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lavc/nellymoserdec: replace pow by exp2

Browse source 
exp2 suffices here.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-12-09 19:00:22 -05:00
parent 93afb338a4
commit a0ddebfedf
1 changed files with 1 additions and 1 deletions
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2
libavcodec/nellymoserdec.c
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@ -75,7 +75,7 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
for (i=0 ; i<NELLY_BANDS ; i++) {
if (i > 0)
val += ff_nelly_delta_table[get_bits(&s->gb, 5)];
pval = -pow(2, val/2048) * s->scale_bias;
pval = -exp2(val/2048) * s->scale_bias;
for (j = 0; j < ff_nelly_band_sizes_table[i]; j++) {
*bptr++ = val;
*pptr++ = pval;