20 lines
808 B
Python
20 lines
808 B
Python
from csdr.chain import Chain
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from pycsdr import Fft, LogAveragePower, FftExchangeSides, CompressFftAdpcm
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class FftChain(Chain):
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def __init__(self, fft_size, fft_block_size, fft_averages, fft_compression):
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self.fft = Fft(size=fft_size, every_n_samples=int(fft_block_size))
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self.logAveragePower = LogAveragePower(add_db=-70, fft_size=fft_size, avg_number=fft_averages)
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self.fftExchangeSides = FftExchangeSides(fft_size=fft_size)
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workers = [
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self.fft,
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self.logAveragePower,
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self.fftExchangeSides,
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]
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self.compressFftAdpcm = None
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if fft_compression == "adpcm":
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self.compressFftAdpcm = CompressFftAdpcm(fft_size=fft_size)
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workers += [self.compressFftAdpcm]
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super().__init__(*workers)
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