On 06/22/2013 08:46 AM, Manu T S wrote:
> I am trying to write code for a block which accepts a vector input and
> spits out a vector output. The block is derived from gr_sync_block.
> From the tutorial on
> OOT<http://gnuradio.org/redmine/projects/gnuradio/wiki/OutOfTreeModules#Adding-the-block-code>I
> have the following information. For a block with single input and
> single
> output the __init__ method is as given below.
>
> def __init__(self): gr.sync_block.__init__(self, name =
> "square3_ff",** in_sig = [numpy.float32],
> out_sig = [numpy.float32])
>
> How do I take in a vector input?
>
That parameter "numpy.float32" is passed into the dtype for the numpy
array. Anything you can pass to numpy as a dtype can be used.
this unit test outputs a stream of float vectors:
class fc32_to_f32_2(gr.sync_block):
def __init__(self):
gr.sync_block.__init__(
self,
name = "fc32_to_f32_2",
in_sig = [numpy.complex64],
out_sig = [(numpy.float32, 2)],
)
def work(self, input_items, output_items):
output_items[0][::,0] = numpy.real(input_items[0])
output_items[0][::,1] = numpy.imag(input_items[0])
return len(output_items[0])
-josh
>
>
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