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From: | Michael Dickens |
Subject: | Re: [Discuss-gnuradio] Can't create Out of Tree Tagged Stream Blocks? |
Date: | Mon, 22 Jul 2019 13:52:04 -0400 |
User-agent: | Cyrus-JMAP/3.1.6-736-gdfb8e44-fmstable-20190718v2 |
I am working within Gnuradio version 3.7.13.4. As far as I can tell, gr_modtool does not support tagged stream blocks for either python or C++. Trying to make a new tagged stream block in C++ will create QA code, but does not make files for the actual block. For python it will throw a hard error. This appears to be a known issue: https://github.com/gnuradio/gnuradio/issues/2489
Can someone point me to some documentation on how to implement an out of tree module without gr_modtool?
If this is a non-starter, then here is my problem description. I am open to suggestions on how to solve the problem without an OOT tagged stream block:
I need to implement a block that takes two generated signals with defined, very large (~ million sample) packet lengths that are produced at different times, align them on a sample-by-sample basis, and adds them. I know how to do this within a tagged stream block. I am open to ideas on how to do this without tagged streams, but I’m not sure how to do sample alignment of large packets without having them contained in a tagged stream block work function.
Thank you,
DL
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