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Re: [Discuss-gnuradio] complex vector output of a block

From: Eric Blossom
Subject: Re: [Discuss-gnuradio] complex vector output of a block
Date: Wed, 9 Jun 2010 12:19:59 -0700
User-agent: Mutt/1.5.20 (2009-08-17)

On Wed, Jun 09, 2010 at 03:40:07AM -0700, Sammour wrote:
> Dear all,
> I'm writing a block that outputs a vector of complex number inheriting from
> gr_sync_block. In my code I wrote:
>       gr_complex *out =(gr_complex *) output_items[0];
>       gr_complex out_vector [N*N];
> where out_vector is the array where the actual output values are stored. I
> copied the data to the pointer using:
>       memcpy(out, out_vector, N*N*sizeof(gr_complex));
> before returning noutput_items from work(). make and make install work fine;
> no error shows up. The problem is when I run the flow graph taking the
> output of my block to a file sink, the values stored are all zeros. 
> Any help or suggestions? 
> Thanks a lot.
> Sam

What are your io_signatures?

Can you describe more clearly what your block is trying to do,
including it's input type, output type, how many inputs it consumes
for each output produced, etc?


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