diff options
Diffstat (limited to 'libSBRdec/src')
| -rw-r--r-- | libSBRdec/src/psdec.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libSBRdec/src/psdec.cpp b/libSBRdec/src/psdec.cpp index 13a21bf..1f8bd25 100644 --- a/libSBRdec/src/psdec.cpp +++ b/libSBRdec/src/psdec.cpp @@ -329,7 +329,7 @@ void initSlotBasedRotation( FIXP_SGL invL; FIXP_DBL ScaleL, ScaleR; - FIXP_DBL Alpha, Beta; + FIXP_DBL Alpha, Beta, AlphasValue; FIXP_DBL h11r, h12r, h21r, h22r; const FIXP_DBL *PScaleFactors; @@ -363,12 +363,15 @@ void initSlotBasedRotation( 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]]; Beta = fMult( - fMult(Alphas[h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin]], + fMult(AlphasValue, (ScaleR - ScaleL)), FIXP_SQRT05); Alpha = - Alphas[h_ps_d->specificTo.mpeg.pCoef->aaIccIndexMapped[env][bin]] >> 1; + AlphasValue >> 1; /* Alpha and Beta are now both scaled by 2 shifts right */ |