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hub / github.com/Edzelf/ESP32-Radio / R8FirstPass

Function R8FirstPass

lib/codecs/src/aac_decoder.cpp:2986–3070  ·  view source on GitHub ↗

* Function: R8FirstPass * * Description: radix-8 trivial pass for decimation-in-time FFT * * Inputs: buffer of (bit-reversed) samples * number of R8 butterflies per group (i.e. nfft / 8) * * Outputs: processed samples in same buffer * * Return: none * * Notes: assumes 3 guard bits, gains 1 integer bit * guard bits out = guard bits in - 3

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Callers 1

R4FFTFunction · 0.85

Calls 1

MULSHIFT32Function · 0.70

Tested by

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