ[64];
freq_t vquantQ[64];
bits_t yBitQ[MAX_HUFF];
bits_t uBitQ[MAX_HUFF];
bits_t vBitQ[MAX_HUFF];
bits_t emptyBitQ[1];
bitlen_t yBitLenQ[MAX_HUFF];
bitlen_t uBitLenQ[MAX_HUFF];
bitlen_t vBitLenQ[MAX_HUFF];
bitlen_t emptyBitLenQ[1];
unsigned char yLen, uLen, vLen, emptyLen;
emptyLen=1;
bool ydcten, udcten, vdcten, yqen, vqen, uqen, yhen, uhen, vhen;
colorBuffer( color_mode, sampling, imagewidth, buffer, yQ, uQ, vQ, ydcten, udcten, vdcten);
dct(ydcten, yQ,yfrqQ, yqen);
dct(udcten, uQ,ufrqQ, vqen);
dct(vdcten, vQ,vfrqQ, uqen);
quant_y(yqen, Standard_Luminance_Quantization_Table, yfrqQ, yquantQ , yhen);
quant_u(vqen, Standard_Chromiance_Quantization_Table0, ufrqQ, uquantQ, uhen);
quant_v(uqen, Standard_Chromiance_Quantization_Table1, vfrqQ, vquantQ, vhen);
huffman_Y (yhen, yquantQ, yBitQ, yBitLenQ, yLen);
huffman_UV(uhen, uquantQ, uBitQ, uBitLenQ,U_DATA,uLen);
huffman_UV(vhen, vquantQ, vBitQ, vBitLenQ,V_DATA,vLen);
bitWriter(yBitQ, yBitLenQ,yLen,false, queue);
bitWriter(uBitQ, uBitLenQ,uLen,false, queue);
bitWriter(vBitQ, vBitLenQ,vLen,false, queue);
bitWriter(emptyBitQ, emptyBitLenQ,emptyLen,false, queue);
}
void *analyzer()
{
clock_t t1, t2;
//short ana_arr[540] = {0};
float act_time,msec;
unsigned char enc_speech[11];
unsigned char array1[176] = {0x00};
int b = 0, loc = 0, count_64blocks = 0;
int i = 0;
while(count != 0)
{
sem_wait(&id_analyzer);
//sem_wait(&mutx);
//if (count_64blocks == 0)
t1 = clock();
memcpy(ana_arr, buff, 1080);
sem_post(&empty);
//t1 = clock();
num_frames = (int16_t) ((rate == RATE2400) ? 1 : NF);
//for (i = 0; i < num_frames; i++)
//{
// dc_rmv(&ana_arr[i * FRAME], &hpspeech[IN_BEG + i * FRAME],
// dcdelin, dcdelout_hi, dcdelout_lo, FRAME);
// //melp_ana(&hpspeech[i * FRAME], &melp_par[i], i);
//}
dc_rmv(&ana_arr[0], &hpspeech[IN_BEG + 0],
dcdelin, dcdelout_hi, dcdelout_lo, FRAME);
melp_ana(&hpspeech[0], &melp_par[0],0);
dc_rmv(&ana_arr[FRAME], &hpspeech[IN_BEG + FRAME],
dcdelin, dcdelout_hi, dcdelout_lo, FRAME);
melp_ana(&hpspeech[FRAME], &melp_par[1], 1);
dc_rmv(&ana_arr[2 * FRAME], &hpspeech[IN_BEG + 2 * FRAME],
dcdelin, dcdelout_hi, dcdelout_lo, FRAME);
melp_ana(&hpspeech[2 * FRAME], &melp_par[2], 2);
/*sem_post(&start_melp_1ana);
sem_post(&start_melp_2ana);
sem_post(&start_melp_3ana);
sem_wait(&melp_1ana);
sem_wait(&melp_2ana);
sem_wait(&melp_3ana);*/
sc_ana(melp_par);
/* ======== Quantization ======== */
lpc[0] = ONE_Q12;
lsf_vq(melp_par);
pitch_vq(melp_par);
gain_vq(melp_par);
quant_u(&melp_par[0].jitter, &(quant_par.jit_index[0]), 0,
MAX_JITTER_Q15, 2, ONE_Q15, 1, 7);
quant_u(&melp_par[1].jitter, &(quant_par.jit_index[1]), 0,
MAX_JITTER_Q15, 2, ONE_Q15, 1, 7);
quant_u(&melp_par[2].jitter, &(quant_par.jit_index[2]), 0,
MAX_JITTER_Q15, 2, ONE_Q15, 1, 7);
//for (i = 0; i < NF; i++)
// quant_u(&melp_par[i].jitter, &(quant_par.jit_index[i]), 0,
// MAX_JITTER_Q15, 2, ONE_Q15, 1, 7);
/* Quantize bandpass voicing */
quant_bp(melp_par, num_frames);
quant_jitter(melp_par);
/* Calculate Fourier coeffs of residual from quantized LPC */
//for (i = 0; i < num_frames; i++)
//{
// /* The following fill() action is believed to be unnecessary. */
// //fill(melp_par[i].fs_mag, ONE_Q13, NUM_HARM);
//
// if (!melp_par[i].uv_flag)
// {
// lpc_lsp2pred(melp_par[i].lsf, &(lpc[1]), LPC_ORD);
// zerflt(&hpspeech
// [(i * FRAME + FRAME_END - (LPC_FRAME / 2))], lpc,
// sigbuf, LPC_ORD, LPC_FRAME);
//
// window(sigbuf, win_cof, sigbuf, LPC_FRAME);
//
// find_harm(sigbuf, melp_par[i].fs_mag, melp_par[i].pitch, NUM_HARM,
// LPC_FRAME);
// }
//}
i = 0;
if (!melp_par[i].uv_flag)
{
lpc_lsp2pred(melp_par[i].lsf, &(lpc[1]), LPC_ORD);
zerflt(&hpspeech
[(i * FRAME + FRAME_END - (LPC_FRAME / 2))], lpc,
sigbuf, LPC_ORD, LPC_FRAME);
window(sigbuf, win_cof, sigbuf, LPC_FRAME);
find_harm(sigbuf, melp_par[i].fs_mag, melp_par[i].pitch, NUM_HARM,
LPC_FRAME);
}
i = 1;
if (!melp_par[i].uv_flag)
{
lpc_lsp2pred(melp_par[i].lsf, &(lpc[1]), LPC_ORD);
zerflt(&hpspeech
[(i * FRAME + FRAME_END - (LPC_FRAME / 2))], lpc,
sigbuf, LPC_ORD, LPC_FRAME);
window(sigbuf, win_cof, sigbuf, LPC_FRAME);
find_harm(sigbuf, melp_par[i].fs_mag, melp_par[i].pitch, NUM_HARM,
LPC_FRAME);
}
i = 2;
if (!melp_par[i].uv_flag)
{
lpc_lsp2pred(melp_par[i].lsf, &(lpc[1]), LPC_ORD);
zerflt(&hpspeech
[(i * FRAME + FRAME_END - (LPC_FRAME / 2))], lpc,
sigbuf, LPC_ORD, LPC_FRAME);
window(sigbuf, win_cof, sigbuf, LPC_FRAME);
find_harm(sigbuf, melp_par[i].fs_mag, melp_par[i].pitch, NUM_HARM,
LPC_FRAME);
}
quant_fsmag(melp_par);
//for (i = 0; i < num_frames; i++)
// quant_par.uv_flag[i] = melp_par[i].uv_flag;
quant_par.uv_flag[0] = melp_par[0].uv_flag;
quant_par.uv_flag[1] = melp_par[1].uv_flag;
quant_par.uv_flag[2] = melp_par[2].uv_flag;
/* Write channel bitstream */
#if !SKIP_CHANNEL
low_rate_chn_write(&quant_par);
#endif
/* Update delay buffers for next block */
v_equ(hpspeech, &(hpspeech[num_frames * FRAME]), IN_BEG);
memcpy(enc_speech,chbuf,11);
/*======================old content of melp thread======================*/
//melpe_a(enc_speech, buff);
//fwrite(enc_speech,sizeof(char),11,fptr);
//=======================================================================
// ather_jawad work for 2400 baudrate
//=======================================================================
for (b=0; b<11; b++)
{
array1[loc] = enc_speech[b];
loc++;
}
count_64blocks = count_64blocks + 1;
if(count_64blocks == 16)
{
loc = 0;
memcpy(array2,array1,176);
sem_post(&last);
count_64blocks = 0;
}
t2 = clock() - t1;
//printf("Time %d = %f\n\n",count_64blocks,(float)t2/CLOCKS_PER_SEC);
//sem_post(&full);
}
pthread_exit(NULL);
}
/****************************************************************************
**
** Function: pitch_vq
**
** Description: Pitch values of three frames are vector quantized
**
** Arguments:
**
** melp_param *par ---- input/output melp parameters
**
** Return value: None
**
*****************************************************************************/
void pitch_vq(struct melp_param *par)
{
register int16_t i;
static BOOLEAN prev_uv_flag = TRUE;
static int16_t prev_pitch = LOG_UV_PITCH_Q12; /* Q12 */
static int16_t prev_qpitch = LOG_UV_PITCH_Q12; /* Q12 */
const int16_t *codebook;
int16_t cnt, size, pitch_index;
int16_t temp1, temp2;
int32_t L_temp;
int16_t dcb[PITCH_VQ_CAND * NF]; /* Q12 */
int16_t target[NF], deltp[NF]; /* Q12 */
int16_t deltw[NF]; /* Q0 */
int16_t weights[NF]; /* Q0 */
int16_t indexlist[PITCH_VQ_CAND];
int32_t distlist[PITCH_VQ_CAND]; /* Q25 */
/* ---- Compute pitch in log domain ---- */
for (i = 0; i < NF; i++)
target[i] = log10_fxp(par[i].pitch, 7); /* Q12 */
cnt = 0;
for (i = 0; i < NF; i++) {
if (par[i].uv_flag)
weights[i] = 0; /* Q0 */
else {
weights[i] = 1;
cnt++;
}
}
/* ---- calculate delta ---- */
for (i = 0; i < NF; i++) {
if (prev_uv_flag || par[i].uv_flag) {
deltp[i] = 0;
deltw[i] = 0;
} else {
deltp[i] = melpe_sub(target[i], prev_pitch);
deltw[i] = DELTA_PITCH_WEIGHT_Q0;
}
prev_pitch = target[i];
prev_uv_flag = par[i].uv_flag;
}
if (cnt == 0) {
for (i = 0; i < NF; i++)
par[i].pitch = UV_PITCH;
prev_qpitch = LOG_UV_PITCH_Q12;
} else if (cnt == 1) {
for (i = 0; i < NF; i++) {
if (!par[i].uv_flag) {
quant_u(&target[i], &(quant_par.pitch_index),
PIT_QLO_Q12, PIT_QUP_Q12, PIT_QLEV_M1,
PIT_QLEV_M1_Q8, TRUE, 7);
quant_u_dec(quant_par.pitch_index,
&par[i].pitch, PIT_QLO_Q12,
PIT_QUP_Q12, PIT_QLEV_M1_Q8, 7);
} else
par[i].pitch = LOG_UV_PITCH_Q12;
}
/* At this point par[].pitch temporarily holds the pitches in the */
/* log domain with Q12. */
prev_qpitch = par[NF - 1].pitch; /* Q12 */
for (i = 0; i < NF; i++)
par[i].pitch = pow10_fxp(par[i].pitch, 7); /* Q7 */
} else if (cnt > 1) { /* cnt == 2, 3, ......, (NF - 1) */
/* ----- set pointer ----- */
if (cnt == NF) { /* All NF frames are voiced. */
codebook = pitch_vq_cb_vvv;
size = PITCH_VQ_LEVEL_VVV;
} else {
codebook = pitch_vq_cb_uvv;
size = PITCH_VQ_LEVEL_UVV;
} /* This part changed !!! (12/13/99) */
/* ---- select candidate using static pitch distortion ---- */
wvq1(target, weights, codebook, NF, size, indexlist, distlist,
PITCH_VQ_CAND);
/* -- select index using static and delta pitch distortion -- */
temp1 = 0;
for (i = 0; i < PITCH_VQ_CAND; i++) {
L_temp = melpe_L_mult(indexlist[i], NF);
L_temp = melpe_L_shr(L_temp, 1);
temp2 = melpe_extract_l(L_temp);
/* Now temp1 is (i*NF) and temp2 is (indexlist[i]*NF). */
dcb[temp1] = melpe_sub(codebook[temp2], prev_qpitch); /* Q12 */
v_equ(&dcb[temp1 + 1], &codebook[temp2 + 1], NF - 1);
v_sub(&dcb[temp1 + 1], &codebook[temp2], NF - 1);
temp1 = melpe_add(temp1, NF);
}
pitch_index = wvq2(deltp, deltw, dcb, NF, indexlist, distlist,
PITCH_VQ_CAND);
if (par[NF - 1].uv_flag)
prev_qpitch = LOG_UV_PITCH_Q12;
else
prev_qpitch = codebook[pitch_index * NF + NF - 1]; /* Q12 */
for (i = 0; i < NF; i++) {
if (par[i].uv_flag)
par[i].pitch = UV_PITCH_Q7;
else
par[i].pitch =
pow10_fxp(codebook[pitch_index * NF + i],
7);
}
quant_par.pitch_index = pitch_index;
}
}
void melp_ana(float sp_in[],struct melp_param *par)
{
int i;
int begin;
float sub_pitch;
float temp,pcorr,bpthresh;
float r[LPC_ORD+1],refc[LPC_ORD+1],lpc[LPC_ORD+1];
float weights[LPC_ORD];
/* Remove DC from input speech */
dc_rmv(sp_in,&speech[IN_BEG],dcdel,FRAME);
/* Copy input speech to pitch window and lowpass filter */
v_equ(&sigbuf[LPF_ORD],&speech[PITCH_BEG],PITCH_FR);
v_equ(sigbuf,lpfsp_del,LPF_ORD);
polflt(&sigbuf[LPF_ORD],lpf_den,&sigbuf[LPF_ORD],LPF_ORD,PITCH_FR);
v_equ(lpfsp_del,&sigbuf[FRAME],LPF_ORD);
zerflt(&sigbuf[LPF_ORD],lpf_num,&sigbuf[LPF_ORD],LPF_ORD,PITCH_FR);
/* Perform global pitch search at frame end on lowpass speech signal */
/* Note: avoid short pitches due to formant tracking */
fpitch[END] = find_pitch(&sigbuf[LPF_ORD+(PITCH_FR/2)],&temp,
(2*PITCHMIN),PITCHMAX,PITCHMAX);
/* Perform bandpass voicing analysis for end of frame */
bpvc_ana(&speech[FRAME_END], fpitch, &par->bpvc[0], &sub_pitch);
/* Force jitter if lowest band voicing strength is weak */
if (par->bpvc[0] < VJIT)
par->jitter = MAX_JITTER;
else
par->jitter = 0.0;
/* Calculate LPC for end of frame */
window(&speech[(FRAME_END-(LPC_FRAME/2))],win_cof,sigbuf,LPC_FRAME);
autocorr(sigbuf,r,LPC_ORD,LPC_FRAME);
lpc[0] = 1.0;
lpc_schur(r,lpc,refc,LPC_ORD);
lpc_bw_expand(lpc,lpc,BWFACT,LPC_ORD);
/* Calculate LPC residual */
zerflt(&speech[PITCH_BEG],lpc,&sigbuf[LPF_ORD],LPC_ORD,PITCH_FR);
/* Check peakiness of residual signal */
begin = (LPF_ORD+(PITCHMAX/2));
temp = peakiness(&sigbuf[begin],PITCHMAX);
/* Peakiness: force lowest band to be voiced */
if (temp > PEAK_THRESH) {
par->bpvc[0] = 1.0;
}
/* Extreme peakiness: force second and third bands to be voiced */
if (temp > PEAK_THR2) {
par->bpvc[1] = 1.0;
par->bpvc[2] = 1.0;
}
/* Calculate overall frame pitch using lowpass filtered residual */
par->pitch = pitch_ana(&speech[FRAME_END], &sigbuf[LPF_ORD+PITCHMAX],
sub_pitch,pitch_avg,&pcorr);
bpthresh = BPTHRESH;
/* Calculate gain of input speech for each gain subframe */
for (i = 0; i < NUM_GAINFR; i++) {
if (par->bpvc[0] > bpthresh) {
/* voiced mode: pitch synchronous window length */
temp = sub_pitch;
par->gain[i] = gain_ana(&speech[FRAME_BEG+(i+1)*GAINFR],
temp,MIN_GAINFR,2*PITCHMAX);
}
else {
temp = 1.33*GAINFR - 0.5;
par->gain[i] = gain_ana(&speech[FRAME_BEG+(i+1)*GAINFR],
temp,0,2*PITCHMAX);
}
}
/* Update average pitch value */
if (par->gain[NUM_GAINFR-1] > SILENCE_DB)
temp = pcorr;
else
temp = 0.0;
pitch_avg = p_avg_update(par->pitch, temp, VMIN);
/* Calculate Line Spectral Frequencies */
lpc_pred2lsp(lpc,par->lsf,LPC_ORD);
/* Force minimum LSF bandwidth (separation) */
lpc_clamp(par->lsf,BWMIN,LPC_ORD);
/* Quantize MELP parameters to 2400 bps and generate bitstream */
/* Quantize LSF's with MSVQ */
vq_lspw(weights, &par->lsf[1], lpc, LPC_ORD);
msvq_enc(&par->lsf[1], weights, &par->lsf[1], vq_par);
par->msvq_index = vq_par.indices;
/* Force minimum LSF bandwidth (separation) */
lpc_clamp(par->lsf,BWMIN,LPC_ORD);
/* Quantize logarithmic pitch period */
/* Reserve all zero code for completely unvoiced */
par->pitch = log10(par->pitch);
quant_u(&par->pitch,&par->pitch_index,PIT_QLO,PIT_QUP,PIT_QLEV);
par->pitch = pow(10.0,par->pitch);
/* Quantize gain terms with uniform log quantizer */
q_gain(par->gain, par->gain_index,GN_QLO,GN_QUP,GN_QLEV);
/* Quantize jitter and bandpass voicing */
quant_u(&par->jitter,&par->jit_index,0.0,MAX_JITTER,2);
par->uv_flag = q_bpvc(&par->bpvc[0],&par->bpvc_index,bpthresh,
NUM_BANDS);
/* Calculate Fourier coefficients of residual signal from quantized LPC */
fill(par->fs_mag,1.0,NUM_HARM);
if (par->bpvc[0] > bpthresh) {
lpc_lsp2pred(par->lsf,lpc,LPC_ORD);
zerflt(&speech[(FRAME_END-(LPC_FRAME/2))],lpc,sigbuf,
LPC_ORD,LPC_FRAME);
window(sigbuf,win_cof,sigbuf,LPC_FRAME);
find_harm(sigbuf, par->fs_mag, par->pitch, NUM_HARM, LPC_FRAME);
}
/* quantize Fourier coefficients */
/* pre-weight vector, then use Euclidean distance */
window(&par->fs_mag[0],w_fs,&par->fs_mag[0],NUM_HARM);
fsvq_enc(&par->fs_mag[0], &par->fs_mag[0], fs_vq_par);
/* Set MELP indeces to point to same array */
par->fsvq_index = fs_vq_par.indices;
/* Update MSVQ information */
par->msvq_stages = vq_par.num_stages;
par->msvq_bits = vq_par.num_bits;
/* Write channel bitstream */
melp_chn_write(par);
/* Update delay buffers for next frame */
v_equ(&speech[0],&speech[FRAME],IN_BEG);
fpitch[BEGIN] = fpitch[END];
}
