|
andrewm@89
|
1 /*
|
|
andrewm@89
|
2 * main.cpp
|
|
andrewm@89
|
3 *
|
|
andrewm@89
|
4 * Created on: Oct 24, 2014
|
|
andrewm@89
|
5 * Author: parallels
|
|
andrewm@89
|
6 */
|
|
andrewm@89
|
7
|
|
andrewm@89
|
8 #include <iostream>
|
|
andrewm@89
|
9 #include <cstdlib>
|
|
andrewm@89
|
10 #include <libgen.h>
|
|
andrewm@89
|
11 #include <signal.h>
|
|
andrewm@89
|
12 #include <getopt.h>
|
|
andrewm@89
|
13 #include <BeagleRT.h>
|
|
andrewm@89
|
14
|
|
andrewm@89
|
15 extern int gBufferSize;
|
|
andrewm@89
|
16
|
|
andrewm@89
|
17 using namespace std;
|
|
andrewm@89
|
18
|
|
andrewm@89
|
19 // Handle Ctrl-C by requesting that the audio rendering stop
|
|
andrewm@89
|
20 void interrupt_handler(int var)
|
|
andrewm@89
|
21 {
|
|
andrewm@89
|
22 gShouldStop = true;
|
|
andrewm@89
|
23 }
|
|
andrewm@89
|
24
|
|
andrewm@89
|
25 // Print usage information
|
|
andrewm@89
|
26 void usage(const char * processName)
|
|
andrewm@89
|
27 {
|
|
andrewm@89
|
28 cerr << "Usage: " << processName << " [options]" << endl;
|
|
andrewm@89
|
29
|
|
andrewm@89
|
30 BeagleRT_usage();
|
|
andrewm@89
|
31
|
|
andrewm@89
|
32 cerr << " --buffer-size [-b] size Set the analysis buffer size\n";
|
|
andrewm@89
|
33 cerr << " --help [-h]: Print this menu\n";
|
|
andrewm@89
|
34 }
|
|
andrewm@89
|
35
|
|
andrewm@89
|
36 int main(int argc, char *argv[])
|
|
andrewm@89
|
37 {
|
|
andrewm@89
|
38 BeagleRTInitSettings settings; // Standard audio settings
|
|
andrewm@89
|
39
|
|
andrewm@89
|
40 struct option customOptions[] =
|
|
andrewm@89
|
41 {
|
|
andrewm@89
|
42 {"help", 0, NULL, 'h'},
|
|
andrewm@89
|
43 {"buffer-size", 1, NULL, 'b'},
|
|
andrewm@89
|
44 {NULL, 0, NULL, 0}
|
|
andrewm@89
|
45 };
|
|
andrewm@89
|
46
|
|
andrewm@89
|
47 // Set default settings
|
|
andrewm@89
|
48 BeagleRT_defaultSettings(&settings);
|
|
andrewm@89
|
49
|
|
andrewm@89
|
50 // By default use a longer period size because latency is not an issue
|
|
andrewm@89
|
51 settings.periodSize = 32;
|
|
andrewm@89
|
52
|
|
andrewm@89
|
53 // Parse command-line arguments
|
|
andrewm@89
|
54 while (1) {
|
|
andrewm@89
|
55 int c;
|
|
andrewm@89
|
56 if ((c = BeagleRT_getopt_long(argc, argv, "hb:", customOptions, &settings)) < 0)
|
|
andrewm@89
|
57 break;
|
|
andrewm@89
|
58 switch (c) {
|
|
andrewm@89
|
59 case 'b':
|
|
andrewm@89
|
60 gBufferSize = atoi(optarg);
|
|
andrewm@89
|
61 break;
|
|
andrewm@89
|
62 case 'h':
|
|
andrewm@89
|
63 usage(basename(argv[0]));
|
|
andrewm@89
|
64 exit(0);
|
|
andrewm@89
|
65 case '?':
|
|
andrewm@89
|
66 default:
|
|
andrewm@89
|
67 usage(basename(argv[0]));
|
|
andrewm@89
|
68 exit(1);
|
|
andrewm@89
|
69 }
|
|
andrewm@89
|
70 }
|
|
andrewm@89
|
71
|
|
andrewm@89
|
72 if(gBufferSize < settings.periodSize)
|
|
andrewm@89
|
73 gBufferSize = settings.periodSize;
|
|
andrewm@89
|
74
|
|
andrewm@89
|
75 // Initialise the PRU audio device
|
|
andrewm@89
|
76 if(BeagleRT_initAudio(&settings, 0) != 0) {
|
|
andrewm@89
|
77 cout << "Error: unable to initialise audio" << endl;
|
|
andrewm@89
|
78 return -1;
|
|
andrewm@89
|
79 }
|
|
andrewm@89
|
80
|
|
andrewm@89
|
81 // Start the audio device running
|
|
andrewm@89
|
82 if(BeagleRT_startAudio()) {
|
|
andrewm@89
|
83 cout << "Error: unable to start real-time audio" << endl;
|
|
andrewm@89
|
84 return -1;
|
|
andrewm@89
|
85 }
|
|
andrewm@89
|
86
|
|
andrewm@89
|
87 // Set up interrupt handler to catch Control-C and SIGTERM
|
|
andrewm@89
|
88 signal(SIGINT, interrupt_handler);
|
|
andrewm@89
|
89 signal(SIGTERM, interrupt_handler);
|
|
andrewm@89
|
90
|
|
andrewm@89
|
91 // Run until told to stop
|
|
andrewm@89
|
92 while(!gShouldStop) {
|
|
andrewm@89
|
93 usleep(100000);
|
|
andrewm@89
|
94 }
|
|
andrewm@89
|
95
|
|
andrewm@89
|
96 // Stop the audio device
|
|
andrewm@89
|
97 BeagleRT_stopAudio();
|
|
andrewm@89
|
98
|
|
andrewm@89
|
99 // Clean up any resources allocated for audio
|
|
andrewm@89
|
100 BeagleRT_cleanupAudio();
|
|
andrewm@89
|
101
|
|
andrewm@89
|
102 // All done!
|
|
andrewm@89
|
103 return 0;
|
|
andrewm@89
|
104 }
|
