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update fft parameters without restarting

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This commit is contained in:
Jakob Ketterl
2020-12-19 17:13:36 +01:00
parent 40c07ebb57
commit 1083d51e18
2 changed files with 38 additions and 9 deletions
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13
csdr/chain/fft.py
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@ -1,9 +1,14 @@
from csdr.chain import Chain
from pycsdr import Fft, LogAveragePower, FftExchangeSides, CompressFftAdpcm
import logging
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)
class FftChain(Chain):
def __init__(self, fft_size, fft_block_size, fft_averages, fft_compression):
logger.debug("new fft: fft_size={0}, fft_block_size={1}, fft_averages={2}, fft_compression={3}".format(fft_size, fft_block_size, fft_averages, fft_compression))
self.fft = Fft(size=fft_size, every_n_samples=int(fft_block_size))
self.logAveragePower = LogAveragePower(add_db=-70, fft_size=fft_size, avg_number=fft_averages)
self.fftExchangeSides = FftExchangeSides(fft_size=fft_size)
@ -17,3 +22,11 @@ class FftChain(Chain):
self.compressFftAdpcm = CompressFftAdpcm(fft_size=fft_size)
workers += [self.compressFftAdpcm]
super().__init__(*workers)
def setFftAverages(self, fft_averages):
logger.debug("setting fft_averages={0}".format(fft_averages))
self.logAveragePower.setFftAverages(avg_number=fft_averages)
def setFftBlockSize(self, fft_block_size):
logger.debug("setting fft_block_size={0}".format(fft_block_size))
self.fft.setEveryNSamples(int(fft_block_size))