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lavc/wmadec: replace pow(10,x) by ff_exp10(x)

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Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde
2015-12-23 10:34:22 -08:00
parent a0ea801dc3
commit 62765c0014
1 changed files with 3 additions and 2 deletions
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5
libavcodec/wmadec.c
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@ -34,6 +34,7 @@
*/ */
#include "libavutil/attributes.h" #include "libavutil/attributes.h"
#include "libavutil/internal.h"
#include "avcodec.h" #include "avcodec.h"
#include "internal.h" #include "internal.h"
@ -626,7 +627,7 @@ static int wma_decode_block(WMACodecContext *s)
coefs1 = s->coefs1[ch]; coefs1 = s->coefs1[ch];
exponents = s->exponents[ch]; exponents = s->exponents[ch];
esize = s->exponents_bsize[ch]; esize = s->exponents_bsize[ch];
mult = pow(10, total_gain * 0.05) / s->max_exponent[ch]; mult = ff_exp10(total_gain * 0.05) / s->max_exponent[ch];
mult *= mdct_norm; mult *= mdct_norm;
coefs = s->coefs[ch]; coefs = s->coefs[ch];
if (s->use_noise_coding) { if (s->use_noise_coding) {
@ -674,7 +675,7 @@ static int wma_decode_block(WMACodecContext *s)
/* use noise with specified power */ /* use noise with specified power */
mult1 = sqrt(exp_power[j] / exp_power[last_high_band]); mult1 = sqrt(exp_power[j] / exp_power[last_high_band]);
/* XXX: use a table */ /* XXX: use a table */
mult1 = mult1 * pow(10, s->high_band_values[ch][j] * 0.05); mult1 = mult1 * ff_exp10(s->high_band_values[ch][j] * 0.05);
mult1 = mult1 / (s->max_exponent[ch] * s->noise_mult); mult1 = mult1 / (s->max_exponent[ch] * s->noise_mult);
mult1 *= mdct_norm; mult1 *= mdct_norm;
for (i = 0; i < n; i++) { for (i = 0; i < n; i++) {