Author: alexc
Date: Thu Jun 11 18:36:48 2009
New Revision: 4432
Log:
Hoist IQ in the alternate quantize_band_cost()
Modified:
aacenc/aaccoder.c
Modified: aacenc/aaccoder.c
==============================================================================
--- aacenc/aaccoder.c Thu Jun 11 18:18:50 2009 (r4431)
+++ aacenc/aaccoder.c Thu Jun 11 18:36:48 2009 (r4432)
@@ -308,6 +308,7 @@ static float quantize_band_cost(const fl
const float lambda, const float uplim, int
*bits)
{
const float Q = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS +
SCALE_DIV_512];
+ const float IQ = 1.0/Q;
int i, j, k;
float cost = 0;
const int dim = cb < FIRST_PAIR_BT ? 4 : 2;
@@ -340,7 +341,7 @@ static float quantize_band_cost(const fl
di = t - 165140.0f;
curbits += 21;
}else{
- int c = quant(t, 1.0/Q);
+ int c = quant(t, IQ);
di = t - c*cbrt(c)*Q;
curbits += av_log2(c)*2 - 4 + 1;
}
_______________________________________________
FFmpeg-soc mailing list
FFmpeg-soc@mplayerhq.hu
https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
