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ac3dsp: simplify extract_exponents() now that it does not need to do clipping.

This commit is contained in:
Justin Ruggles 2011-06-16 16:55:33 -04:00
parent 523b7eba19
commit 8b7b2d6aae
1 changed files with 1 additions and 14 deletions
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15
libavcodec/ac3dsp.c
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@ -164,21 +164,8 @@ static void ac3_extract_exponents_c(uint8_t *exp, int32_t *coef, int nb_coefs)
int i; int i;
for (i = 0; i < nb_coefs; i++) { for (i = 0; i < nb_coefs; i++) {
int e;
int v = abs(coef[i]); int v = abs(coef[i]);
if (v == 0) exp[i] = v ? 23 - av_log2(v) : 24;
e = 24;
else {
e = 23 - av_log2(v);
if (e >= 24) {
e = 24;
coef[i] = 0;
} else if (e < 0) {
e = 0;
coef[i] = av_clip(coef[i], -16777215, 16777215);
}
}
exp[i] = e;
} }
} }