adopt to updated api

csdr/chain/__init__.py

@@ -1,11 +1,10 @@
 from pycsdr.modules import Buffer
-from pycsdr.api import Flow
 
 import logging
 logger = logging.getLogger(__name__)
 
 
-class Chain(Flow):
+class Chain:
     def __init__(self, *workers):
         self.input = None
         self.output = None
@@ -14,7 +13,7 @@ class Chain(Flow):
             self._connect(self.workers[i - 1], self.workers[i])
 
     def _connect(self, w1, w2):
-        buffer = Buffer()
+        buffer = Buffer(w1.getOutputFormat())
         w1.setOutput(buffer)
         w2.setInput(buffer)
 
@@ -36,9 +35,12 @@ class Chain(Flow):
         self.output = buffer
         self.workers[-1].setOutput(buffer)
 
+    def getOutputFormat(self):
+        return self.workers[-1].getOutputFormat()
+
     def pump(self, write):
         if self.output is None:
-            self.setOutput(Buffer())
+            self.setOutput(Buffer(self.getOutputFormat()))
 
         def copy():
             run = True

csdr/chain/fft.py

@@ -1,5 +1,5 @@
 from csdr.chain import Chain
-from pycsdr.modules import Fft, LogPower, LogAveragePower, FftExchangeSides, CompressFftAdpcm
+from pycsdr.modules import Fft, LogPower, LogAveragePower, FftSwap, FftAdpcm
 
 import logging
 logger = logging.getLogger(__name__)
@@ -37,7 +37,7 @@ class FftAverager(Chain):
                 if self.input is not None:
                     self.worker.setInput(self.input)
             else:
-                self.worker.setFftAverages(avg_number=fft_averages)
+                self.worker.setAvgNumber(avg_number=fft_averages)
         self.workers = [self.worker]
         self.fftAverages = fft_averages
 
@@ -53,7 +53,7 @@ class FftChain(Chain):
 
         self.fft = Fft(size=self.size, every_n_samples=self.blockSize)
         self.averager = FftAverager(fft_size=self.size, fft_averages=10)
-        self.fftExchangeSides = FftExchangeSides(fft_size=self.size)
+        self.fftExchangeSides = FftSwap(fft_size=self.size)
         workers = [
             self.fft,
             self.averager,
@@ -61,7 +61,7 @@ class FftChain(Chain):
         ]
         self.compressFftAdpcm = None
         if fft_compression == "adpcm":
-            self.compressFftAdpcm = CompressFftAdpcm(fft_size=self.size)
+            self.compressFftAdpcm = FftAdpcm(fft_size=self.size)
             workers += [self.compressFftAdpcm]
 
         self._updateParameters()