1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
#!/usr/bin/env python
#
# Copyright 2004,2005,2007 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr
from gnuradio import audio
from gnuradio.eng_arg import eng_float
from argparse import ArgumentParser
class my_top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self)
parser = ArgumentParser()
parser.add_argument("-I", "--audio-input", default="",
help="pcm input device name. E.g., hw:0,0 or /dev/dsp")
parser.add_argument("-O", "--audio-output", default="",
help="pcm output device name. E.g., hw:0,0 or /dev/dsp")
parser.add_argument("-r", "--sample-rate", type=eng_float, default=48000,
help="set sample rate, default=%(default)s")
args = parser.parse_args()
sample_rate = int(args.sample_rate)
src = audio.source(sample_rate, args.audio_input)
dst = audio.sink(sample_rate, args.audio_output)
# Determine the maximum number of outputs on the source and
# maximum number of inputs on the sink, then connect together
# the most channels we can without overlap
nchan = min(src.output_signature().max_streams(),
dst.input_signature().max_streams())
for i in range(nchan):
self.connect((src, i), (dst, i))
if __name__ == '__main__':
try:
my_top_block().run()
except KeyboardInterrupt:
pass
|
