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Code Issues Releases Activity

Simplify rms(): merge a few operations in the same statement

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Originally committed as revision 14639 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-08-06 05:11:46 +00:00
parent b4d46e8c06
commit 2f1cad0e58
1 changed files with 2 additions and 5 deletions
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7
libavcodec/ra144.c
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@ -154,7 +154,7 @@ static unsigned int rms(const int *data)
{ {
int i; int i;
unsigned int res = 0x10000; unsigned int res = 0x10000;
int b = 0; int b = 10;
for (i=0; i < 10; i++) { for (i=0; i < 10; i++) {
res = (((0x1000000 - data[i]*data[i]) >> 12) * res) >> 12; res = (((0x1000000 - data[i]*data[i]) >> 12) * res) >> 12;
@ -168,10 +168,7 @@ static unsigned int rms(const int *data)
} }
} }
res = t_sqrt(res); return t_sqrt(res) >> b;
res >>= (b + 10);
return res;
} }
static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs, static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs,