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cleanup

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This commit is contained in:
Jean-Marc Valin 2018-06-24 03:48:51 -04:00
parent 61c6391c21
commit e018b6f152
2 changed files with 15 additions and 170 deletions
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43
dnn/celt_lpc.c
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@ -225,28 +225,6 @@ int _celt_autocorr(
xptr = xx;
}
shift=0;
#ifdef FIXED_POINT
{
opus_val32 ac0;
ac0 = 1+(n<<7);
if (n&1) ac0 += SHR32(MULT16_16(xptr[0],xptr[0]),9);
for(i=(n&1);i<n;i+=2)
{
ac0 += SHR32(MULT16_16(xptr[i],xptr[i]),9);
ac0 += SHR32(MULT16_16(xptr[i+1],xptr[i+1]),9);
}
shift = celt_ilog2(ac0)-30+10;
shift = (shift)/2;
if (shift>0)
{
for(i=0;i<n;i++)
xx[i] = PSHR32(xptr[i], shift);
xptr = xx;
} else
shift = 0;
}
#endif
celt_pitch_xcorr(xptr, xptr, ac, fastN, lag+1);
for (k=0;k<=lag;k++)
{
@ -254,26 +232,5 @@ int _celt_autocorr(
d = MAC16_16(d, xptr[i], xptr[i-k]);
ac[k] += d;
}
#ifdef FIXED_POINT
shift = 2*shift;
if (shift<=0)
ac[0] += SHL32((opus_int32)1, -shift);
if (ac[0] < 268435456)
{
int shift2 = 29 - EC_ILOG(ac[0]);
for (i=0;i<=lag;i++)
ac[i] = SHL32(ac[i], shift2);
shift -= shift2;
} else if (ac[0] >= 536870912)
{
int shift2=1;
if (ac[0] >= 1073741824)
shift2++;
for (i=0;i<=lag;i++)
ac[i] = SHR32(ac[i], shift2);
shift += shift2;
}
#endif
return shift;
}