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opus_celt: do not use double precision exp2

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Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit is contained in:
Rostislav Pehlivanov 2017-06-22 22:37:53 +01:00
parent 505cb8e390
commit 7e98da9c4f
1 changed files with 2 additions and 2 deletions
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libavcodec/opus_celt.c
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@ -485,7 +485,7 @@ static void celt_denormalize(CeltFrame *f, CeltBlock *block, float *data)
for (i = f->start_band; i < f->end_band; i++) {
float *dst = data + (ff_celt_freq_bands[i] << f->size);
float norm = exp2(block->energy[i] + ff_celt_mean_energy[i]);
float norm = exp2f(block->energy[i] + ff_celt_mean_energy[i]);
for (j = 0; j < ff_celt_freq_range[i] << f->size; j++)
dst[j] *= norm;
@ -664,7 +664,7 @@ static void process_anticollapse(CeltFrame *f, CeltBlock *block, float *X)
/* r needs to be multiplied by 2 or 2*sqrt(2) depending on LM because
short blocks don't have the same energy as long */
r = exp2(1 - Ediff);
r = exp2f(1 - Ediff);
if (f->size == 3)
r *= M_SQRT2;
r = FFMIN(thresh, r) * sqrt_1;