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meise/numpy_version.py

Created January 27, 2016 16:36
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extract floats from gr message queue without numpy
Raw
numpy_version.py
msg = tb.msgq_out.delete_head()
msg_string = msg.to_string()
samples = np.fromstring(msg_string, dtype='float32')
Raw
python_version.py
# pull from message queue
msg = tb.msgq_out.delete_head()
msg_string = msg.to_string()
samples = []
# extract floats from msg string
# it is slow. very slow! :/
for i in range(0,len(sample),4):
# unpack sample to have a tuples
unpacked = struct.unpack_from('f', sample[i:i+4])
samples.append(unpacked[0])
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