int AACQuantize(CoderInfo *coderInfo,
PsyInfo *psyInfo,
ChannelInfo *channelInfo,
int *cb_width,
int num_cb,
double *xr,
AACQuantCfg *aacquantCfg)
{
int sb, i, do_q = 0;
int bits = 0, sign;
double xr_pow[FRAME_LEN];
double xmin[MAX_SCFAC_BANDS];
int xi[FRAME_LEN];
/* Use local copy's */
int *scale_factor = coderInfo->scale_factor;
/* Set all scalefactors to 0 */
coderInfo->global_gain = 0;
for (sb = 0; sb < coderInfo->nr_of_sfb; sb++)
scale_factor[sb] = 0;
/* Compute xr_pow */
for (i = 0; i < FRAME_LEN; i++) {
double temp = fabs(xr[i]);
xr_pow[i] = sqrt(temp * sqrt(temp));
do_q += (temp > 1E-20);
}
if (do_q) {
CalcAllowedDist(coderInfo, psyInfo, xr, xmin, aacquantCfg->quality);
coderInfo->global_gain = 0;
FixNoise(coderInfo, xr, xr_pow, xi, xmin,
aacquantCfg->pow43, aacquantCfg->adj43);
BalanceEnergy(coderInfo, xr, xi, aacquantCfg->pow43);
UpdateRequant(coderInfo, xi, aacquantCfg->pow43);
for ( i = 0; i < FRAME_LEN; i++ ) {
sign = (xr[i] < 0) ? -1 : 1;
xi[i] *= sign;
coderInfo->requantFreq[i] *= sign;
}
} else {
coderInfo->global_gain = 0;
SetMemory(xi, 0, FRAME_LEN*sizeof(int));
}
BitSearch(coderInfo, xi);
/* offset the difference of common_scalefac and scalefactors by SF_OFFSET */
for (i = 0; i < coderInfo->nr_of_sfb; i++) {
if ((coderInfo->book_vector[i]!=INTENSITY_HCB)&&(coderInfo->book_vector[i]!=INTENSITY_HCB2)) {
scale_factor[i] = coderInfo->global_gain - scale_factor[i] + SF_OFFSET;
}
}
coderInfo->global_gain = scale_factor[0];
#if 0
printf("global gain: %d\n", coderInfo->global_gain);
for (i = 0; i < coderInfo->nr_of_sfb; i++)
printf("sf %d: %d\n", i, coderInfo->scale_factor[i]);
#endif
/* place the codewords and their respective lengths in arrays data[] and len[] respectively */
/* there are 'counter' elements in each array, and these are variable length arrays depending on the input */
#ifdef DRM
coderInfo->iLenReordSpData = 0; /* init length of reordered spectral data */
coderInfo->iLenLongestCW = 0; /* init length of longest codeword */
coderInfo->cur_cw = 0; /* init codeword counter */
#endif
coderInfo->spectral_count = 0;
sb = 0;
for(i = 0; i < coderInfo->nr_of_sfb; i++) {
OutputBits(
coderInfo,
#ifdef DRM
&coderInfo->book_vector[i], /* needed for VCB11 */
#else
coderInfo->book_vector[i],
#endif
xi,
coderInfo->sfb_offset[i],
coderInfo->sfb_offset[i+1]-coderInfo->sfb_offset[i]);
if (coderInfo->book_vector[i])
sb = i;
}
// FIXME: Check those max_sfb/nr_of_sfb. Isn't it the same?
coderInfo->max_sfb = coderInfo->nr_of_sfb = sb + 1;
return bits;
}
void AACQuantize(CoderInfo *coderInfo,
ChannelInfo *channelInfo,
int32_t *cb_width,
int32_t num_cb,
coef_t *xr,
pow_t *xr2,
AACQuantCfg *aacquantCfg)
{
register int32_t sb, i;
coef_t xr_pow[FRAME_LEN];
real_32_t xmin[MAX_SCFAC_BANDS];
int32_t xi[FRAME_LEN];
int32_t *scale_factor;
/* Use local copy's */
scale_factor = coderInfo->scale_factor;
/* Set all scalefactors to 0 */
coderInfo->global_gain = 0;
for (sb = 0; sb < coderInfo->nr_of_sfb; sb++)
scale_factor[sb] = 0;
/* Compute xr_pow */
for (i = 0; i < FRAME_LEN; i++) {
xr_pow[i] = faac_pow34(xr[i]);
#ifdef DUMP_XR_POW
printf("xr_pow[%d] = %.8f\n",i,COEF2FLOAT(xr_pow[i]));
#endif
}
#ifdef DUMP_XR_POW
// exit(1);
#endif
CalcAllowedDist(coderInfo, xr2, xmin, aacquantCfg->quality);
coderInfo->global_gain = 0;
FixNoise(coderInfo, xr_pow, xi, xmin);
for ( i = 0; i < FRAME_LEN; i++ ) {
if ( xr[i] < 0 )
xi[i] = -xi[i];
}
BitSearch(coderInfo, xi);
/* offset the difference of common_scalefac and scalefactors by SF_OFFSET */
for (i = 0; i < coderInfo->nr_of_sfb; i++) {
if ( (coderInfo->book_vector[i]!=INTENSITY_HCB) &&
(coderInfo->book_vector[i]!=INTENSITY_HCB2) ) {
scale_factor[i] = coderInfo->global_gain - scale_factor[i] + SF_OFFSET;
}
}
coderInfo->global_gain = scale_factor[0];
/* place the codewords and their respective lengths in arrays data[] and len[] respectively */
/* there are 'counter' elements in each array, and these are variable length arrays depending on the input */
coderInfo->spectral_count = 0;
sb = 0;
for(i = 0; i < coderInfo->nr_of_sfb; i++) {
OutputBits(
coderInfo,
coderInfo->book_vector[i],
xi,
coderInfo->sfb_offset[i],
coderInfo->sfb_offset[i+1]-coderInfo->sfb_offset[i]);
if (coderInfo->book_vector[i])
sb = i;
}
// FIXME: Check those max_sfb/nr_of_sfb. Isn't it the same?
coderInfo->max_sfb = coderInfo->nr_of_sfb = sb + 1;
}