/*
* Decode a 1x2 mcu
* .---.
* | 1 |
* |---|
* | 2 |
* `---'
*/
static void decode_MCU_1x2_1plane(struct jdec_private *priv)
{
// Y
process_Huffman_data_unit(priv, cY);
IDCT(&priv->component_infos[cY], priv->Y, 8);
process_Huffman_data_unit(priv, cY);
IDCT(&priv->component_infos[cY], priv->Y+64, 8);
// Cb
process_Huffman_data_unit(priv, cCb);
// Cr
process_Huffman_data_unit(priv, cCr);
}
/*
* Decode all the 3 components for 1x1
*/
static void decode_MCU_1x1_3planes(struct jdec_private *priv)
{
// Y
process_Huffman_data_unit(priv, cY);
IDCT(&priv->component_infos[cY], priv->Y, 8);
// Cb
process_Huffman_data_unit(priv, cCb);
IDCT(&priv->component_infos[cCb], priv->Cb, 8);
// Cr
process_Huffman_data_unit(priv, cCr);
IDCT(&priv->component_infos[cCr], priv->Cr, 8);
}
int idct_process (Channel * c[2]) {
#ifdef DEADLOCK
printf("Thread compute 0x%.8x has been created\n", (unsigned int)pthread_self());
#endif
uint8_t * Idct_YCbCr;
int32_t * block_YCbCr;
uint32_t flit_size = 0;
channelRead (c[0], (uint8_t *) & flit_size, sizeof (uint32_t));
VPRINTF("Flit size = %lu\r\n", flit_size);
Idct_YCbCr = (uint8_t *) malloc (flit_size * 64 * sizeof (uint8_t));
if (Idct_YCbCr == NULL) printf ("%s,%d: malloc failed\n", __FILE__, __LINE__);
block_YCbCr = (int32_t *) malloc (flit_size * 64 * sizeof (int32_t));
if (block_YCbCr == NULL) printf ("%s,%d: malloc failed\n", __FILE__, __LINE__);
while (1) {
channelRead (c[0], (unsigned char *) block_YCbCr, flit_size * 64 * sizeof (int32_t));
for (uint32_t i = 0; i < flit_size; i++) IDCT(& block_YCbCr[i * 64], & Idct_YCbCr[i * 64]);
channelWrite (c[1], (unsigned char *) Idct_YCbCr, flit_size * 64 * sizeof (uint8_t));
}
return 0;
}
int main() {
freopen("Lena.raw", "rb", stdin);
int r, c;
for (r = 0; r < N; r++)
for (c = 0; c < N; c++)
scanf("%c", &pic[r][c]);
init();
DCT();
quantization();
IDCT();
MSE();
return 0;
}
/* Decode un bloc frequentiel dans le fichier et renvoie un bloc pixmap */
void get_pixmap_block(uint8_t *pixmap_block, FILE *f, scan_desc_t *scan,
uint8_t index, image_t *im, uint16_t RI,
uint8_t QT[2][_BSIZE])
{
/* decompression d'une MCU frequentielle zigzag quant. */
printbody2(" │ ├─ Unpack block...\n");
int32_t bck_freq_qzz[_BSIZE];
unpack_block_sync(f,scan,RI,index,bck_freq_qzz);
/* dequantification et dezigzag */
printbody2(" │ ├─ IQZZ block...\n");
int32_t bck_freq[_BSIZE];
iqzz_block(bck_freq_qzz, bck_freq, QT[im->comp[index].iq]);
/* conversion du domaine frequentiel vers bitmap */
printbody2(" │ └─ IDCT block...\n");
IDCT(bck_freq,pixmap_block);
}
bool CBaseDecoder::PerformSynthesis(float *InputFreq, float *ToHere, int Channel, int step)
{
if(Channel)
ToHere ++;
/* We have 18 time-vectors of 32 subband magnitudes each. For every
vector of 32 magnitudes, the subband synthesis generates 32
PCM samples, so the result of 18 of these is 18*32=576 samples.
*/
/* advance the buffer position */
Vpointer[Channel] = (Vpointer[Channel] - 64) & 0x3ff;
IDCT(InputFreq, &V[ Channel ][ Vpointer[Channel] ]);
/* 32*16=512 mac's */
Window(Channel, ToHere, step);
return(true);
}
/* Perform IDCT on Y channel of the image converted to DCT
*/
void MyImage::IDCTBasedCompDecomp()
{
//memory allocated for elements of each column.
floatsYIDCTBlock = new float *[Height];
for( int i = 0 ; i < Height ; i++ )
{
floatsYIDCTBlock[i] = new float[Width];
}
if(PRINTIDCT == 1)
{
remove("IDCT.txt");
}
//Perform Discrete Cosine Transform
// Converts image from spatial or pixel domain into frequency domain
for(int row = 0; row < Height; row += 8)
{
for(int col = 0; col < Width; col += 8)
{
IDCT(row, col);
if(PRINTIDCT == 1)
{
PrintIDCT(row, col);
}
}
}
// Convert format from
//From 2D Array [YYYY..Y [UUUU..U [VVVV..V
// YYYY..] UUUU..U] VVVV..V]
//To Linear array [YYYY...Y][UUUU...U][VVVV...V]
LinearArrayForm();
}
mlib_status
__mlib_VideoIDCT8x8_S16_S16_B12(
mlib_s16 *block,
const mlib_s16 *coeffs)
{
mlib_d64 *dPtr = (mlib_d64 *)coeffs;
mlib_d64 *outPtr = (mlib_d64 *)block;
mlib_d64 dx0, dx1, dx2, dx3, dx4, dx6, dx7, dx8;
mlib_d64 p00, p10, p20, p30, p40, p50, p60, p70,
p01, p11, p21, p31, p41, p51, p61, p71;
mlib_d64 t0, t1;
mlib_d64 d0, d1, d2, d3, d4, d5, d6, d7;
mlib_f32 COS_1_16;
mlib_f32 COS_2_16;
mlib_f32 COS_6_16;
mlib_f32 COS_7_16;
mlib_f32 COS_4_16;
mlib_f32 C_1_4;
/* First pass */
vis_write_bmask(0x018923ab, 0x0);
LOAD_DATA_AA1 COS_1_16 = ((mlib_f32 *)mlib_cTable)[0];
COS_2_16 = ((mlib_f32 *)mlib_cTable)[1];
COS_6_16 = ((mlib_f32 *)mlib_cTable)[2];
COS_7_16 = ((mlib_f32 *)mlib_cTable)[3];
COS_4_16 = ((mlib_f32 *)mlib_cTable)[4];
C_1_4 = ((mlib_f32 *)mlib_cTable)[5];
TRANSPOSE_VIS2(p00, p10, p20, p30, d0, d1, d2, d3)
TRANSPOSE_VIS2(p01, p11, p21, p31, d4, d5, d6, d7)
LOAD_DATA_AA2 IDCT(d0, d1, d2, d3, d4, d5, d6, d7)
TRANSPOSE_VIS2(p40, p50, p60, p70, d0, d1, d2, d3)
p00 = vis_fpadd16(dx7, dx1);
p10 = vis_fpadd16(dx3, dx2);
p20 = vis_fpadd16(dx0, dx4);
p30 = vis_fpadd16(dx8, dx6);
p01 = vis_fpsub16(dx8, dx6);
p11 = vis_fpsub16(dx0, dx4);
p21 = vis_fpsub16(dx3, dx2);
p31 = vis_fpsub16(dx7, dx1);
TRANSPOSE_VIS2(p41, p51, p61, p71, d4, d5, d6, d7)
IDCT(d0, d1, d2, d3, d4, d5, d6, d7)
TRANSPOSE_VIS2(p00, p10, p20, p30, d0, d1, d2, d3)
p40 = vis_fpadd16(dx7, dx1);
p50 = vis_fpadd16(dx3, dx2);
p60 = vis_fpadd16(dx0, dx4);
p70 = vis_fpadd16(dx8, dx6);
p41 = vis_fpsub16(dx8, dx6);
p51 = vis_fpsub16(dx0, dx4);
p61 = vis_fpsub16(dx3, dx2);
p71 = vis_fpsub16(dx7, dx1);
/* Second pass */
TRANSPOSE_VIS2(p40, p50, p60, p70, d4, d5, d6, d7)
IDCT(d0, d1, d2, d3, d4, d5, d6, d7)
TRANSPOSE_VIS2(p01, p11, p21, p31, d0, d1, d2, d3)
outPtr[0] = vis_fmul8x16(C_1_4, vis_fpadd16(dx7, dx1));
outPtr[2] = vis_fmul8x16(C_1_4, vis_fpadd16(dx3, dx2));
outPtr[4] = vis_fmul8x16(C_1_4, vis_fpadd16(dx0, dx4));
outPtr[6] = vis_fmul8x16(C_1_4, vis_fpadd16(dx8, dx6));
outPtr[8] = vis_fmul8x16(C_1_4, vis_fpsub16(dx8, dx6));
outPtr[10] = vis_fmul8x16(C_1_4, vis_fpsub16(dx0, dx4));
outPtr[12] = vis_fmul8x16(C_1_4, vis_fpsub16(dx3, dx2));
outPtr[14] = vis_fmul8x16(C_1_4, vis_fpsub16(dx7, dx1));
TRANSPOSE_VIS2(p41, p51, p61, p71, d4, d5, d6, d7)
IDCT(d0, d1, d2, d3, d4, d5, d6, d7)
outPtr[1] = vis_fmul8x16(C_1_4, vis_fpadd16(dx7, dx1));
outPtr[3] = vis_fmul8x16(C_1_4, vis_fpadd16(dx3, dx2));
outPtr[5] = vis_fmul8x16(C_1_4, vis_fpadd16(dx0, dx4));
outPtr[7] = vis_fmul8x16(C_1_4, vis_fpadd16(dx8, dx6));
outPtr[9] = vis_fmul8x16(C_1_4, vis_fpsub16(dx8, dx6));
outPtr[11] = vis_fmul8x16(C_1_4, vis_fpsub16(dx0, dx4));
outPtr[13] = vis_fmul8x16(C_1_4, vis_fpsub16(dx3, dx2));
outPtr[15] = vis_fmul8x16(C_1_4, vis_fpsub16(dx7, dx1));
return (MLIB_SUCCESS);
}
void PitchMod::Modification()
{
int i,j;
float in1,in2;
pml=0;
float inc;
TRACE("\n PMS -l = %d",PMS_l);
Signal = new float [PMS_l];
Modifx = new short int [PMS_l*2];
for(i=0;i<PMS_l;i++)
Signal[i] = float(PMSignal[i]);
//AfxMessageBox("Fine");
PitchMark();
Find = new int [PMS_l];
//storing the pitch marked indices in Find array
for(i=0,j=0;i<PMS_l;i++)
{
if(PMark[i] == 1)
{
Find[j]=i;
//TRACE("Find = %d\n",Find[j]);
j++; // stores the no. of pitch marks
}
}
count=j-1; // total no of pitch marks
// Pitch modification
in1=float(1.0);
int f,fin,cnt,cc,k=0;
float pe,*ccc;
ccc = new float [count];
if(Type == 1)//question
{
if(Mod_Count == 1)
{
in1=float(1.0);//in question,pitch should raise
in2=float(1.1);//so from 1.0 to 1.1
}
else if(Mod_Count == 2)
{
in1 = float(1.0);
in2 = float(1.1);
}
}
else if(Type == 2)//exclamation
{
if(Mod_Count == 1)
{
in1 = float(1.0);//in exclmtn,pitch should raise
in2 = float(1.1);//so from 1.0 to 1.1
}
else if(Mod_Count == 2)
{
in1=float(1.0);
in2=float(1.1);
}
}
else if(Type == 3)//comma
{
in1=float(1.0);//in comma,pitch should drop
in2=float(0.95);//so from 1.0 to .95
}
else if(Type == 4)//dot
{
in1=float(1.0);//in dot,pitch should drop
in2 = float(0.9);//so from 1.0 to .9
}
inc=float(in2-in1)/count;
//inc=float((log(in2)-log(in1))/float(count));
//TRACE("inc = %f",inc);
/*for(i=0;i<count;i++)
{
ccc[i]=float(exp(log(in1)+i*inc));
// TRACE(" ccc = %f",ccc[i]);
}*/
f=0; fin=1; cnt=0; cc=1;j=0;
len_modifx=0;
while(j<count)//count contains total no. of pitch marks
{
k=0;
//TRACE("\n Pass 1 i=%d,Find = %d",i,Find[j+1]);
for(i=Find[j];i<=Find[j+1];i++) //read 1 frame data,from 1 pitchmark to another
{
frame[k]=Signal[i];
k++;
}
j=j+1;
frame_l=k-1; //no. of points in the frame
int a_l,b_l,x_l;
float *g;
g = new float;
g[0]=1.0;
LPC();
b_l=11;
a_l=1;
x_l=frame_l;
Filter(LpcCoeff,g,frame,b_l,a_l,x_l);
Excitation = new float [frame_l];
Excitation=y;
FDCT();
pe=float(1.0/(in1+cnt*inc));
//pe=float(1.0/ccc[cnt]);
len=int(ceil(pe*frame_l));
//TRACE("len = %d frame_l = %d\t",len,frame_l);
IDCT();
b_l=1;
a_l=11;
x_l=len;
Filter(g,LpcCoeff,IDctCoeff,b_l,a_l,x_l);
for(i=0;i<len;i++)
{
Modifx[pml]=(sqrt(1.0*frame_l/len) * y[i]);
len_modifx++;
pml=pml+1;
}
// Normalisation
short int max=0;
for(i=0;i<len;i++)
{
//Modifx[i]=abs(Modifx[i]);
if(abs(Modifx[i]) > max)
max=abs(Modifx[i]);
}
//TRACE(" \nmax = %d",max);
for(i=0;i<len;i++)
Modifx[i]=short int(Modifx[i]*1.0/max);
cc=cc+1;
cnt=cnt+1;
delete [] DctCoeff;
delete [] IDctCoeff;
delete [] Excitation;
delete [] y;
delete [] g;
pml--;
//TRACE(" j= %d count = %d",j,count);
}//endof loop for all pitch marks
pml--;
delete [] ccc;
TRACE("\nOut of PM");
}//Modification()
