Re: [Discuss-gnuradio] How to "declare_sample_delay" in C++?

[khalid.el-darymli]

Hi Martin,

Thanks for the answer. My confusion is that when you generate, for example, a multi-stage polyphase decimator in GRC, a 'declare_sample_delay(0)' code will be generated for each decimation block. When I go from Python to C++ I thought I should do the same. Now, since the default is zero, does that mean the 'declare_sample_delay(0)' codes generated by GRC are redundant?

Thank you.

Best wishes,

Khalid

Message: 7
Date: Fri, 22 May 2015 12:00:39 -0700
From: Martin Braun <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] How to "declare_sample_delay" in C++?
Message-ID: <address@hidden>
Content-Type: text/plain; charset=windows-1252

Not sure what you're asking, the command is wrapped from C++ to Python,
and hence the same in both domains (see also
http://gnuradio.org/doc/doxygen/classgr_1_1block.html#acad5d6e62ea885cb77d19f72451581c2).

Also, 0 is the default.

M

On 22.05.2015 11:26, khalid.el-darymli wrote:
> Hi list,
>
> I am doing some (polyphase) decimation with GNURadio in C++. I
> constructed my filters, I wrote some wrapper, and my script compiles
> perfectly. However, I am a bit unclear about "declare_sample_delay".
>
> Assume that I have the block: pfb_decimator_ccf_0_5. To set the sample
> delay for this block to 0, in python, one uses:
>
> self.pfb_decimator_ccf_0_5.declare_sample_delay(0)
>
>
> What is the proper way to do the same command in C++?
>
>
> Thanks in advance.
>
> Best wishes,
> Khalid
>
>
>
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