comparison examples/01-Basics/passthrough/main.cpp @ 468:85cf9c0da052 prerelease

merge
author Giulio Moro <giuliomoro@yahoo.it>
date Mon, 20 Jun 2016 17:08:02 +0100
parents 8fcfbfb32aa0
children
comparison
equal deleted inserted replaced
467:03a2cd5f151b 468:85cf9c0da052
1 /*
2 ____ _____ _ _
3 | __ )| ____| | / \
4 | _ \| _| | | / _ \
5 | |_) | |___| |___ / ___ \
6 |____/|_____|_____/_/ \_\
7
8 The platform for ultra-low latency audio and sensor processing
9
10 http://bela.io
11
12 A project of the Augmented Instruments Laboratory within the
13 Centre for Digital Music at Queen Mary University of London.
14 http://www.eecs.qmul.ac.uk/~andrewm
15
16 (c) 2016 Augmented Instruments Laboratory: Andrew McPherson,
17 Astrid Bin, Liam Donovan, Christian Heinrichs, Robert Jack,
18 Giulio Moro, Laurel Pardue, Victor Zappi. All rights reserved.
19
20 The Bela software is distributed under the GNU Lesser General Public License
21 (LGPL 3.0), available here: https://www.gnu.org/licenses/lgpl-3.0.txt
22 */
23
24 #include <iostream>
25 #include <cstdlib>
26 #include <libgen.h>
27 #include <signal.h>
28 #include <getopt.h>
29 #include <Bela.h>
30
31 using namespace std;
32
33 // Handle Ctrl-C by requesting that the audio rendering stop
34 void interrupt_handler(int var)
35 {
36 gShouldStop = true;
37 }
38
39 // Print usage information
40 void usage(const char * processName)
41 {
42 cerr << "Usage: " << processName << " [options]" << endl;
43
44 Bela_usage();
45
46 cerr << " --help [-h]: Print this menu\n";
47 }
48
49 int main(int argc, char *argv[])
50 {
51 BelaInitSettings settings; // Standard audio settings
52
53 struct option customOptions[] =
54 {
55 {"help", 0, NULL, 'h'},
56 {NULL, 0, NULL, 0}
57 };
58
59 // Set default settings
60 Bela_defaultSettings(&settings);
61
62 // Parse command-line arguments
63 while (1) {
64 int c;
65 if ((c = Bela_getopt_long(argc, argv, "h", customOptions, &settings)) < 0)
66 break;
67 switch (c) {
68 case 'h':
69 usage(basename(argv[0]));
70 exit(0);
71 case '?':
72 default:
73 usage(basename(argv[0]));
74 exit(1);
75 }
76 }
77
78 // Initialise the PRU audio device
79 if(Bela_initAudio(&settings, 0) != 0) {
80 cout << "Error: unable to initialise audio" << endl;
81 return -1;
82 }
83
84 // Start the audio device running
85 if(Bela_startAudio()) {
86 cout << "Error: unable to start real-time audio" << endl;
87 return -1;
88 }
89
90 // Set up interrupt handler to catch Control-C and SIGTERM
91 signal(SIGINT, interrupt_handler);
92 signal(SIGTERM, interrupt_handler);
93
94 // Run until told to stop
95 while(!gShouldStop) {
96 usleep(100000);
97 }
98
99 // Stop the audio device
100 Bela_stopAudio();
101
102 // Clean up any resources allocated for audio
103 Bela_cleanupAudio();
104
105 // All done!
106 return 0;
107 }