[Discuss-gnuradio] Optional output in sync_block (python).

[Manu T S]

Hello Everyone,

I have an LDPC decoder derived from sync_block in python. This is how define the input and output ports.

        gr.sync_block.__init__(self, name="LDPC Decoder",
                in_sig = [(np.float32, self.N)],
                out_sig = [(np.int32, self.K)])

For BER analysis I would like to have another optional output (a vector of length self.N, (np.int32, self.N) ). How can I specify this *optional* output?

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Manu T S