put the socketclient on the source so it can be shared

csdr/chain/__init__.py

@@ -12,5 +12,8 @@ class Chain(object):
         for w in self.workers:
             w.stop()
 
+    def setInput(self, buffer):
+        self.workers[0].setInput(buffer)
+
     def getBuffer(self):
         return self.buffer

csdr/chain/fft.py

@@ -1,11 +1,10 @@
 from csdr.chain import Chain
-from pycsdr import SocketClient, Fft, LogAveragePower, FftExchangeSides, CompressFftAdpcm
+from pycsdr import Fft, LogAveragePower, FftExchangeSides, CompressFftAdpcm
 
 
 class FftChain(Chain):
-    def __init__(self, port, fft_size, fft_block_size, fft_averages, fft_compression):
+    def __init__(self, fft_size, fft_block_size, fft_averages, fft_compression):
         workers = [
-            SocketClient(port=port),
             Fft(size=fft_size, every_n_samples=int(fft_block_size)),
             LogAveragePower(add_db=-70, fft_size=fft_size, avg_number=fft_averages),
             FftExchangeSides(fft_size=fft_size),