eden-emu/opus
19
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Simplifying the stereo energy quantisation functions now that energy is

Browse source 
de-interleaved
This commit is contained in:
Jean-Marc Valin 2009-06-14 09:29:51 -04:00
parent 83c26e713c
commit 095abafcb7
1 changed files with 23 additions and 113 deletions
Download patch file Download diff file Expand all files Collapse all files

118
libcelt/quant_bands.c
View file

@ -294,152 +294,62 @@ static void unquant_energy_finalise_mono(const CELTMode *m, celt_ener_t *eBands,
unsigned quant_coarse_energy(const CELTMode *m, celt_word16_t *eBands, celt_word16_t *oldEBands, int budget, int intra, int *prob, celt_word16_t *error, ec_enc *enc)
{
int C;
int C, c;
unsigned maxBudget=0;
C = m->nbChannels;
if (C==1)
{
return quant_coarse_energy_mono(m, eBands, oldEBands, budget, intra, prob, error, enc);
} else {
int c;
unsigned maxBudget=0;
for (c=0;c<C;c++)
{
int i;
unsigned coarse_needed;
VARDECL(celt_word16_t, E);
SAVE_STACK;
ALLOC(E, m->nbEBands, celt_word16_t);
for (i=0;i<m->nbEBands;i++)
E[i] = eBands[i+c*m->nbEBands];
coarse_needed=quant_coarse_energy_mono(m, E, oldEBands+c*m->nbEBands, budget/C, intra, prob, error+c*m->nbEBands, enc);
coarse_needed=quant_coarse_energy_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, budget/C, intra, prob, error+c*m->nbEBands, enc);
maxBudget=IMAX(maxBudget,coarse_needed);
RESTORE_STACK;
}
return maxBudget*C;
}
}
void quant_fine_energy(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *oldEBands, celt_word16_t *error, int *fine_quant, ec_enc *enc)
{
int C;
int C, c;
C = m->nbChannels;
if (C==1)
{
quant_fine_energy_mono(m, eBands, oldEBands, error, fine_quant, enc);
} else {
int c;
VARDECL(celt_ener_t, E);
ALLOC(E, m->nbEBands, celt_ener_t);
for (c=0;c<C;c++)
{
int i;
SAVE_STACK;
quant_fine_energy_mono(m, E, oldEBands+c*m->nbEBands, error+c*m->nbEBands, fine_quant, enc);
for (i=0;i<m->nbEBands;i++)
eBands[i+c*m->nbEBands] = E[i];
RESTORE_STACK;
}
}
quant_fine_energy_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, error+c*m->nbEBands, fine_quant, enc);
}
void quant_energy_finalise(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *oldEBands, celt_word16_t *error, int *fine_quant, int *fine_priority, int bits_left, ec_enc *enc)
{
int C;
int C, c;
C = m->nbChannels;
if (C==1)
{
quant_energy_finalise_mono(m, eBands, oldEBands, error, fine_quant, fine_priority, bits_left, enc);
} else {
int c;
VARDECL(celt_ener_t, E);
ALLOC(E, m->nbEBands, celt_ener_t);
for (c=0;c<C;c++)
{
int i;
SAVE_STACK;
quant_energy_finalise_mono(m, E, oldEBands+c*m->nbEBands, error+c*m->nbEBands, fine_quant, fine_priority, bits_left/C, enc);
for (i=0;i<m->nbEBands;i++)
eBands[i+c*m->nbEBands] = E[i];
RESTORE_STACK;
}
}
quant_energy_finalise_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, error+c*m->nbEBands, fine_quant, fine_priority, bits_left/C, enc);
}
void unquant_coarse_energy(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *oldEBands, int budget, int intra, int *prob, ec_dec *dec)
{
int C;
int C, c;
C = m->nbChannels;
if (C==1)
{
unquant_coarse_energy_mono(m, eBands, oldEBands, budget, intra, prob, dec);
}
else {
int c;
VARDECL(celt_ener_t, E);
SAVE_STACK;
ALLOC(E, m->nbEBands, celt_ener_t);
for (c=0;c<C;c++)
{
unquant_coarse_energy_mono(m, E, oldEBands+c*m->nbEBands, budget/C, intra, prob, dec);
}
RESTORE_STACK;
}
unquant_coarse_energy_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, budget/C, intra, prob, dec);
}
void unquant_fine_energy(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *oldEBands, int *fine_quant, ec_dec *dec)
{
int C;
int C, c;
C = m->nbChannels;
if (C==1)
{
unquant_fine_energy_mono(m, eBands, oldEBands, fine_quant, dec);
}
else {
int c;
VARDECL(celt_ener_t, E);
SAVE_STACK;
ALLOC(E, m->nbEBands, celt_ener_t);
for (c=0;c<C;c++)
{
int i;
unquant_fine_energy_mono(m, E, oldEBands+c*m->nbEBands, fine_quant, dec);
for (i=0;i<m->nbEBands;i++)
eBands[i+c*m->nbEBands] = E[i];
}
RESTORE_STACK;
}
unquant_fine_energy_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, fine_quant, dec);
}
void unquant_energy_finalise(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *oldEBands, int *fine_quant, int *fine_priority, int bits_left, ec_dec *dec)
{
int C;
int C, c;
C = m->nbChannels;
if (C==1)
{
unquant_energy_finalise_mono(m, eBands, oldEBands, fine_quant, fine_priority, bits_left, dec);
}
else {
int c;
VARDECL(celt_ener_t, E);
SAVE_STACK;
ALLOC(E, m->nbEBands, celt_ener_t);
for (c=0;c<C;c++)
{
int i;
unquant_energy_finalise_mono(m, E, oldEBands+c*m->nbEBands, fine_quant, fine_priority, bits_left/C, dec);
for (i=0;i<m->nbEBands;i++)
eBands[i+c*m->nbEBands] = E[i];
}
RESTORE_STACK;
}
unquant_energy_finalise_mono(m, eBands+c*m->nbEBands, oldEBands+c*m->nbEBands, fine_quant, fine_priority, bits_left/C, dec);
}