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Renamed mix_pitch_and_residual() to normalise_residual(), after minor

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simplification.
This commit is contained in:
Jean-Marc Valin 2009-10-07 06:56:03 -04:00
parent f6dc1eba26
commit f7a1e165aa
2 changed files with 5 additions and 5 deletions
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2
libcelt/bands.c
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@ -315,7 +315,7 @@ void apply_pitch(const CELTMode *m, celt_sig_t *X, const celt_sig_t *P, int gain
celt_word16_t gg = gain; celt_word16_t gg = gain;
for (j=0;j<len;j++) for (j=0;j<len;j++)
{ {
X[j+c*N] += SHL(MULT16_32_Q15(gg,P[j+c*N]),1); X[j+c*N] += SHL32(MULT16_32_Q15(gg,P[j+c*N]),1);
gg = ADD16(gg, delta); gg = ADD16(gg, delta);
} }
} }

8
libcelt/vq.c
View file

@ -99,7 +99,7 @@ static void exp_rotation(celt_norm_t *X, int len, int dir, int stride, int K)
/** Takes the pitch vector and the decoded residual vector, computes the gain /** Takes the pitch vector and the decoded residual vector, computes the gain
that will give ||p+g*y||=1 and mixes the residual with the pitch. */ that will give ||p+g*y||=1 and mixes the residual with the pitch. */
static void mix_pitch_and_residual(int * restrict iy, celt_norm_t * restrict X, int N, int K, celt_word32_t Ryy) static void normalise_residual(int * restrict iy, celt_norm_t * restrict X, int N, int K, celt_word32_t Ryy)
{ {
int i; int i;
celt_word32_t g; celt_word32_t g;
@ -108,7 +108,7 @@ static void mix_pitch_and_residual(int * restrict iy, celt_norm_t * restrict X,
i=0; i=0;
do do
X[i] = MULT16_32_P15(g, SHL32(EXTEND32(iy[i]),14)); X[i] = SHR16(MULT16_16_16(g, iy[i]),1);
while (++i < N); while (++i < N);
} }
@ -270,7 +270,7 @@ void alg_quant(celt_norm_t *X, int N, int K, int spread, ec_enc *enc)
/* Recompute the gain in one pass to reduce the encoder-decoder mismatch /* Recompute the gain in one pass to reduce the encoder-decoder mismatch
due to the recursive computation used in quantisation. */ due to the recursive computation used in quantisation. */
mix_pitch_and_residual(iy, X, N, K, EXTRACT16(SHR32(yy,2*yshift))); normalise_residual(iy, X, N, K, EXTRACT16(SHR32(yy,2*yshift)));
if (spread) if (spread)
exp_rotation(X, N, -1, spread, K); exp_rotation(X, N, -1, spread, K);
RESTORE_STACK; RESTORE_STACK;
@ -293,7 +293,7 @@ void alg_unquant(celt_norm_t *X, int N, int K, int spread, ec_dec *dec)
do { do {
Ryy = MAC16_16(Ryy, iy[i], iy[i]); Ryy = MAC16_16(Ryy, iy[i], iy[i]);
} while (++i < N); } while (++i < N);
mix_pitch_and_residual(iy, X, N, K, Ryy); normalise_residual(iy, X, N, K, Ryy);
if (spread) if (spread)
exp_rotation(X, N, -1, spread, K); exp_rotation(X, N, -1, spread, K);
RESTORE_STACK; RESTORE_STACK;