examples/utils.c

   1
   2 #include "aubio.h"
   3
   4 #ifndef JACK_SUPPORT
   5 #define JACK_SUPPORT 0
   6 #endif
   7
   8 #include <getopt.h>
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <math.h> /* for isfinite */
  13 #include "utils.h"
  14
  15 /* not supported yet */
  16 #ifdef LADCCA_SUPPORT
  17 #include <ladcca/ladcca.h>
  18 cca_client_t * aubio_cca_client;
  19 #endif /* LADCCA_SUPPORT */
  20
  21 /* settings */
  22 const char * output_filename = NULL;
  23 const char * input_filename  = NULL;
  24 const char * onset_filename  = "/usr/share/sounds/aubio/woodblock.aiff";
  25 int frames = 0;
  26 int verbose = 0;
  27 int usejack = 0;
  28 int usedoubled = 1;
  29
  30
  31 /* energy,specdiff,hfc,complexdomain,phase */
  32 aubio_onsetdetection_type type_onset  = hfc;
  33 aubio_onsetdetection_type type_onset2 = complexdomain;
  34 smpl_t threshold                      = 0.3;
  35 smpl_t threshold2                     = -90.;
  36 uint_t buffer_size                    = 1024;
  37 uint_t overlap_size                   = 512;
  38 uint_t channels                       = 1;
  39 uint_t samplerate                     = 44100;
  40
  41
  42 aubio_file_t * file = NULL;
  43 aubio_file_t * fileout = NULL;
  44
  45 aubio_pvoc_t * pv;
  46 fvec_t * ibuf;
  47 fvec_t * obuf;
  48 cvec_t * fftgrain;
  49 fvec_t * woodblock;
  50 aubio_onsetdetection_t *o;
  51 aubio_onsetdetection_t *o2;
  52 fvec_t *onset;
  53 fvec_t *onset2;
  54 int isonset = 0;
  55 aubio_pickpeak_t * parms;
  56
  57
  58 /* pitch objects */
  59 smpl_t pitch               = 0.;
  60 aubio_pitchdetection_t * pitchdet;
  61 aubio_pitchdetection_type mode = aubio_yin; // aubio_mcomb
  62 uint_t median         = 6;
  63
  64 fvec_t * note_buffer  = NULL;
  65 fvec_t * note_buffer2 = NULL;
  66 smpl_t curlevel       = 0.;
  67 smpl_t maxonset       = 0.;
  68
  69 /* midi objects */
  70 aubio_midi_player_t * mplay;
  71 aubio_midi_driver_t * mdriver;
  72 aubio_midi_event_t  * event;
  73
  74 smpl_t curnote = 0.;
  75 smpl_t newnote = 0.;
  76 uint_t isready = 0;
  77
  78
  79
  80 /* badly redeclare some things */
  81 aubio_onsetdetection_type type_onset;
  82 smpl_t threshold;
  83 smpl_t averaging;
  84 const char * prog_name;
  85
  86 void usage (FILE * stream, int exit_code)
  87 {
  88         fprintf(stream, "usage: %s [ options ] \n", prog_name);
  89         fprintf(stream,
  90                         "       -j      --jack          Use Jack.\n"
  91                         "       -o      --output        Output type.\n"
  92                         "       -i      --input         Input type.\n"
  93                         "       -h      --help          Display this message.\n"
  94                         "       -v      --verbose       Print verbose message.\n"
  95                );
  96         exit(exit_code);
  97 }
  98
  99 int parse_args (int argc, char **argv) {
 100         const char *options = "hvjo:i:O:t:s:a";
 101         int next_option;
 102         struct option long_options[] =
 103         {
 104                 {"help"     , 0, NULL, 'h'},
 105                 {"verbose"  , 0, NULL, 'v'},
 106                 {"jack"     , 0, NULL, 'j'},
 107                 {"output"   , 0, NULL, 'o'},
 108                 {"input"    , 0, NULL, 'i'},
 109                 {"onset"    , 0, NULL, 'O'},
 110                 {"threshold", 0, NULL, 't'},
 111                 {"silence"  , 0, NULL, 's'},
 112                 {"averaging", 0, NULL, 'a'},
 113                 {NULL       , 0, NULL, 0}
 114         };
 115         prog_name = argv[0];
 116         if( argc < 1 ) {
 117                 usage (stderr, 1);
 118                 return -1;
 119         }
 120         do {
 121                 next_option = getopt_long (argc, argv, options,
 122                                 long_options, NULL);
 123                 switch (next_option) {
 124                         case 'o':
 125                                 output_filename = optarg;
 126                                 break;
 127                         case 'i':
 128                                 input_filename = optarg;
 129                                 break;
 130                         case 'h':       /* help */
 131                                 usage (stdout, 0);
 132                                 return -1;
 133                         case 'v':               /* verbose */
 134                                 verbose = 1;
 135                                 break;
 136                         case 'j':               /* verbose */
 137                                 usejack = 1;
 138                                 break;
 139                         case 'O':   /*onset type*/
 140                                 if (strcmp(optarg,"energy") == 0)
 141                                         type_onset = energy;
 142                                 else if (strcmp(optarg,"specdiff") == 0)
 143                                         type_onset = specdiff;
 144                                 else if (strcmp(optarg,"hfc") == 0)
 145                                         type_onset = hfc;
 146                                 else if (strcmp(optarg,"complexdomain") == 0)
 147                                         type_onset = complexdomain;
 148                                 else if (strcmp(optarg,"phase") == 0)
 149                                         type_onset = phase;
 150                                 else {
 151                                         debug("could not get onset type.\n");
 152                                         abort();
 153                                 }
 154                                 usedoubled = 0;
 155                                 break;
 156                         case 's':   /* threshold value for onset */
 157                                 threshold2 = (smpl_t)atof(optarg);
 158                                 break;
 159                         case 't':   /* threshold value for onset */
 160                                 threshold = (smpl_t)atof(optarg);
 161                                 /*
 162                                    if (!isfinite(threshold)) {
 163                                    debug("could not get threshold.\n");
 164                                    abort();
 165                                    }
 166                                    */
 167                                 break;
 168                         case 'a':
 169                                 averaging = 1;
 170                                 break;
 171                         case '?':       /* unknown options */
 172                                 usage(stderr, 1);
 173                                 break;
 174                         case -1:                /* done with options */
 175                                 break;
 176                         default:                /*something else unexpected */
 177                                 abort ();
 178                 }
 179         }
 180         while (next_option != -1);
 181
 182         if (input_filename != NULL) {
 183                 debug ("Input file : %s\n", input_filename );
 184         } else if (input_filename != NULL && output_filename != NULL) {
 185                 debug ("Input file : %s\n", input_filename );
 186                 debug ("Output file : %s\n", output_filename );
 187         } else {
 188                 if (JACK_SUPPORT)
 189                 {
 190                         debug ("Jack input output\n");
 191                         usejack = 1;
 192                 } else {
 193                         debug ("Error: Could not switch to jack mode\n   aubio was compiled without jack support\n");
 194                         exit(1);
 195                 }
 196         }
 197         return 0;
 198 }
 199
 200 void examples_common_init(int argc,char ** argv) {
 201
 202
 203   aubio_file_t * onsetfile;
 204   /* parse command line arguments */
 205   parse_args(argc, argv);
 206
 207   woodblock = new_fvec(buffer_size,1);
 208   if (output_filename || usejack) {
 209           (onsetfile = new_file_ro(onset_filename)) ||
 210                   (onsetfile = new_file_ro("sounds/woodblock.aiff")) ||
 211                   (onsetfile = new_file_ro("../sounds/woodblock.aiff"));
 212           /* read the output sound once */
 213           file_read(onsetfile, overlap_size, woodblock);
 214   }
 215
 216   if(!usejack)
 217   {
 218     debug("Opening files ...\n");
 219     file = new_file_ro (input_filename);
 220     if (verbose) file_info(file);
 221     channels = aubio_file_channels(file);
 222     samplerate = aubio_file_samplerate(file);
 223     if (output_filename != NULL)
 224       fileout = new_file_wo(file, output_filename);
 225   }
 226
 227   ibuf      = new_fvec(overlap_size, channels);
 228   obuf      = new_fvec(overlap_size, channels);
 229   fftgrain  = new_cvec(buffer_size, channels);
 230
 231   if (usepitch) {
 232     pitchdet = new_aubio_pitchdetection(buffer_size*4,
 233                     overlap_size, channels, samplerate, mode, aubio_freq);
 234
 235   if (median) {
 236           note_buffer = new_fvec(median, 1);
 237           note_buffer2= new_fvec(median, 1);
 238   }
 239   }
 240   /* phase vocoder */
 241   pv = new_aubio_pvoc(buffer_size, overlap_size, channels);
 242   /* onsets */
 243   parms = new_aubio_peakpicker(threshold);
 244   o = new_aubio_onsetdetection(type_onset,buffer_size,channels);
 245   onset = new_fvec(1, channels);
 246   if (usedoubled)    {
 247     o2 = new_aubio_onsetdetection(type_onset2,buffer_size,channels);
 248     onset2 = new_fvec(1 , channels);
 249   }
 250
 251 }
 252
 253
 254 void examples_common_del(void){
 255   if (usepitch) {
 256           send_noteon(curnote,0);
 257           del_aubio_pitchdetection(pitchdet);
 258           if (median) {
 259                   del_fvec(note_buffer);
 260                   del_fvec(note_buffer2);
 261           }
 262   }
 263   del_aubio_pvoc(pv);
 264   del_fvec(obuf);
 265   del_fvec(ibuf);
 266   del_cvec(fftgrain);
 267   del_fvec(onset);
 268 }
 269
 270 void examples_common_process(aubio_process_func_t process_func, aubio_print_func_t print ){
 271   if(usejack) {
 272 #if JACK_SUPPORT
 273     aubio_jack_t * jack_setup;
 274     debug("Jack init ...\n");
 275     jack_setup = new_aubio_jack(channels, channels,
 276           (aubio_process_func_t)process_func);
 277     if (usepitch) {
 278             debug("Midi init ...\n");
 279             mplay = new_aubio_midi_player();
 280             mdriver = new_aubio_midi_driver("alsa_seq",
 281                             (handle_midi_event_func_t)aubio_midi_send_event, mplay);
 282             event = new_aubio_midi_event();
 283     }
 284     debug("Jack activation ...\n");
 285     aubio_jack_activate(jack_setup);
 286     debug("Processing (Ctrl+C to quit) ...\n");
 287     pause();
 288     aubio_jack_close(jack_setup);
 289     if (usepitch) {
 290             send_noteon(curnote,0);
 291             del_aubio_midi_driver(mdriver);
 292     }
 293 #else
 294     usage(stderr, 1);
 295     outmsg("Compiled without jack output, exiting.\n");
 296 #endif
 297
 298   } else {
 299     /* phasevoc */
 300     debug("Processing ...\n");
 301
 302     frames = 0;
 303
 304     while (overlap_size == file_read(file, overlap_size, ibuf))
 305     {
 306       isonset=0;
 307       process_func(ibuf->data, obuf->data, overlap_size);
 308       print();
 309       if (output_filename != NULL) {
 310         file_write(fileout,overlap_size,obuf);
 311       }
 312       frames++;
 313     }
 314
 315     debug("Processed %d frames of %d samples.\n", frames, buffer_size);
 316     del_file(file);
 317
 318     if (output_filename != NULL)
 319       del_file(fileout);
 320
 321   }
 322 }
 323
 324
 325
 326 void send_noteon(int pitch, int velo)
 327 {
 328     smpl_t mpitch = (FLOOR)(freqtomidi(pitch)+.5);
 329     /* we should check if we use midi here, not jack */
 330 #if ALSA_SUPPORT
 331     if (usejack) {
 332         if (velo==0) {
 333             aubio_midi_event_set_type(event,NOTE_OFF);
 334         } else {
 335             aubio_midi_event_set_type(event,NOTE_ON);
 336         }
 337         aubio_midi_event_set_channel(event,0);
 338         aubio_midi_event_set_pitch(event,mpitch);
 339         aubio_midi_event_set_velocity(event,velo);
 340         aubio_midi_direct_output(mdriver,event);
 341     } else
 342 #endif
 343     if (!verbose)
 344     {
 345         if (velo==0) {
 346             outmsg("%f\n",frames*overlap_size/(float)samplerate);
 347         } else {
 348             outmsg("%f\t%f\t", mpitch,
 349                         frames*overlap_size/(float)samplerate);
 350         }
 351     }
 352 }
 353
 354
 355 void note_append(fvec_t * note_buffer, smpl_t curnote) {
 356   uint_t i = 0;
 357   for (i = 0; i < note_buffer->length - 1; i++) {
 358       note_buffer->data[0][i] = note_buffer->data[0][i+1];
 359   }
 360   note_buffer->data[0][note_buffer->length - 1] = curnote;
 361   return;
 362 }
 363
 364 uint_t get_note(fvec_t *note_buffer, fvec_t *note_buffer2){
 365   uint_t i = 0;
 366   for (i = 0; i < note_buffer->length; i++) {
 367       note_buffer2->data[0][i] = note_buffer->data[0][i];
 368   }
 369   return vec_median(note_buffer2);
 370 }
 371