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radio_streaming_Pi.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# SPDX-License-Identifier: GPL-3.0
#
# GNU Radio Python Flow Graph
# Title: radio_streaming_Pi
# GNU Radio version: v3.8.5.0-5-g982205bd
from gnuradio import analog
from gnuradio import filter
from gnuradio.filter import firdes
from gnuradio import gr
import sys
import signal
from argparse import ArgumentParser
from gnuradio.eng_arg import eng_float, intx
from gnuradio import eng_notation
from gnuradio import zeromq
import epy_module_server # embedded python module
import osmosdr
import time
import threading
class radio_streaming_Pi(gr.top_block):
def __init__(self):
gr.top_block.__init__(self, "radio_streaming_Pi")
self._lock = threading.RLock()
##################################################
# Variables
##################################################
self.station = station = 96.9e6
self.samp_rate = samp_rate = 1.152e6
##################################################
# Blocks
##################################################
self.zeromq_pub_sink_0 = zeromq.pub_sink(gr.sizeof_float, 1, 'tcp://192.168.137.8:5555', 100, False, -1)
self.osmosdr_source_0 = osmosdr.source(
args="numchan=" + str(1) + " " + ""
)
self.osmosdr_source_0.set_time_unknown_pps(osmosdr.time_spec_t())
self.osmosdr_source_0.set_sample_rate(samp_rate)
self.osmosdr_source_0.set_center_freq(station, 0)
self.osmosdr_source_0.set_freq_corr(0, 0)
self.osmosdr_source_0.set_dc_offset_mode(0, 0)
self.osmosdr_source_0.set_iq_balance_mode(0, 0)
self.osmosdr_source_0.set_gain_mode(False, 0)
self.osmosdr_source_0.set_gain(10, 0)
self.osmosdr_source_0.set_if_gain(20, 0)
self.osmosdr_source_0.set_bb_gain(20, 0)
self.osmosdr_source_0.set_antenna('', 0)
self.osmosdr_source_0.set_bandwidth(0, 0)
self.low_pass_filter_0 = filter.fir_filter_ccf(
6,
firdes.low_pass(
1,
samp_rate,
96e3,
48e3,
firdes.WIN_HAMMING,
6.76))
self.analog_wfm_rcv_0 = analog.wfm_rcv(
quad_rate=192e3,
audio_decimation=4,
)
##################################################
# Connections
##################################################
self.connect((self.analog_wfm_rcv_0, 0), (self.zeromq_pub_sink_0, 0))
self.connect((self.low_pass_filter_0, 0), (self.analog_wfm_rcv_0, 0))
self.connect((self.osmosdr_source_0, 0), (self.low_pass_filter_0, 0))
def get_station(self):
return self.station
def set_station(self, station):
with self._lock:
self.station = station
self.osmosdr_source_0.set_center_freq(self.station, 0)
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
with self._lock:
self.samp_rate = samp_rate
self.low_pass_filter_0.set_taps(firdes.low_pass(1, self.samp_rate, 96e3, 48e3, firdes.WIN_HAMMING, 6.76))
self.osmosdr_source_0.set_sample_rate(self.samp_rate)
def snipfcn_snippet_0(self):
print("Starting server")
#import threading
threading.Thread(target=epy_module_server.server,args=(self,)).start()
def snippets_main_after_init(tb):
snipfcn_snippet_0(tb)
def main(top_block_cls=radio_streaming_Pi, options=None):
tb = top_block_cls()
snippets_main_after_init(tb)
def sig_handler(sig=None, frame=None):
tb.stop()
tb.wait()
sys.exit(0)
signal.signal(signal.SIGINT, sig_handler)
signal.signal(signal.SIGTERM, sig_handler)
tb.start()
tb.wait()
if __name__ == '__main__':
main()