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[Discuss-gnuradio] How to use gr.buffer

From: Zhonghua
Subject: [Discuss-gnuradio] How to use gr.buffer
Date: Mon, 29 Aug 2011 19:04:35 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110805 Thunderbird/3.1.12

Hi every one,
I want to use a buffer to receive streams from my transmitter module, read streams from this buffer and send the obtained streams to my receiver module. I followed the document of "Simple User Manual for Gnuradio 3.1.1" to use buffer as the format: buf=gr.buffer(4000,gr.sizeof_gr_complex). There is an error says "TypeError: Required argument 'link' (pos 3) not found". I checked some information and knew there should be a 'gr_block_sptr link' in the arg lists. But I don't know the detail of usage. I looked up from Google but got nothing helpful. There even has no one instance showing how to use buffer in gnu radio. I can only see some explains that how the buffer be constructed in C++ modules. Anybody used buffer in gnuradio? Thanks for your instruction.


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