static void encodeMainData(shine_global_config *config)
{
int gr, ch, sfb;
shine_side_info_t si = config->side_info;
for (gr = 0; gr < config->mpeg.granules_per_frame; gr++)
{
for (ch = 0; ch < config->wave.channels; ch++)
{
gr_info *gi = &(si.gr[gr].ch[ch].tt);
unsigned slen1 = slen1_tab[gi->scalefac_compress];
unsigned slen2 = slen2_tab[gi->scalefac_compress];
int *ix = &config->l3_enc[ch][gr][0];
if (gr == 0 || si.scfsi[ch][0] == 0)
for (sfb = 0; sfb < 6; sfb++)
shine_putbits(&config->bs, config->scalefactor.l[gr][ch][sfb], slen1);
if (gr == 0 || si.scfsi[ch][1] == 0)
for (sfb = 6; sfb < 11; sfb++)
shine_putbits(&config->bs, config->scalefactor.l[gr][ch][sfb], slen1);
if (gr == 0 || si.scfsi[ch][2] == 0)
for (sfb = 11; sfb < 16; sfb++)
shine_putbits(&config->bs, config->scalefactor.l[gr][ch][sfb], slen2);
if (gr == 0 || si.scfsi[ch][3] == 0)
for (sfb = 16; sfb < 21; sfb++)
shine_putbits(&config->bs, config->scalefactor.l[gr][ch][sfb], slen2);
Huffmancodebits(config, ix, gi);
}
}
}
/*
* encodeMainData
* --------------
* Encodes the spectrum and places the coded
* main data in the buffer main.
* Returns the number of bytes stored.
*/
static int encodeMainData(int l3_enc[2][2][samp_per_frame2],
L3_side_info_t *si)
{
int gr, ch;
bits = 0;
by = 0;
bi = 8;
main_[0]=0;
/* huffmancodes plus reservoir stuffing */
for(gr = 0; gr < config.mpeg.granules; gr++)
for (ch = 0; ch < config.mpeg.channels; ch++)
Huffmancodebits( l3_enc[gr][ch], &si->gr[gr].ch[ch].tt ); /* encode the spectrum */
/* ancillary data, used for reservoir stuffing overflow */
if(si->resv_drain)
{
int words = si->resv_drain >> 5;
int remainder = si->resv_drain & 31;
/* pad with zeros */
while(words--)
putbits(main_, 0, 32 );
if(remainder)
putbits(main_, 0, remainder );
}
static void encodeMainData( int l3_enc[2][2][576],
III_side_info_t *si,
III_scalefac_t *scalefac )
{
int gr, ch, sfb, window, mode_gr;
mode_gr = 2;
for ( gr = 0; gr < mode_gr; gr++ )
for ( ch = 0; ch < stereo; ch++ )
scaleFactorsPH[gr][ch]->nrEntries = 0;
for ( gr = 0; gr < mode_gr; gr++ )
for ( ch = 0; ch < stereo; ch++ )
codedDataPH[gr][ch]->nrEntries = 0;
for ( gr = 0; gr < 2; gr++ )
{
for ( ch = 0; ch < stereo; ch++ )
{
BitHolder **pph = &scaleFactorsPH[gr][ch];
gr_info *gi = &(si->gr[gr].ch[ch].tt);
unsigned slen1 = slen1_tab[ gi->scalefac_compress ];
unsigned slen2 = slen2_tab[ gi->scalefac_compress ];
int *ix = &l3_enc[gr][ch][0];
if ( (gi->window_switching_flag == 1) && (gi->block_type == 2) )
{
if ( gi->mixed_block_flag )
{
for ( sfb = 0; sfb < 8; sfb++ )
addBits( *pph, scalefac->l[gr][ch][sfb], slen1 );
for ( sfb = 3; sfb < 6; sfb++ )
for ( window = 0; window < 3; window++ )
addBits( *pph, scalefac->s[gr][ch][sfb][window], slen1 );
for ( sfb = 6; sfb < 12; sfb++ )
for ( window = 0; window < 3; window++ )
addBits( *pph, scalefac->s[gr][ch][sfb][window], slen2 );
}
else
{
for ( sfb = 0; sfb < 6; sfb++ )
for ( window = 0; window < 3; window++ )
addBits( *pph, scalefac->s[gr][ch][sfb][window], slen1 );
for ( sfb = 6; sfb < 12; sfb++ )
for ( window = 0; window < 3; window++ )
addBits( *pph, scalefac->s[gr][ch][sfb][window], slen2 );
}
}
else
{
if ( (gr == 0) || (si->scfsi[ch][0] == 0) )
for ( sfb = 0; sfb < 6; sfb++ )
addBits( *pph, scalefac->l[gr][ch][sfb], slen1 );
if ( (gr == 0) || (si->scfsi[ch][1] == 0) )
for ( sfb = 6; sfb < 11; sfb++ )
addBits( *pph, scalefac->l[gr][ch][sfb], slen1 );
if ( (gr == 0) || (si->scfsi[ch][2] == 0) )
for ( sfb = 11; sfb < 16; sfb++ )
addBits( *pph, scalefac->l[gr][ch][sfb], slen2 );
if ( (gr == 0) || (si->scfsi[ch][3] == 0) )
for ( sfb = 16; sfb < 21; sfb++ )
addBits( *pph, scalefac->l[gr][ch][sfb], slen2 );
}
Huffmancodebits( &codedDataPH[gr][ch], ix, gi );
} /* for ch */
} /* for gr */
} /* main_data */
