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Re: [Discuss-gnuradio] status of stream tags

From: Josh Blum
Subject: Re: [Discuss-gnuradio] status of stream tags
Date: Wed, 21 Sep 2011 14:18:55 -0700
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On 09/21/2011 09:55 AM, Feng Andrew Ge wrote:
> Josh, thanks for the information. Where can I get those few
> implementations using stream tags?
If you werent following the other discussions, there is a uhd source
tagging capability implemented on this branch:


Sent from i myPhone

> Andrew
> On 09/21/2011 12:31 PM, Josh Blum wrote:
>> On 09/21/2011 09:10 AM, Feng Andrew Ge wrote:
>>> Josh,
>>> I noticed that there are many useful commands enabled by UHD. For
>>> example, they are used in uhd/host/examples in C++. I am wondering
>>> whether we have correspondence in Python. In particular, can I initiate
>>> the stream command in python?
>>> I'd like to start GNU Radio, initiate USRP through UHD (which is
>>> connected to some GNU Radio blocks), then do some examples similar to
>>> those in uhd/host/examples, including latency_test.cpp. Would you kindly
>>> offer any suggestions regarding the above setting?
>> Take a look at gr-uhd/include. You can call all those API functions from
>> python. However streaming is taken over by the gnuradio scheduler.
>> To handle tasks involving metadata you will need to use "stream tags".
>> We have not pulled stream tags functionality into mainline gr-uhd yet,
>> but there are a few implementations around... This might be a useful
>> discussion to bring to the gnuradio mailing list.
>> -josh
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