diff options
| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-09-16 10:15:54 +0200 |
|---|---|---|
| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-09-16 10:15:54 +0200 |
| commit | ac10ac25317d2027e21b1390054e47201e7aec98 (patch) | |
| tree | 4b1114b5806709d99634c1b1571e3fe1ed0a7417 /fdk-aac/libSBRdec/src/psdec.cpp | |
| parent | c9b14925962bf6ca3978dc07bf8db32ada7003c5 (diff) | |
| download | ODR-AudioEnc-ac10ac25317d2027e21b1390054e47201e7aec98.tar.gz ODR-AudioEnc-ac10ac25317d2027e21b1390054e47201e7aec98.tar.bz2 ODR-AudioEnc-ac10ac25317d2027e21b1390054e47201e7aec98.zip | |
Update fdk-aac
This corresponds to 9718203 in https://github.com/Opendigitalradio/fdk-aac
Diffstat (limited to 'fdk-aac/libSBRdec/src/psdec.cpp')
| -rw-r--r-- | fdk-aac/libSBRdec/src/psdec.cpp | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/fdk-aac/libSBRdec/src/psdec.cpp b/fdk-aac/libSBRdec/src/psdec.cpp index b31b310..13a21bf 100644 --- a/fdk-aac/libSBRdec/src/psdec.cpp +++ b/fdk-aac/libSBRdec/src/psdec.cpp @@ -325,11 +325,11 @@ void initSlotBasedRotation( int env, int usb) { INT group = 0; INT bin = 0; - INT noIidSteps, noFactors; + INT noIidSteps; FIXP_SGL invL; FIXP_DBL ScaleL, ScaleR; - FIXP_DBL Alpha, Beta, AlphasValue; + FIXP_DBL Alpha, Beta; FIXP_DBL h11r, h12r, h21r, h22r; const FIXP_DBL *PScaleFactors; @@ -337,11 +337,9 @@ void initSlotBasedRotation( if (h_ps_d->bsData[h_ps_d->processSlot].mpeg.bFineIidQ) { PScaleFactors = ScaleFactorsFine; /* values are shiftet right by one */ noIidSteps = NO_IID_STEPS_FINE; - noFactors = NO_IID_LEVELS_FINE; } else { PScaleFactors = ScaleFactors; /* values are shiftet right by one */ noIidSteps = NO_IID_STEPS; - noFactors = NO_IID_LEVELS; } /* dequantize and decode */ @@ -360,23 +358,17 @@ void initSlotBasedRotation( /* ScaleR and ScaleL are scaled by 1 shift right */ - ScaleL = ScaleR = 0; - if (noIidSteps + h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] >= 0 && noIidSteps + h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] < noFactors) - ScaleR = PScaleFactors[noIidSteps + h_ps_d->specificTo.mpeg.pCoef - ->aaIidIndexMapped[env][bin]]; - if (noIidSteps - h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] >= 0 && noIidSteps - h_ps_d->specificTo.mpeg.pCoef->aaIidIndexMapped[env][bin] < noFactors) - ScaleL = PScaleFactors[noIidSteps - h_ps_d->specificTo.mpeg.pCoef - ->aaIidIndexMapped[env][bin]]; - - AlphasValue = 0; - if (h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin] >= 0) - AlphasValue = Alphas[h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin]]; + ScaleR = PScaleFactors[noIidSteps + h_ps_d->specificTo.mpeg.pCoef + ->aaIidIndexMapped[env][bin]]; + ScaleL = PScaleFactors[noIidSteps - h_ps_d->specificTo.mpeg.pCoef + ->aaIidIndexMapped[env][bin]]; + Beta = fMult( - fMult(AlphasValue, + fMult(Alphas[h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin]], (ScaleR - ScaleL)), FIXP_SQRT05); Alpha = - AlphasValue >> 1; + Alphas[h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin]] >> 1; /* Alpha and Beta are now both scaled by 2 shifts right */ |