Resolve "Improve WMOPS performance of IGF_getWhiteSpectralData_ivas()"
Closes #2029 (closed)
For the testcases
./IVAS_cod -ism_sba 4 3 scripts/testv/stvISM1.csv scripts/testv/stvISM2.csv scripts/testv/stvISM3.csv scripts/testv/stvISM4.csv 128000 48 scripts/testv/stvOSBA_4ISM_3OA48c.wav ../../stvOSBA_4ISM_3OA48c.bit
./IVAS_dec binaural 48 ../../stvOSBA_4ISM_3OA48c.bit eins.wav
./IVAS_dec 7_1_4 48 ../../stvOSBA_4ISM_3OA48c.bit zwei.wav
The WMOPS performance improved from
total 1000.00 377.837 401.922 388.294
total 1000.00 364.774 391.736 377.125
To
total 1000.00 376.409 400.606 387.126
total 1000.00 363.298 390.422 375.957