63 lines
2.1 KiB
Python
63 lines
2.1 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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#
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# Copyright 2020
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# Federico "Larroca" La Rocca <flarroca@fing.edu.uy>
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#
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# Instituto de Ingenieria Electrica, Facultad de Ingenieria,
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# Universidad de la Republica, Uruguay.
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#
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# This is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# This software is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this software; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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#
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import numpy
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import pmt
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from gnuradio import gr
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class message_to_var(gr.sync_block):
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"""
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docstring for block message_to_var
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"""
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def __init__(self, callback):
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gr.sync_block.__init__(self,
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name="message_to_var",
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in_sig=None, out_sig=None)
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self.callback = callback
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self.message_port_register_in(pmt.intern("port0"))
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self.set_msg_handler(pmt.intern("port0"), self.msg_handler_function)
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def work(self, input_items, output_items):
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return len(input_items[0])
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def msg_handler_function(self, msg):
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if (pmt.is_pair(msg)):
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key = pmt.car(msg) # If is a pair, return the car, otherwise raise wrong_type
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val = pmt.cdr(msg) # If is a pair, return the cdr, otherwise raise wrong_type
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#(pmt::eq(key, pmt::string_to_symbol("ratio"))
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if(pmt.eq(pmt.intern("refresh_rate"),key) or
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pmt.eq(pmt.intern("Hvisible"),key) or
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pmt.eq(pmt.intern("Hblank"),key) or
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pmt.eq(pmt.intern("Vblank"),key) or
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pmt.eq(pmt.intern("Vvisible"),key)):
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if self.callback:
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self.callback(pmt.to_python(val))
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def stop(self):
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return True
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