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  = kl;
  33 aubio_onsetdetection_type type_onset2 = complexdomain;
  34 smpl_t threshold                      = 0.3;
  35 smpl_t threshold2                     = -90.;
  36 uint_t buffer_size                    = 512; //1024;
  37 uint_t overlap_size                   = 256; //512;
  38 uint_t channels                       = 1;
  39 uint_t samplerate                     = 44100;
  40
  41
  42 aubio_sndfile_t * file = NULL;
  43 aubio_sndfile_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_pitch_yin; // aubio_pitch_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:H: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                 {"hopsize",   0, NULL, 'H'},
 114                 {NULL       , 0, NULL, 0}
 115         };
 116         prog_name = argv[0];
 117         if( argc < 1 ) {
 118                 usage (stderr, 1);
 119                 return -1;
 120         }
 121         do {
 122                 next_option = getopt_long (argc, argv, options,
 123                                 long_options, NULL);
 124                 switch (next_option) {
 125                         case 'o':
 126                                 output_filename = optarg;
 127                                 break;
 128                         case 'i':
 129                                 input_filename = optarg;
 130                                 break;
 131                         case 'h':       /* help */
 132                                 usage (stdout, 0);
 133                                 return -1;
 134                         case 'v':               /* verbose */
 135                                 verbose = 1;
 136                                 break;
 137                         case 'j':               /* verbose */
 138                                 usejack = 1;
 139                                 break;
 140                         case 'O':   /*onset type*/
 141                                 if (strcmp(optarg,"energy") == 0)
 142                                         type_onset = energy;
 143                                 else if (strcmp(optarg,"specdiff") == 0)
 144                                         type_onset = specdiff;
 145                                 else if (strcmp(optarg,"hfc") == 0)
 146                                         type_onset = hfc;
 147                                 else if (strcmp(optarg,"complexdomain") == 0)
 148                                         type_onset = complexdomain;
 149                                 else if (strcmp(optarg,"phase") == 0)
 150                                         type_onset = phase;
 151                                 else {
 152                                         debug("could not get onset type.\n");
 153                                         abort();
 154                                 }
 155                                 usedoubled = 0;
 156                                 break;
 157                         case 's':   /* threshold value for onset */
 158                                 threshold2 = (smpl_t)atof(optarg);
 159                                 break;
 160                         case 't':   /* threshold value for onset */
 161                                 threshold = (smpl_t)atof(optarg);
 162                                 /*
 163                                    if (!isfinite(threshold)) {
 164                                    debug("could not get threshold.\n");
 165                                    abort();
 166                                    }
 167                                    */
 168                                 break;
 169                         case 'a':
 170                                 averaging = 1;
 171                                 break;
 172                         case 'H':
 173                                 overlap_size = atoi(optarg);
 174                                 break;
 175                         case '?':       /* unknown options */
 176                                 usage(stderr, 1);
 177                                 break;
 178                         case -1:                /* done with options */
 179                                 break;
 180                         default:                /*something else unexpected */
 181                                 abort ();
 182                 }
 183         }
 184         while (next_option != -1);
 185
 186         if (input_filename != NULL) {
 187                 debug ("Input file : %s\n", input_filename );
 188         } else if (input_filename != NULL && output_filename != NULL) {
 189                 debug ("Input file : %s\n", input_filename );
 190                 debug ("Output file : %s\n", output_filename );
 191         } else {
 192                 if (JACK_SUPPORT)
 193                 {
 194                         debug ("Jack input output\n");
 195                         usejack = 1;
 196                 } else {
 197                         debug ("Error: Could not switch to jack mode\n   aubio was compiled without jack support\n");
 198                         exit(1);
 199                 }
 200         }
 201         return 0;
 202 }
 203
 204 void examples_common_init(int argc,char ** argv) {
 205
 206
 207   aubio_sndfile_t * onsetfile;
 208   /* parse command line arguments */
 209   parse_args(argc, argv);
 210
 211   woodblock = new_fvec(buffer_size,1);
 212   if (output_filename || usejack) {
 213           (onsetfile = new_aubio_sndfile_ro(onset_filename)) ||
 214                   (onsetfile = new_aubio_sndfile_ro("sounds/woodblock.aiff")) ||
 215                   (onsetfile = new_aubio_sndfile_ro("../sounds/woodblock.aiff"));
 216           /* read the output sound once */
 217           aubio_sndfile_read(onsetfile, overlap_size, woodblock);
 218   }
 219
 220   if(!usejack)
 221   {
 222     debug("Opening files ...\n");
 223     file = new_aubio_sndfile_ro (input_filename);
 224     if (verbose) aubio_sndfile_info(file);
 225     channels = aubio_sndfile_channels(file);
 226     samplerate = aubio_sndfile_samplerate(file);
 227     if (output_filename != NULL)
 228       fileout = new_aubio_sndfile_wo(file, output_filename);
 229   }
 230
 231   ibuf      = new_fvec(overlap_size, channels);
 232   obuf      = new_fvec(overlap_size, channels);
 233   fftgrain  = new_cvec(buffer_size, channels);
 234
 235   if (usepitch) {
 236     pitchdet = new_aubio_pitchdetection(buffer_size*4,
 237                     overlap_size, channels, samplerate, mode, aubio_pitchm_freq);
 238
 239   if (median) {
 240           note_buffer = new_fvec(median, 1);
 241           note_buffer2= new_fvec(median, 1);
 242   }
 243   }
 244   /* phase vocoder */
 245   pv = new_aubio_pvoc(buffer_size, overlap_size, channels);
 246   /* onsets */
 247   parms = new_aubio_peakpicker(threshold);
 248   o = new_aubio_onsetdetection(type_onset,buffer_size,channels);
 249   onset = new_fvec(1, channels);
 250   if (usedoubled)    {
 251     o2 = new_aubio_onsetdetection(type_onset2,buffer_size,channels);
 252     onset2 = new_fvec(1 , channels);
 253   }
 254
 255 }
 256
 257
 258 void examples_common_del(void){
 259   if (usepitch) {
 260           send_noteon(curnote,0);
 261           del_aubio_pitchdetection(pitchdet);
 262           if (median) {
 263                   del_fvec(note_buffer);
 264                   del_fvec(note_buffer2);
 265           }
 266   }
 267   del_aubio_pvoc(pv);
 268   del_fvec(obuf);
 269   del_fvec(ibuf);
 270   del_cvec(fftgrain);
 271   del_fvec(onset);
 272 }
 273
 274 void examples_common_process(aubio_process_func_t process_func, aubio_print_func_t print ){
 275   if(usejack) {
 276 #if JACK_SUPPORT
 277     aubio_jack_t * jack_setup;
 278     debug("Jack init ...\n");
 279     jack_setup = new_aubio_jack(channels, channels,
 280           (aubio_process_func_t)process_func);
 281     if (usepitch) {
 282             debug("Midi init ...\n");
 283             mplay = new_aubio_midi_player();
 284             mdriver = new_aubio_midi_driver("alsa_seq",
 285                             (handle_midi_event_func_t)aubio_midi_send_event, mplay);
 286             event = new_aubio_midi_event();
 287     }
 288     debug("Jack activation ...\n");
 289     aubio_jack_activate(jack_setup);
 290     debug("Processing (Ctrl+C to quit) ...\n");
 291     pause();
 292     aubio_jack_close(jack_setup);
 293     if (usepitch) {
 294             send_noteon(curnote,0);
 295             del_aubio_midi_driver(mdriver);
 296     }
 297 #else
 298     usage(stderr, 1);
 299     outmsg("Compiled without jack output, exiting.\n");
 300 #endif
 301
 302   } else {
 303     /* phasevoc */
 304     debug("Processing ...\n");
 305
 306     frames = 0;
 307
 308     while (overlap_size == aubio_sndfile_read(file, overlap_size, ibuf))
 309     {
 310       isonset=0;
 311       process_func(ibuf->data, obuf->data, overlap_size);
 312       print();
 313       if (output_filename != NULL) {
 314         aubio_sndfile_write(fileout,overlap_size,obuf);
 315       }
 316       frames++;
 317     }
 318
 319     debug("Processed %d frames of %d samples.\n", frames, buffer_size);
 320     del_aubio_sndfile(file);
 321
 322     if (output_filename != NULL)
 323       del_aubio_sndfile(fileout);
 324
 325   }
 326 }
 327
 328
 329
 330 void send_noteon(int pitch, int velo)
 331 {
 332     smpl_t mpitch = (FLOOR)(aubio_freqtomidi(pitch)+.5);
 333     /* we should check if we use midi here, not jack */
 334 #if ALSA_SUPPORT
 335     if (usejack) {
 336         if (velo==0) {
 337             aubio_midi_event_set_type(event,NOTE_OFF);
 338         } else {
 339             aubio_midi_event_set_type(event,NOTE_ON);
 340         }
 341         aubio_midi_event_set_channel(event,0);
 342         aubio_midi_event_set_pitch(event,mpitch);
 343         aubio_midi_event_set_velocity(event,velo);
 344         aubio_midi_direct_output(mdriver,event);
 345     } else
 346 #endif
 347     if (!verbose)
 348     {
 349         if (velo==0) {
 350             outmsg("%f\n",frames*overlap_size/(float)samplerate);
 351         } else {
 352             outmsg("%f\t%f\t", mpitch,
 353                         frames*overlap_size/(float)samplerate);
 354         }
 355     }
 356 }
 357
 358
 359 void note_append(fvec_t * note_buffer, smpl_t curnote) {
 360   uint_t i = 0;
 361   for (i = 0; i < note_buffer->length - 1; i++) {
 362       note_buffer->data[0][i] = note_buffer->data[0][i+1];
 363   }
 364   note_buffer->data[0][note_buffer->length - 1] = curnote;
 365   return;
 366 }
 367
 368 uint_t get_note(fvec_t *note_buffer, fvec_t *note_buffer2){
 369   uint_t i = 0;
 370   for (i = 0; i < note_buffer->length; i++) {
 371       note_buffer2->data[0][i] = note_buffer->data[0][i];
 372   }
 373   return vec_median(note_buffer2);
 374 }
 375