ref: 1c80f649601a4f7250a84d27903b564c6594596c
parent: 120800f8fa478d75ad9f94d91dae775386c6b0d5
author: Jean-Marc Valin <[email protected]>
date: Fri Dec 2 07:38:32 EST 2011
All variables named "bank" renamed to "bandE" to avoid problems on SHARC SHARK compiler treaks "bank" as a reserved keyword -- go figure.
--- a/celt/bands.c
+++ b/celt/bands.c
@@ -75,7 +75,7 @@
#ifdef FIXED_POINT
/* Compute the amplitude (sqrt energy) in each of the bands */
-void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bank, int end, int C, int M)
+void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bandE, int end, int C, int M)
{int i, c, N;
const opus_int16 *eBands = m->eBands;
@@ -101,11 +101,11 @@
} while (++j<M*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*m->nbEBands] = EPSILON+VSHR32(EXTEND32(celt_sqrt(sum)),-shift);
+ bandE[i+c*m->nbEBands] = EPSILON+VSHR32(EXTEND32(celt_sqrt(sum)),-shift);
} else {- bank[i+c*m->nbEBands] = EPSILON;
+ bandE[i+c*m->nbEBands] = EPSILON;
}
- /*printf ("%f ", bank[i+c*m->nbEBands]);*/+ /*printf ("%f ", bandE[i+c*m->nbEBands]);*/}
} while (++c<C);
/*printf ("\n");*/@@ -112,7 +112,7 @@
}
/* Normalise each band such that the energy is one. */
-void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bank, int end, int C, int M)
+void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bandE, int end, int C, int M)
{int i, c, N;
const opus_int16 *eBands = m->eBands;
@@ -122,8 +122,8 @@
opus_val16 g;
int j,shift;
opus_val16 E;
- shift = celt_zlog2(bank[i+c*m->nbEBands])-13;
- E = VSHR32(bank[i+c*m->nbEBands], shift);
+ shift = celt_zlog2(bandE[i+c*m->nbEBands])-13;
+ E = VSHR32(bandE[i+c*m->nbEBands], shift);
g = EXTRACT16(celt_rcp(SHL32(E,3)));
j=M*eBands[i]; do {X[j+c*N] = MULT16_16_Q15(VSHR32(freq[j+c*N],shift-1),g);
@@ -134,7 +134,7 @@
#else /* FIXED_POINT */
/* Compute the amplitude (sqrt energy) in each of the bands */
-void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bank, int end, int C, int M)
+void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bandE, int end, int C, int M)
{int i, c, N;
const opus_int16 *eBands = m->eBands;
@@ -146,8 +146,8 @@
opus_val32 sum = 1e-27f;
for (j=M*eBands[i];j<M*eBands[i+1];j++)
sum += X[j+c*N]*X[j+c*N];
- bank[i+c*m->nbEBands] = celt_sqrt(sum);
- /*printf ("%f ", bank[i+c*m->nbEBands]);*/+ bandE[i+c*m->nbEBands] = celt_sqrt(sum);
+ /*printf ("%f ", bandE[i+c*m->nbEBands]);*/}
} while (++c<C);
/*printf ("\n");*/@@ -154,7 +154,7 @@
}
/* Normalise each band such that the energy is one. */
-void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bank, int end, int C, int M)
+void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bandE, int end, int C, int M)
{int i, c, N;
const opus_int16 *eBands = m->eBands;
@@ -163,7 +163,7 @@
for (i=0;i<end;i++)
{int j;
- opus_val16 g = 1.f/(1e-27f+bank[i+c*m->nbEBands]);
+ opus_val16 g = 1.f/(1e-27f+bandE[i+c*m->nbEBands]);
for (j=M*eBands[i];j<M*eBands[i+1];j++)
X[j+c*N] = freq[j+c*N]*g;
}
@@ -173,7 +173,7 @@
#endif /* FIXED_POINT */
/* De-normalise the energy to produce the synthesis from the unit-energy bands */
-void denormalise_bands(const CELTMode *m, const celt_norm * restrict X, celt_sig * restrict freq, const celt_ener *bank, int end, int C, int M)
+void denormalise_bands(const CELTMode *m, const celt_norm * restrict X, celt_sig * restrict freq, const celt_ener *bandE, int end, int C, int M)
{int i, c, N;
const opus_int16 *eBands = m->eBands;
@@ -187,7 +187,7 @@
for (i=0;i<end;i++)
{int j, band_end;
- opus_val32 g = SHR32(bank[i+c*m->nbEBands],1);
+ opus_val32 g = SHR32(bandE[i+c*m->nbEBands],1);
j=M*eBands[i];
band_end = M*eBands[i+1];
do {@@ -291,7 +291,7 @@
}
}
-static void intensity_stereo(const CELTMode *m, celt_norm *X, celt_norm *Y, const celt_ener *bank, int bandID, int N)
+static void intensity_stereo(const CELTMode *m, celt_norm *X, celt_norm *Y, const celt_ener *bandE, int bandID, int N)
{int i = bandID;
int j;
@@ -299,10 +299,10 @@
opus_val16 left, right;
opus_val16 norm;
#ifdef FIXED_POINT
- int shift = celt_zlog2(MAX32(bank[i], bank[i+m->nbEBands]))-13;
+ int shift = celt_zlog2(MAX32(bandE[i], bandE[i+m->nbEBands]))-13;
#endif
- left = VSHR32(bank[i],shift);
- right = VSHR32(bank[i+m->nbEBands],shift);
+ left = VSHR32(bandE[i],shift);
+ right = VSHR32(bandE[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 = DIV32_16(SHL32(EXTEND32(right),14),norm);
--- a/celt/bands.h
+++ b/celt/bands.h
@@ -41,9 +41,9 @@
* @param X Spectrum
* @param bands Square root of the energy for each band (returned)
*/
-void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bands, int end, int C, int M);
+void compute_band_energies(const CELTMode *m, const celt_sig *X, celt_ener *bandE, int end, int C, int M);
-/*void compute_noise_energies(const CELTMode *m, const celt_sig *X, const opus_val16 *tonality, celt_ener *bank);*/
+/*void compute_noise_energies(const CELTMode *m, const celt_sig *X, const opus_val16 *tonality, celt_ener *bandE);*/
/** Normalise each band of X such that the energy in each band is
equal to 1
@@ -51,7 +51,7 @@
* @param X Spectrum (returned normalised)
* @param bands Square root of the energy for each band
*/
-void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bands, int end, int C, int M);
+void normalise_bands(const CELTMode *m, const celt_sig * restrict freq, celt_norm * restrict X, const celt_ener *bandE, int end, int C, int M);
/** Denormalise each band of X to restore full amplitude
* @param m Mode data
@@ -58,7 +58,7 @@
* @param X Spectrum (returned de-normalised)
* @param bands Square root of the energy for each band
*/
-void denormalise_bands(const CELTMode *m, const celt_norm * restrict X, celt_sig * restrict freq, const celt_ener *bands, int end, int C, int M);
+void denormalise_bands(const CELTMode *m, const celt_norm * restrict X, celt_sig * restrict freq, const celt_ener *bandE, int end, int C, int M);
#define SPREAD_NONE (0)
#define SPREAD_LIGHT (1)