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fixed-point: added cheap celt_div() division using a reciprocal

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This commit is contained in:
Jean-Marc Valin 2008-03-22 21:17:45 +11:00
parent ba238d8793
commit 2282383434
4 changed files with 9 additions and 6 deletions
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2
libcelt/vq.c
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@ -378,7 +378,7 @@ void intra_prediction(celt_norm_t *x, celt_mask_t *W, int N, int K, celt_norm_t
xy = MAC16_16(xy, x[j], Y[i+N-j-1]);
yy = MAC16_16(yy, Y[i+N-j-1], Y[i+N-j-1]);
}
score = DIV32(MULT16_16(ROUND16(xy,14),ROUND16(xy,14)), ROUND16(yy,14));
score = celt_div(MULT16_16(ROUND16(xy,14),ROUND16(xy,14)), ROUND16(yy,14));
if (score > best_score)
{
best_score = score;