[FFmpeg-devel] [PATCH 06/15] lavc/aacpsy: replace pow(10, x) by exp10(x)

[Ganesh Ajjanagadde]

exp10, recently introduced, is superior for the purpose.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde at gmail.com>
---
 libavcodec/aacpsy.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c
index 71eeb3e..163ee43 100644
--- a/libavcodec/aacpsy.c
+++ b/libavcodec/aacpsy.c
@@ -349,10 +349,10 @@ static av_cold int psy_3gpp_init(FFPsyContext *ctx) {
         for (g = 0; g < ctx->num_bands[j] - 1; g++) {
             AacPsyCoeffs *coeff = &coeffs[g];
             float bark_width = coeffs[g+1].barks - coeffs->barks;
-            coeff->spread_low[0] = pow(10.0, -bark_width * PSY_3GPP_THR_SPREAD_LOW);
-            coeff->spread_hi [0] = pow(10.0, -bark_width * PSY_3GPP_THR_SPREAD_HI);
-            coeff->spread_low[1] = pow(10.0, -bark_width * en_spread_low);
-            coeff->spread_hi [1] = pow(10.0, -bark_width * en_spread_hi);
+            coeff->spread_low[0] = exp10(-bark_width * PSY_3GPP_THR_SPREAD_LOW);
+            coeff->spread_hi [0] = exp10(-bark_width * PSY_3GPP_THR_SPREAD_HI);
+            coeff->spread_low[1] = exp10(-bark_width * en_spread_low);
+            coeff->spread_hi [1] = exp10(-bark_width * en_spread_hi);
             pe_min = bark_pe * bark_width;
             minsnr = exp2(pe_min / band_sizes[g]) - 1.5f;
             coeff->min_snr = av_clipf(1.0f / minsnr, PSY_SNR_25DB, PSY_SNR_1DB);
-- 
2.6.4