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2nd bugfix round

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This commit is contained in:
Christian R. Helmrich
2020-01-22 23:00:19 +01:00
parent c11bbd356a
commit 3b14599078
2 changed files with 130 additions and 104 deletions
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43
src/lib/specGapFilling.cpp
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@ -1,5 +1,5 @@
/* specGapFilling.cpp - source file for class with spectral gap filling coding methods
* written by C. R. Helmrich, last modified in 2019 - see License.htm for legal notices
* written by C. R. Helmrich, last modified in 2020 - see License.htm for legal notices
*
* The copyright in this software is being made available under a Modified BSD-Style License
* and comes with ABSOLUTELY NO WARRANTY. This software may be subject to other third-
@ -30,10 +30,14 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
const double* const sfNormFacs = sfbQuantizer.getSfNormTabPtr ();
const uint16_t sfbsPerGrp = grpData.sfbsPerGroup;
const uint16_t windowNfso = noiseFillingStartOffset[grpData.numWindowGroups == 1 ? 0 : 1][nSamplesInFrame >> 10];
uint8_t scaleFactorLimit = 0;
uint8_t scaleFactorLimit = 0;
uint16_t u = 0;
short diff = 0, s = 0;
double magnSum = 0.0;
double magnSum = 0.0;
#if SGF_OPT_SHORT_WIN_CALC
double minGrpMean = (double) UINT_MAX;
double sumGrpMean = 0.0; // for shorts
#endif
if ((coeffMagn == nullptr) || (sfNormFacs == nullptr) || (quantMagn == nullptr) ||
(numSwbShort < MIN_NUM_SWB_SHORT) || (numSwbShort > MAX_NUM_SWB_SHORT) || (nSamplesInFrame > 1024))
@ -53,8 +57,12 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
const uint16_t grpLength = grpData.windowGroupLength[gr];
const uint16_t grpNfso = grpOff[0] + grpLength * windowNfso;
const uint16_t sfbLimit = (grpData.numWindowGroups == 1 ? sfbsPerGrp - (grpOff[sfbsPerGrp] >= nSamplesInFrame ? 1 : 0)
: __min (sfbsPerGrp, numSwbShort - 1)); // no high frequencies
for (uint16_t b = 0; b < sfbLimit; b++) // find first gap-fill SFB and noise_level
: __min (sfbsPerGrp, numSwbShort - 1)); // no high frequencies
#if SGF_OPT_SHORT_WIN_CALC
uint16_t tempNum = u;
double tempSum = magnSum;
#endif
for (uint16_t b = 0; b < sfbLimit; b++) // determine first gap-fill SFB and noise_level
{
const uint16_t sfbStart = grpOff[b];
const uint16_t sfbWidth = grpOff[b + 1] - sfbStart;
@ -122,13 +130,21 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
u++;
}
}
magnSum += sfbMagnSum * sfNormFacs[grpScFacs[b]];
magnSum += sfbMagnSum * sfNormFacs[sFac];
}
}
} // for b
// clip to non-negative value for get function and memset below
if (m_1stNonZeroSfb[gr] < 0) m_1stNonZeroSfb[gr] = 0;
#if SGF_OPT_SHORT_WIN_CALC
if ((grpData.numWindowGroups > 1) && (u > tempNum))
{
tempSum = (magnSum - tempSum) / double (u - tempNum);
if (minGrpMean > tempSum) minGrpMean = tempSum;
sumGrpMean += tempSum; s++;
}
#endif
} // for gr
// determine quantized noise_level from normalized mean magnitude
@ -138,6 +154,17 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
magnSum = 1.0; u = 4; // max. level
}
#if SGF_OPT_SHORT_WIN_CALC
if ((s > 1) && (sumGrpMean > 0.0))
{
magnSum *= sqrt ((minGrpMean * s) / sumGrpMean); // Robots fix
if (magnSum * 64.0 < u * 3.0) // .05
{
magnSum = 3.0; u = 64; // ensure noise_level remains nonzero
}
}
s = 0;
#endif
u = __min (7, uint16_t (14.47118288 + 9.965784285 * log10 (magnSum / (double) u)));
magnSum = pow (2.0, (14 - u) / 3.0); // noiseVal^-1, 23003-3, 7.2
@ -152,7 +179,7 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
const uint32_t* grpRms = &grpData.sfbRmsValues[numSwbShort * gr]; // quant/coder stats
uint8_t* const grpScFacs = &grpData.scaleFactors[numSwbShort * gr];
for (uint16_t b = m_1stGapFillSfb; b < sfbsPerGrp; b++) // calculate scale factors
for (uint16_t b = m_1stGapFillSfb; b < sfbsPerGrp; b++) // get noise-fill scale factors
{
if ((grpRms[b] >> 16) == 0) // the SFB is all-zero quantized
{
@ -205,7 +232,7 @@ uint8_t SpecGapFiller::getSpecGapFillParams (const SfbQuantizer& sfbQuantizer, c
const uint32_t* grpRms = &grpData.sfbRmsValues[numSwbShort * gr]; // quant/coder stats
uint8_t* const grpScFacs = &grpData.scaleFactors[numSwbShort * gr];
for (uint16_t b = m_1stGapFillSfb; b < sfbsPerGrp; b++) // account f. noise_offset
for (uint16_t b = m_1stGapFillSfb; b < sfbsPerGrp; b++) // account for the noise_offset
{
if ((grpRms[b] >> 16) == 0) // the SFB is all-zero quantized
{