?? g729a_acelp_ca.c
字號(hào):
#include "../Common/typedef.h"
#include "../Include/G729A_basic_op.h"
#include "../Include/G729A_ld8a.h"
static void G729ACor_h(Word16 *H, Word16 *rr );
static Word16 G729AD4i40_17_fast(Word16 dn[], Word16 *rr, Word16 h[], Word16 cod[], Word16 y[], Word16 *sign);
Word16 G729AACELP_Code_A(Word16 x[], Word16 h[], Word16 T0, Word16 pitch_sharp, Word16 code[], Word16 y[], Word16 *sign)
{
Word16 i, index, sharp;
Word16 Dn[G729A_L_SUBFR];
Word16 rr[G729A_DIM_RR];
sharp = G729Ashl_s(pitch_sharp, 1);
if (T0 < G729A_L_SUBFR)
for (i = T0; i < G729A_L_SUBFR; i++)
h[i] = G729Aadd_s(h[i], G729Amult(h[i-T0], sharp));
G729ACor_h(h, rr);
G729ACor_h_X(h, x, Dn);
index = G729AD4i40_17_fast(Dn, rr, h, code, y, sign);
if(T0 < G729A_L_SUBFR)
for (i = T0; i < G729A_L_SUBFR; i++)
code[i] = G729Aadd_s(code[i], G729Amult(code[i-T0], sharp));
return index;
}
static void G729ACor_h(Word16 *H, Word16 *rr)
{
Word16 *rri0i0, *rri1i1, *rri2i2, *rri3i3, *rri4i4;
Word16 *rri0i1, *rri0i2, *rri0i3, *rri0i4;
Word16 *rri1i2, *rri1i3, *rri1i4;
Word16 *rri2i3, *rri2i4;
Word16 *p0, *p1, *p2, *p3, *p4;
Word16 *ptr_hd, *ptr_hf, *ptr_h1, *ptr_h2;
Word32 cor;
Word16 i, k, ldec, l_fin_sup, l_fin_inf;
Word16 h[G729A_L_SUBFR];
Word32 L_result;
cor = 0;
if(G729Asub_s(G729Aextract_h(cor),32000) > 0)
{
for(i=0; i<G729A_L_SUBFR; i++)
{
L_result = _sshvr((Word32)H[i], 1);
h[i] = (Word16)_spack2(L_result, L_result);
}
}
else
{
k = G729Anorm_l(cor);
k = G729Ashr_s(k, 1);
for(i=0; i<G729A_L_SUBFR; i++)
{
L_result = _sshl((Word32)H[i], k);
h[i] = (Word16)_spack2(L_result, L_result);
}
}
rri0i0 = rr;
rri1i1 = rri0i0 + G729A_NB_POS;
rri2i2 = rri1i1 + G729A_NB_POS;
rri3i3 = rri2i2 + G729A_NB_POS;
rri4i4 = rri3i3 + G729A_NB_POS;
rri0i1 = rri4i4 + G729A_NB_POS;
rri0i2 = rri0i1 + G729A_MSIZE;
rri0i3 = rri0i2 + G729A_MSIZE;
rri0i4 = rri0i3 + G729A_MSIZE;
rri1i2 = rri0i4 + G729A_MSIZE;
rri1i3 = rri1i2 + G729A_MSIZE;
rri1i4 = rri1i3 + G729A_MSIZE;
rri2i3 = rri1i4 + G729A_MSIZE;
rri2i4 = rri2i3 + G729A_MSIZE;
p0 = rri0i0 + G729A_NB_POS-1;
p1 = rri1i1 + G729A_NB_POS-1;
p2 = rri2i2 + G729A_NB_POS-1;
p3 = rri3i3 + G729A_NB_POS-1;
p4 = rri4i4 + G729A_NB_POS-1;
ptr_h1 = h;
cor = 0;
for(i=0; i<G729A_NB_POS; i++)
{
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h1)); ptr_h1++;
*p4-- = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h1)); ptr_h1++;
*p3-- = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h1)); ptr_h1++;
*p2-- = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h1)); ptr_h1++;
*p1-- = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h1)); ptr_h1++;
*p0-- = cor>>16;
}
l_fin_sup = G729A_MSIZE-1;
l_fin_inf = l_fin_sup-(Word16)1;
ldec = G729A_NB_POS+1;
ptr_hd = h;
ptr_hf = ptr_hd + 1;
for(k=0; k<G729A_NB_POS; k++)
{
p3 = rri2i3 + l_fin_sup;
p2 = rri1i2 + l_fin_sup;
p1 = rri0i1 + l_fin_sup;
p0 = rri0i4 + l_fin_inf;
cor = 0;
ptr_h1 = ptr_hd;
ptr_h2 = ptr_hf;
for(i=k+(Word16)1; i<G729A_NB_POS; i++ )
{
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = G729Aextract_h(cor);
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = G729Aextract_h(cor);
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p1 = G729Aextract_h(cor);
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p0 = G729Aextract_h(cor);
p3 -= ldec;
p2 -= ldec;
p1 -= ldec;
p0 -= ldec;
}
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p1 = cor>>16;
l_fin_sup -= G729A_NB_POS;
l_fin_inf--;
ptr_hf += G729A_STEP;
}
ptr_hd = h;
ptr_hf = ptr_hd + 2;
l_fin_sup = G729A_MSIZE-1;
l_fin_inf = l_fin_sup-(Word16)1;
for(k=0; k<G729A_NB_POS; k++)
{
p4 = rri2i4 + l_fin_sup;
p3 = rri1i3 + l_fin_sup;
p2 = rri0i2 + l_fin_sup;
p1 = rri1i4 + l_fin_inf;
p0 = rri0i3 + l_fin_inf;
cor = 0;
ptr_h1 = ptr_hd;
ptr_h2 = ptr_hf;
for(i=k+(Word16)1; i<G729A_NB_POS; i++ )
{
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p4 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p1 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p0 = cor>>16;
p4 -= ldec;
p3 -= ldec;
p2 -= ldec;
p1 -= ldec;
p0 -= ldec;
}
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p4 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = cor>>16;
l_fin_sup -= G729A_NB_POS;
l_fin_inf--;
ptr_hf += G729A_STEP;
}
ptr_hd = h;
ptr_hf = ptr_hd + 3;
l_fin_sup = G729A_MSIZE-1;
l_fin_inf = l_fin_sup-(Word16)1;
for(k=0; k<G729A_NB_POS; k++)
{
p4 = rri1i4 + l_fin_sup;
p3 = rri0i3 + l_fin_sup;
p2 = rri2i4 + l_fin_inf;
p1 = rri1i3 + l_fin_inf;
p0 = rri0i2 + l_fin_inf;
ptr_h1 = ptr_hd;
ptr_h2 = ptr_hf;
cor = 0;
for(i=k+(Word16)1; i<G729A_NB_POS; i++ )
{
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p4 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p1 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p0 = cor>>16;
p4 -= ldec;
p3 -= ldec;
p2 -= ldec;
p1 -= ldec;
p0 -= ldec;
}
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p4 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
l_fin_sup -= G729A_NB_POS;
l_fin_inf--;
ptr_hf += G729A_STEP;
}
ptr_hd = h;
ptr_hf = ptr_hd + 4;
l_fin_sup = G729A_MSIZE-1;
l_fin_inf = l_fin_sup-(Word16)1;
for(k=0; k<G729A_NB_POS; k++)
{
p3 = rri0i4 + l_fin_sup;
p2 = rri2i3 + l_fin_inf;
p1 = rri1i2 + l_fin_inf;
p0 = rri0i1 + l_fin_inf;
ptr_h1 = ptr_hd;
ptr_h2 = ptr_hf;
cor = 0;
for(i=k+(Word16)1; i<G729A_NB_POS; i++ )
{
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p2 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p1 = cor>>16;
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p0 = cor>>16;
p3 -= ldec;
p2 -= ldec;
p1 -= ldec;
p0 -= ldec;
}
cor = _sadd(cor, _smpy(*ptr_h1, *ptr_h2)); ptr_h1++; ptr_h2++;
*p3 = cor>>16;
l_fin_sup -= G729A_NB_POS;
l_fin_inf--;
ptr_hf += G729A_STEP;
}
return;
}
static Word16 G729AD4i40_17_fast(Word16 dn[], Word16 rr[], Word16 h[], Word16 cod[], Word16 y[], Word16 *sign)
{
Word16 i0, i1, i2, i3, ip0, ip1, ip2, ip3;
Word16 i, j, ix, iy, track, trk, max;
Word16 prev_i0, i1_offset;
Word16 psk, ps, ps0, ps1, ps2, sq, sq2;
Word16 alpk, alp, alp_16;
Word32 s, alp0, alp1, alp2;
Word16 *p0, *p1, *p2, *p3, *p4;
Word16 sign_dn[G729A_L_SUBFR], sign_dn_inv[G729A_L_SUBFR], *psign;
Word16 tmp_vect[G729A_NB_POS];
Word16 *rri0i0, *rri1i1, *rri2i2, *rri3i3, *rri4i4;
Word16 *rri0i1, *rri0i2, *rri0i3, *rri0i4;
Word16 *rri1i2, *rri1i3, *rri1i4;
Word16 *rri2i3, *rri2i4;
Word16 *ptr_rri0i3_i4;
Word16 *ptr_rri1i3_i4;
Word16 *ptr_rri2i3_i4;
Word16 *ptr_rri3i3_i4;
rri0i0 = rr;
rri1i1 = rri0i0 + G729A_NB_POS;
rri2i2 = rri1i1 + G729A_NB_POS;
rri3i3 = rri2i2 + G729A_NB_POS;
rri4i4 = rri3i3 + G729A_NB_POS;
rri0i1 = rri4i4 + G729A_NB_POS;
rri0i2 = rri0i1 + G729A_MSIZE;
rri0i3 = rri0i2 + G729A_MSIZE;
rri0i4 = rri0i3 + G729A_MSIZE;
rri1i2 = rri0i4 + G729A_MSIZE;
rri1i3 = rri1i2 + G729A_MSIZE;
rri1i4 = rri1i3 + G729A_MSIZE;
rri2i3 = rri1i4 + G729A_MSIZE;
rri2i4 = rri2i3 + G729A_MSIZE;
for (i=0; i<G729A_L_SUBFR; i++)
{
sign_dn[i] = (dn[i] >= 0) ? G729AMAX_16 : G729AMIN_16;
sign_dn_inv[i] = (dn[i] >= 0) ? G729AMIN_16 : G729AMAX_16;
dn[i] = (dn[i] >= 0) ? dn[i] : G729Anegate(dn[i]);
}
p0 = rri0i1;
p1 = rri0i2;
p2 = rri0i3;
p3 = rri0i4;
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