void code_8i40_31bits (
Word16 x[], /* i : target vector */
Word16 cn[], /* i : residual after long term prediction */
Word16 h[], /* i : impulse response of weighted synthesis
filter */
Word16 cod[], /* o : algebraic (fixed) codebook excitation */
Word16 y[], /* o : filtered fixed codebook excitation */
Word16 indx[] /* o : 7 Word16, index of 8 pulses (signs+positions) */
)
{
Word16 ipos[NB_PULSE], pos_max[NB_TRACK_MR102], codvec[NB_PULSE];
Word16 dn[L_CODE], sign[L_CODE];
Word16 rr[L_CODE][L_CODE];
Word16 linear_signs[NB_TRACK_MR102];
Word16 linear_codewords[NB_PULSE];
cor_h_x2 (h, x, dn, 2, NB_TRACK_MR102, STEP_MR102);
/* 2 = use GSMEFR scaling */
set_sign12k2 (dn, cn, sign, pos_max, NB_TRACK_MR102, ipos, STEP_MR102);
/* same setsign alg as GSM-EFR new constants though*/
cor_h (h, sign, rr);
search_10and8i40 (NB_PULSE, STEP_MR102, NB_TRACK_MR102,
dn, rr, ipos, pos_max, codvec);
build_code (codvec, sign, cod, h, y, linear_signs, linear_codewords);
compress_code (linear_signs, linear_codewords, indx);
return;
}
/*----------------------------------------------------------------------------
; FUNCTION CODE
----------------------------------------------------------------------------*/
void code_10i40_35bits(
Word16 x[], /* (i) : target vector */
Word16 cn[], /* (i) : residual after long term prediction */
Word16 h[], /* (i) : impulse response of weighted synthesis filter
h[-L_subfr..-1] must be set to zero */
Word16 cod[], /* (o) : algebraic (fixed) codebook excitation */
Word16 y[], /* (o) : filtered fixed codebook excitation */
Word16 indx[], /* (o) : index of 10 pulses (sign + position) */
Flag *pOverflow /* (i/o) : overflow Flag */
)
{
Word16 ipos[NB_PULSE], pos_max[NB_TRACK], codvec[NB_PULSE];
Word16 dn[L_CODE], sign[L_CODE];
Word16 rr[L_CODE][L_CODE], i;
cor_h_x(h, x, dn, 2, pOverflow);
set_sign12k2(dn, cn, sign, pos_max, NB_TRACK, ipos, STEP, pOverflow);
cor_h(h, sign, rr, pOverflow);
search_10and8i40(NB_PULSE, STEP, NB_TRACK,
dn, rr, ipos, pos_max, codvec, pOverflow);
build_code(codvec, sign, cod, h, y, indx, pOverflow);
for (i = 0; i < 10; i++)
{
q_p(&indx[i], i);
}
return;
}
