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Commit 83c26e71 authored by Jean-Marc Valin's avatar Jean-Marc Valin
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Now storing the band energies in de-interleaved format when doing stereo

parent 7a56741b
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libcelt/bands.c
View file @ 83c26e71
......@@ -74,11 +74,11 @@ void compute_band_energies(const CELTMode *m, const celt_sig_t *X, celt_ener_t *
} while (++j<eBands[i+1]);
/* We're adding one here to make damn sure we never end up with a pitch vector that's
larger than unity norm */
bank[i*C+c] = EPSILON+VSHR32(EXTEND32(celt_sqrt(sum)),-shift);
bank[i+c*m->nbEBands] = EPSILON+VSHR32(EXTEND32(celt_sqrt(sum)),-shift);
} else {
bank[i*C+c] = EPSILON;
bank[i+c*m->nbEBands] = EPSILON;
}
/*printf ("%f ", bank[i*C+c]);*/
/*printf ("%f ", bank[i+c*m->nbEBands]);*/
}
}
/*printf ("\n");*/
......@@ -96,8 +96,8 @@ void normalise_bands(const CELTMode *m, const celt_sig_t * restrict freq, celt_n
celt_word16_t g;
int j,shift;
celt_word16_t E;
shift = celt_zlog2(bank[i*C+c])-13;
E = VSHR32(bank[i*C+c], shift);
shift = celt_zlog2(bank[i+c*m->nbEBands])-13;
E = VSHR32(bank[i+c*m->nbEBands], shift);
g = EXTRACT16(celt_rcp(SHL32(E,3)));
j=eBands[i]; do {
X[j*C+c] = MULT16_16_Q15(VSHR32(freq[j*C+c],shift-1),g);
......@@ -121,8 +121,8 @@ void compute_band_energies(const CELTMode *m, const celt_sig_t *X, celt_ener_t *
celt_word32_t sum = 1e-10;
for (j=eBands[i];j<eBands[i+1];j++)
sum += X[j*C+c]*X[j*C+c];
bank[i*C+c] = sqrt(sum);
/*printf ("%f ", bank[i*C+c]);*/
bank[i+c*m->nbEBands] = sqrt(sum);
/*printf ("%f ", bank[i+c*m->nbEBands]);*/
}
}
/*printf ("\n");*/
......@@ -142,8 +142,8 @@ void compute_noise_energies(const CELTMode *m, const celt_sig_t *X, const celt_w
celt_word32_t sum = 1e-10;
for (j=eBands[i];j<eBands[i+1];j++)
sum += X[j*C+c]*X[j*C+c]*tonality[j];
bank[i*C+c] = sqrt(sum);
/*printf ("%f ", bank[i*C+c]);*/
bank[i+c*m->nbEBands] = sqrt(sum);
/*printf ("%f ", bank[i+c*m->nbEBands]);*/
}
}
/*printf ("\n");*/
......@@ -161,7 +161,7 @@ void normalise_bands(const CELTMode *m, const celt_sig_t * restrict freq, celt_n
for (i=0;i<m->nbEBands;i++)
{
int j;
celt_word16_t g = 1.f/(1e-10+bank[i*C+c]);
celt_word16_t g = 1.f/(1e-10+bank[i+c*m->nbEBands]);
for (j=eBands[i];j<eBands[i+1];j++)
X[j*C+c] = freq[j*C+c]*g;
}
......@@ -198,7 +198,7 @@ void denormalise_bands(const CELTMode *m, const celt_norm_t * restrict X, celt_s
for (i=0;i<m->nbEBands;i++)
{
int j;
celt_word32_t g = SHR32(bank[i*C+c],1);
celt_word32_t g = SHR32(bank[i+c*m->nbEBands],1);
j=eBands[i]; do {
freq[j*C+c] = SHL32(MULT16_32_Q15(X[j*C+c], g),2);
} while (++j<eBands[i+1]);
......@@ -305,10 +305,10 @@ static void stereo_band_mix(const CELTMode *m, celt_norm_t *X, const celt_ener_t
celt_word16_t left, right;
celt_word16_t norm;
#ifdef FIXED_POINT
int shift = celt_zlog2(MAX32(bank[i*C], bank[i*C+1]))-13;
int shift = celt_zlog2(MAX32(bank[i], bank[i+m->nbEBands]))-13;
#endif
left = VSHR32(bank[i*C],shift);
right = VSHR32(bank[i*C+1],shift);
left = VSHR32(bank[i],shift);
right = VSHR32(bank[i+m->nbEBands],shift);
norm = EPSILON + celt_sqrt(EPSILON+MULT16_16(left,left)+MULT16_16(right,right));
a1 = DIV32_16(SHL32(EXTEND32(left),14),norm);
a2 = dir*DIV32_16(SHL32(EXTEND32(right),14),norm);
......@@ -339,10 +339,10 @@ static void point_stereo_mix(const CELTMode *m, celt_norm_t *X, const celt_ener_
celt_word16_t a1, a2;
int j;
#ifdef FIXED_POINT
int shift = celt_zlog2(MAX32(bank[i*C], bank[i*C+1]))-13;
int shift = celt_zlog2(MAX32(bank[i], bank[i+m->nbEBands]))-13;
#endif
left = VSHR32(bank[i*C],shift);
right = VSHR32(bank[i*C+1],shift);
left = VSHR32(bank[i],shift);
right = VSHR32(bank[i+m->nbEBands],shift);
norm = EPSILON + celt_sqrt(EPSILON+MULT16_16(left,left)+MULT16_16(right,right));
a1 = DIV32_16(SHL32(EXTEND32(left),14),norm);
a2 = dir*DIV32_16(SHL32(EXTEND32(right),14),norm);
......
libcelt/celt.c
View file @ 83c26e71
......@@ -763,9 +763,14 @@ int celt_encode_float(CELTEncoder * restrict st, const celt_sig_t * pcm, celt_si
compute_band_energies(st->mode, freq, bandEp);
normalise_bands(st->mode, freq, P, bandEp);
pitch_power = bandEp[0]+bandEp[1]+bandEp[2];
/* Check if we can safely use the pitch (i.e. effective gain
isn't too high) */
curr_power = bandE[0]+bandE[1]+bandE[2];
if (C>1)
{
pitch_power += bandEp[0+st->mode->nbEBands]+bandEp[1+st->mode->nbEBands]+bandEp[2+st->mode->nbEBands];
curr_power += bandE[0+st->mode->nbEBands]+bandE[1+st->mode->nbEBands]+bandE[2+st->mode->nbEBands];
}
/* Check if we can safely use the pitch (i.e. effective gain
isn't too high) */
if ((MULT16_32_Q15(QCONST16(.1f, 15),curr_power) + QCONST32(10.f,ENER_SHIFT) < pitch_power))
{
/* Pitch prediction */
......
libcelt/quant_bands.c
View file @ 83c26e71
......@@ -311,7 +311,7 @@ unsigned quant_coarse_energy(const CELTMode *m, celt_word16_t *eBands, celt_word
SAVE_STACK;
ALLOC(E, m->nbEBands, celt_word16_t);
for (i=0;i<m->nbEBands;i++)
E[i] = eBands[C*i+c];
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);
maxBudget=IMAX(maxBudget,coarse_needed);
RESTORE_STACK;
......@@ -339,7 +339,7 @@ void quant_fine_energy(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *ol
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[C*i+c] = E[i];
eBands[i+c*m->nbEBands] = E[i];
RESTORE_STACK;
}
}
......@@ -364,7 +364,7 @@ void quant_energy_finalise(const CELTMode *m, celt_ener_t *eBands, celt_word16_t
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[C*i+c] = E[i];
eBands[i+c*m->nbEBands] = E[i];
RESTORE_STACK;
}
}
......@@ -412,7 +412,7 @@ void unquant_fine_energy(const CELTMode *m, celt_ener_t *eBands, celt_word16_t *
int i;
unquant_fine_energy_mono(m, E, oldEBands+c*m->nbEBands, fine_quant, dec);
for (i=0;i<m->nbEBands;i++)
eBands[C*i+c] = E[i];
eBands[i+c*m->nbEBands] = E[i];
}
RESTORE_STACK;
}
......@@ -438,7 +438,7 @@ void unquant_energy_finalise(const CELTMode *m, celt_ener_t *eBands, celt_word16
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[C*i+c] = E[i];
eBands[i+c*m->nbEBands] = E[i];
}
RESTORE_STACK;
}
......
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