Mercurial > hg > index.fcgi > lsonify > lsonify-1pba

comparison metro.c @ 1:46d4c88917a2

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add Makefile; rename string to refer to "lsonify" instead of jack_metro; connect to physical input ports on startup
author paulo@localhost
date Sun, 17 May 2009 02:32:01 -0700
parents 047192fef940
children
comparison
equal deleted inserted replaced
0:ad2566db6ba4 1:03ebe23290fd
47 void 47 void
48 usage () 48 usage ()
49 49
50 { 50 {
51 fprintf (stderr, "\n" 51 fprintf (stderr, "\n"
52 "usage: jack_metro \n" 52 "usage: lsonify \n"
53 " [ --frequency OR -f frequency (in Hz) ]\n" 53 " [ --frequency OR -f frequency (in Hz) ]\n"
54 " [ --amplitude OR -A maximum amplitude (between 0 and 1) ]\n" 54 " [ --amplitude OR -A maximum amplitude (between 0 and 1) ]\n"
55 " [ --duration OR -D duration (in ms) ]\n" 55 " [ --duration OR -D duration (in ms) ]\n"
56 " [ --attack OR -a attack (in percent of duration) ]\n" 56 " [ --attack OR -a attack (in percent of duration) ]\n"
57 " [ --decay OR -d decay (in percent of duration) ]\n" 57 " [ --decay OR -d decay (in percent of duration) ]\n"
58 " [ --name OR -n jack name for metronome client ]\n" 58 " [ --name OR -n jack name for metronome client ]\n"
59 " [ --transport OR -t transport aware ]\n" 59 " [ --transport OR -t transport aware ]\n"
60 " [ --nophysical OR -p to prevent auto-connect to all physical ports]\n"
60 " --bpm OR -b beats per minute\n" 61 " --bpm OR -b beats per minute\n"
61 ); 62 );
62 } 63 }
63 64
64 void 65 void
116 117
117 sample_t scale; 118 sample_t scale;
118 int i, attack_length, decay_length; 119 int i, attack_length, decay_length;
119 double *amp; 120 double *amp;
120 double max_amp = 0.5; 121 double max_amp = 0.5;
121 int option_index;
122 int opt; 122 int opt;
123 int got_bpm = 0; 123 int got_bpm = 0;
124 int attack_percent = 1, decay_percent = 10, dur_arg = 100; 124 int attack_percent = 1, decay_percent = 10, dur_arg = 100;
125 char *client_name = 0; 125 char *client_name = 0;
126 char *bpm_string = "bpm"; 126 char *port_string = "out";
127 int verbose = 0; 127 int verbose = 0;
128 int connect_physical_ports = 1;
128 jack_status_t status; 129 jack_status_t status;
129 130
130 const char *options = "f:A:D:a:d:b:n:thv"; 131 const char *options = "f:A:D:a:d:b:n:tphv";
131 struct option long_options[] = 132 struct option long_options[] =
132 { 133 {
133 {"frequency", 1, 0, 'f'}, 134 {"frequency", 1, 0, 'f'},
134 {"amplitude", 1, 0, 'A'}, 135 {"amplitude", 1, 0, 'A'},
135 {"duration", 1, 0, 'D'}, 136 {"duration", 1, 0, 'D'},
136 {"attack", 1, 0, 'a'}, 137 {"attack", 1, 0, 'a'},
137 {"decay", 1, 0, 'd'}, 138 {"decay", 1, 0, 'd'},
138 {"bpm", 1, 0, 'b'}, 139 {"bpm", 1, 0, 'b'},
139 {"name", 1, 0, 'n'}, 140 {"name", 1, 0, 'n'},
140 {"transport", 0, 0, 't'}, 141 {"transport", 0, 0, 't'},
142 {"nophysical", 0, 0, 'p'},
141 {"help", 0, 0, 'h'}, 143 {"help", 0, 0, 'h'},
142 {"verbose", 0, 0, 'v'}, 144 {"verbose", 0, 0, 'v'},
143 {0, 0, 0, 0} 145 {0, 0, 0, 0}
144 }; 146 };
145 147
146 while ((opt = getopt_long (argc, argv, options, long_options, &option_index)) != EOF) { 148 while ((opt = getopt_long (argc, argv, options, long_options, NULL)) != EOF) {
147 switch (opt) { 149 switch (opt) {
148 case 'f': 150 case 'f':
149 if ((freq = atoi (optarg)) <= 0) { 151 if ((freq = atoi (optarg)) <= 0) {
150 fprintf (stderr, "invalid frequency\n"); 152 fprintf (stderr, "invalid frequency\n");
151 return -1; 153 return -1;
177 got_bpm = 1; 179 got_bpm = 1;
178 if ((bpm = atoi (optarg)) < 0) { 180 if ((bpm = atoi (optarg)) < 0) {
179 fprintf (stderr, "invalid bpm\n"); 181 fprintf (stderr, "invalid bpm\n");
180 return -1; 182 return -1;
181 } 183 }
182 bpm_string = (char *) malloc ((strlen (optarg) + 4) * sizeof (char));
183 strcpy (bpm_string, optarg);
184 strcat (bpm_string, "_bpm");
185 break; 184 break;
186 case 'n': 185 case 'n':
187 client_name = (char *) malloc (strlen (optarg) * sizeof (char)); 186 client_name = (char *) malloc (strlen (optarg) * sizeof (char));
188 strcpy (client_name, optarg); 187 strcpy (client_name, optarg);
189 break; 188 break;
190 case 'v': 189 case 'v':
191 verbose = 1; 190 verbose = 1;
192 break; 191 break;
193 case 't': 192 case 't':
194 transport_aware = 1; 193 transport_aware = 1;
194 break;
195 case 'p':
196 connect_physical_ports = 0;
195 break; 197 break;
196 default: 198 default:
197 fprintf (stderr, "unknown option %c\n", opt); 199 fprintf (stderr, "unknown option %c\n", opt);
198 case 'h': 200 case 'h':
199 usage (); 201 usage ();
206 return -1; 208 return -1;
207 } 209 }
208 210
209 /* Initial Jack setup, get sample rate */ 211 /* Initial Jack setup, get sample rate */
210 if (!client_name) { 212 if (!client_name) {
211 client_name = (char *) malloc (9 * sizeof (char)); 213 pid_t pid = getpid();
212 strcpy (client_name, "metro"); 214 client_name = (char *) malloc (32 * sizeof (char));
215 snprintf (client_name, 32, "metro_%d", pid);
213 } 216 }
214 if ((client = jack_client_open (client_name, JackNoStartServer, &status)) == 0) { 217 if ((client = jack_client_open (client_name, JackNoStartServer, &status)) == 0) {
215 fprintf (stderr, "jack server not running?\n"); 218 fprintf (stderr, "jack server not running?\n");
216 return 1; 219 return 1;
217 } 220 }
218 jack_set_process_callback (client, process, 0); 221 jack_set_process_callback (client, process, 0);
219 output_port = jack_port_register (client, bpm_string, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0); 222 output_port = jack_port_register (client, port_string, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
220 223
221 sr = jack_get_sample_rate (client); 224 sr = jack_get_sample_rate (client);
222 225
223 /* setup wave table parameters */ 226 /* setup wave table parameters */
224 wave_length = 60 * sr / bpm; 227 wave_length = 60 * sr / bpm;
261 if (jack_activate (client)) { 264 if (jack_activate (client)) {
262 fprintf (stderr, "cannot activate client"); 265 fprintf (stderr, "cannot activate client");
263 return 1; 266 return 1;
264 } 267 }
265 268
269 /* connect to physical ports */
270 if (connect_physical_ports) {
271 const char **ports = jack_get_ports (client, NULL, NULL, JackPortIsPhysical | JackPortIsInput);
272 const char **c;
273 for (c = ports; c && *c; c++)
274 jack_connect (client, jack_port_name(output_port), *c);
275 }
276
266 while (1) { 277 while (1) {
267 sleep(1); 278 sleep(1);
268 }; 279 };
269 280
270 } 281 }