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div -> mul

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Originally committed as revision 10630 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2007-10-01 05:56:30 +00:00
parent 8eb1c1cd5b
commit 286127c5dd
1 changed files with 6 additions and 3 deletions
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9
libavcodec/flacenc.c
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@ -770,7 +770,7 @@ static int lpc_calc_coefs(FlacEncodeContext *s,
compute_lpc_coefs(autoc, max_order, lpc, ref); compute_lpc_coefs(autoc, max_order, lpc, ref);
}else{ }else{
LLSModel m[2]; LLSModel m[2];
double var[MAX_LPC_ORDER+1], eval, weight; double var[MAX_LPC_ORDER+1], weight;
for(pass=0; pass<use_lpc-1; pass++){ for(pass=0; pass<use_lpc-1; pass++){
av_init_lls(&m[pass&1], max_order); av_init_lls(&m[pass&1], max_order);
@ -781,11 +781,14 @@ static int lpc_calc_coefs(FlacEncodeContext *s,
var[j]= samples[i-j]; var[j]= samples[i-j];
if(pass){ if(pass){
double eval, inv, rinv;
eval= av_evaluate_lls(&m[(pass-1)&1], var+1, max_order-1); eval= av_evaluate_lls(&m[(pass-1)&1], var+1, max_order-1);
eval= (512>>pass) + fabs(eval - var[0]); eval= (512>>pass) + fabs(eval - var[0]);
inv = 1/eval;
rinv = sqrt(inv);
for(j=0; j<=max_order; j++) for(j=0; j<=max_order; j++)
var[j]/= sqrt(eval); var[j] *= rinv;
weight += 1/eval; weight += inv;
}else }else
weight++; weight++;