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Revert r14218. FFMAX is a macro, so

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sum = FFMAX(1, scalar_product(...));
might calculate the scalar product twice, which is slower.

Originally committed as revision 14230 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-07-14 14:41:01 +00:00
parent e44bbf623e
commit 0e3510a31f
1 changed files with 3 additions and 1 deletions
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libavcodec/ra288.c
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@ -69,7 +69,9 @@ static void decode(Real288_internal *glob, float gain, int cb_coef)
for (x=0; x < 5; x++) for (x=0; x < 5; x++)
buffer[x] = codetable[cb_coef][x] * sumsum; buffer[x] = codetable[cb_coef][x] * sumsum;
sum = FFMAX(1, scalar_product_float(buffer, buffer, 5) / 5); sum = scalar_product_float(buffer, buffer, 5) / 5;
sum = FFMAX(sum, 1);
/* shift and store */ /* shift and store */
memmove(glob->lhist, glob->lhist - 1, 10 * sizeof(*glob->lhist)); memmove(glob->lhist, glob->lhist - 1, 10 * sizeof(*glob->lhist));