Commit 05974935 authored by Jean-Marc Valin's avatar Jean-Marc Valin
Browse files

optimisation: Making use of restrict in find_spectral_pitch() to disambiguate

X and Y.
parent 49134381
......@@ -102,15 +102,17 @@ static void normalise16(celt_word16_t *x, int len, celt_word16_t val)
void find_spectral_pitch(kiss_fftr_cfg fft, const struct PsyDecay *decay, const celt_sig_t * restrict x, const celt_sig_t * restrict y, const celt_word16_t * restrict window, int overlap, int lag, int len, int C, int *pitch)
{
int c, i;
VARDECL(celt_word16_t, X);
VARDECL(celt_word16_t, Y);
VARDECL(celt_word16_t, _X);
VARDECL(celt_word16_t, _Y);
VARDECL(celt_mask_t, curve);
celt_word16_t * restrict X, * restrict Y;
int n2;
int L2;
SAVE_STACK;
n2 = lag>>1;
L2 = len>>1;
ALLOC(X, lag, celt_word16_t);
ALLOC(_X, lag, celt_word16_t);
X = _X;
ALLOC(curve, n2, celt_mask_t);
for (i=0;i<lag;i++)
......@@ -141,7 +143,8 @@ void find_spectral_pitch(kiss_fftr_cfg fft, const struct PsyDecay *decay, const
compute_masking(decay, X, curve, lag);
/* Deferred allocation to reduce peak stack usage */
ALLOC(Y, lag, celt_word16_t);
ALLOC(_Y, lag, celt_word16_t);
Y = _Y;
for (i=0;i<lag;i++)
Y[i] = 0;
/* Sum all channels of the past audio and copy into Y in bit-reverse order */
......
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