source: examples/utils.c @ 38837b1

#include "aubio.h"

#ifndef JACK_SUPPORT
#define JACK_SUPPORT 0
#endif

#include <getopt.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h> /* for isfinite */
#include "utils.h"

#ifdef LASH_SUPPORT
#include <lash/lash.h>
#include <pthread.h>
lash_client_t * aubio_lash_client;
lash_args_t * lash_args;
void * lash_thread_main (void * data);
int lash_main (void);
void save_data (void);
void restore_data(lash_config_t * lash_config);
pthread_t lash_thread;
#endif /* LASH_SUPPORT */

/* settings */
const char * output_filename = NULL;
const char * input_filename  = NULL;
const char * onset_filename  = AUBIO_PREFIX "/share/sounds/" PACKAGE "/woodblock.aiff";
int frames = 0;
int verbose = 0;
int usejack = 0;
int usedoubled = 1;


/* energy,specdiff,hfc,complexdomain,phase */
aubio_onsetdetection_type type_onset  = aubio_onset_kl;
aubio_onsetdetection_type type_onset2 = aubio_onset_complex;
smpl_t threshold                      = 0.3;
smpl_t silence                        = -90.;
uint_t buffer_size                    = 512; //1024;
uint_t overlap_size                   = 256; //512;
uint_t channels                       = 1;
uint_t samplerate                     = 44100;


aubio_sndfile_t * file = NULL;
aubio_sndfile_t * fileout = NULL;

aubio_pvoc_t * pv;
fvec_t * ibuf;
fvec_t * obuf;
cvec_t * fftgrain;
fvec_t * woodblock;
aubio_onsetdetection_t *o;
aubio_onsetdetection_t *o2;
fvec_t *onset;
fvec_t *onset2;
int isonset = 0;
aubio_pickpeak_t * parms;

/* mfcc objects */
//parameters
uint_t n_filters=20;
smpl_t lowfreq=80.f;
smpl_t highfreq=18000.f;
// filterbank object
aubio_filterbank_t * mf;

// DCT mfft and result storage
aubio_mfft_t * fft_dct;
cvec_t * fftgrain_dct;
smpl_t * mfcc_outbuf[11];


/* pitch objects */
smpl_t pitch               = 0.;
aubio_pitchdetection_t * pitchdet;
aubio_pitchdetection_type type_pitch = aubio_pitch_yinfft; // aubio_pitch_mcomb
aubio_pitchdetection_mode mode_pitch = aubio_pitchm_freq;
uint_t median         = 6;

fvec_t * note_buffer  = NULL;
fvec_t * note_buffer2 = NULL;
smpl_t curlevel       = 0.;
smpl_t maxonset       = 0.;

/* midi objects */
aubio_midi_player_t * mplay; 
aubio_midi_driver_t * mdriver; 
aubio_midi_event_t  * event;

smpl_t curnote = 0.;
smpl_t newnote = 0.;
uint_t isready = 0;



/* badly redeclare some things */
aubio_onsetdetection_type type_onset;
smpl_t threshold;
smpl_t averaging;
const char * prog_name;

void usage (FILE * stream, int exit_code)
{
        fprintf(stream, "usage: %s [ options ] \n", prog_name);
        fprintf(stream, 
                        "       -h      --help          Display this message.\n"
                        "       -v      --verbose       Be verbose.\n"
                        "       -j      --jack          Use Jack.\n"
                        "       -o      --output        Output type.\n"
                        "       -i      --input         Input type.\n"
                        "       -O      --onset         Select onset detection algorithm.\n"
                        "       -t      --threshold     Set onset detection threshold.\n"
                        "       -s      --silence       Select silence threshold.\n"
                        "       -p      --pitch         Select pitch detection algorithm.\n"
                        "       -H      --hopsize       Set hopsize.\n"
                        "       -a      --averaging     Use averaging.\n"
               );
        exit(exit_code);
}

int parse_args (int argc, char **argv) {
        const char *options = "hvjo:i:O:t:s:p:H:a";
        int next_option;
        struct option long_options[] =
        {
                {"help"     , 0, NULL, 'h'},
                {"verbose"  , 0, NULL, 'v'},
                {"jack"     , 0, NULL, 'j'},
                {"output"   , 1, NULL, 'o'},
                {"input"    , 1, NULL, 'i'},
                {"onset"    , 1, NULL, 'O'},
                {"threshold", 1, NULL, 't'},
                {"silence"  , 1, NULL, 's'},
                {"pitch"    , 1, NULL, 'p'},
                {"averaging", 0, NULL, 'a'},
                {"hopsize",   1, NULL, 'H'},
                {NULL       , 0, NULL, 0}
        };
#ifdef LASH_SUPPORT
        lash_args = lash_extract_args(&argc, &argv);
#endif /* LASH_SUPPORT */
        prog_name = argv[0];
        if( argc < 1 ) {
                usage (stderr, 1);
                return -1;
        }
        do {
                next_option = getopt_long (argc, argv, options, 
                                long_options, NULL);
                switch (next_option) {
                        case 'o':
                                output_filename = optarg;
                                break;
                        case 'i':
                                input_filename = optarg;
                                break;
                        case 'h': /* help */
                                usage (stdout, 0);
                                return -1;
                        case 'v': /* verbose */
                                verbose = 1;
                                break;
                        case 'j':
                                usejack = 1;
                                break;
                        case 'O':   /*onset type*/
                                if (strcmp(optarg,"energy") == 0) 
                                        type_onset = aubio_onset_energy;
                                else if (strcmp(optarg,"specdiff") == 0) 
                                        type_onset = aubio_onset_specdiff;
                                else if (strcmp(optarg,"hfc") == 0) 
                                        type_onset = aubio_onset_hfc;
                                else if (strcmp(optarg,"complexdomain") == 0) 
                                        type_onset = aubio_onset_complex;
                                else if (strcmp(optarg,"complex") == 0) 
                                        type_onset = aubio_onset_complex;
                                else if (strcmp(optarg,"phase") == 0) 
                                        type_onset = aubio_onset_phase;
                                else if (strcmp(optarg,"mkl") == 0) 
                                        type_onset = aubio_onset_mkl;
                                else if (strcmp(optarg,"kl") == 0) 
                                        type_onset = aubio_onset_kl;
                                else {
                                        errmsg("unknown onset type.\n");
                                        abort();
                                }
                                usedoubled = 0;
                                break;
                        case 's':   /* threshold value for onset */
                                silence = (smpl_t)atof(optarg);
                                break;
                        case 't':   /* threshold value for onset */
                                threshold = (smpl_t)atof(optarg);
                                /*
                                   if (!isfinite(threshold)) {
                                   debug("could not get threshold.\n");
                                   abort();
                                   }
                                   */
                                break;
                        case 'p':
                                if (strcmp(optarg,"mcomb") == 0) 
                                        type_pitch = aubio_pitch_mcomb;
                                else if (strcmp(optarg,"yinfft") == 0) 
                                        type_pitch = aubio_pitch_yin;
                                else if (strcmp(optarg,"yin") == 0) 
                                        type_pitch = aubio_pitch_yin;
                                else if (strcmp(optarg,"schmitt") == 0) 
                                        type_pitch = aubio_pitch_schmitt;
                                else if (strcmp(optarg,"fcomb") == 0) 
                                        type_pitch = aubio_pitch_fcomb;
                                else {
                                        errmsg("unknown pitch type.\n");
                                        abort();
                                }
                                break;
                        case 'a':
                                averaging = 1;
                                break; 
                        case 'H':
                                overlap_size = atoi(optarg);
                                break;
                        case '?': /* unknown options */
                                usage(stderr, 1);
                                break;
                        case -1: /* done with options */
                                break;
                        default: /*something else unexpected */
                                abort ();
                }
        }
        while (next_option != -1);

        if (input_filename != NULL) {
                debug ("Input file : %s\n", input_filename );
        } else if (input_filename != NULL && output_filename != NULL) {
                debug ("Input file : %s\n", input_filename );
                debug ("Output file : %s\n", output_filename );
        } else {
                if (JACK_SUPPORT)
                {
                        debug ("Jack input output\n");
                        usejack = 1;
                } else {
                        debug ("Error: Could not switch to jack mode\n   aubio was compiled without jack support\n");
                        exit(1);
                }
        }

        return 0;
}

void examples_common_init(int argc,char ** argv) {


  aubio_sndfile_t * onsetfile = NULL;
  /* parse command line arguments */
  parse_args(argc, argv);

  woodblock = new_fvec(buffer_size,1);
  if (output_filename || usejack) {
          /* dummy assignement to keep egcs happy */
          isonset = (onsetfile = new_aubio_sndfile_ro(onset_filename)) ||
                  (onsetfile = new_aubio_sndfile_ro("sounds/woodblock.aiff")) ||
                  (onsetfile = new_aubio_sndfile_ro("../sounds/woodblock.aiff"));
          if (onsetfile == NULL) {
            outmsg("Could not find woodblock.aiff\n");
            exit(1);
          }
  }
  if (onsetfile) {
          /* read the output sound once */
          aubio_sndfile_read(onsetfile, overlap_size, woodblock);
  }

  if(!usejack)
  {
    debug("Opening files ...\n");
    file = new_aubio_sndfile_ro (input_filename);
    if (file == NULL) {
      outmsg("Could not open input file %s.\n", input_filename);
      exit(1);
    }
    if (verbose) aubio_sndfile_info(file);
    channels = aubio_sndfile_channels(file);
    samplerate = aubio_sndfile_samplerate(file);
    if (output_filename != NULL)
      fileout = new_aubio_sndfile_wo(file, output_filename);
  }
#ifdef LASH_SUPPORT
  else {
    aubio_lash_client = lash_init(lash_args, argv[0],
        LASH_Config_Data_Set | LASH_Terminal,
        LASH_PROTOCOL(2, 0));
    if (!aubio_lash_client) {
      fprintf(stderr, "%s: could not initialise lash\n", __FUNCTION__);
    }
    /* tell the lash server our client id */
    if (lash_enabled(aubio_lash_client)) {
      lash_event_t * event = (lash_event_t *)lash_event_new_with_type(LASH_Client_Name);
      lash_event_set_string(event, "aubio");
      lash_send_event(aubio_lash_client, event);
      pthread_create(&lash_thread, NULL, lash_thread_main, NULL);
    }
  }
#endif /* LASH_SUPPORT */

  ibuf      = new_fvec(overlap_size, channels);
  obuf      = new_fvec(overlap_size, channels);
  fftgrain  = new_cvec(buffer_size, channels);

  //init for mfcc process
  fftgrain_dct= new_cvec(n_filters, channels);

  if (usepitch) {
    pitchdet = new_aubio_pitchdetection(buffer_size*4, 
        overlap_size, channels, samplerate, type_pitch, mode_pitch);
    aubio_pitchdetection_set_yinthresh(pitchdet, 0.7);

    if (median) {
      note_buffer = new_fvec(median, 1);
      note_buffer2= new_fvec(median, 1);
    }
  }
  /* phase vocoder */
  pv = new_aubio_pvoc(buffer_size, overlap_size, channels);
  
  // dct phase vocoder
  //TODO: check size
  fft_dct = new_aubio_mfft(n_filters, channels);

  /* onsets */
  parms = new_aubio_peakpicker(threshold);
  o = new_aubio_onsetdetection(type_onset,buffer_size,channels);
  onset = new_fvec(1, channels);
  if (usedoubled)    {
    o2 = new_aubio_onsetdetection(type_onset2,buffer_size,channels);
    onset2 = new_fvec(1 , channels);
  }

}


void examples_common_del(void){
  if (usepitch) {
          send_noteon(curnote,0);
          del_aubio_pitchdetection(pitchdet);
          if (median) {
                  del_fvec(note_buffer);
                  del_fvec(note_buffer2);
          }
  }
  if (usedoubled)    {
    del_aubio_onsetdetection(o2);
    del_fvec(onset2);
  }
  del_aubio_onsetdetection(o);
  del_aubio_peakpicker(parms);
  del_aubio_pvoc(pv);
  del_fvec(obuf);
  del_fvec(ibuf);
  del_cvec(fftgrain);
  del_fvec(onset);
  del_fvec(woodblock);
  
  //mffc related
  del_aubio_mfft(fft_dct);
  del_cvec(fftgrain_dct);
  
  aubio_cleanup();
}

void examples_common_process(aubio_process_func_t process_func, aubio_print_func_t print ){
  if(usejack) {
#if JACK_SUPPORT
    aubio_jack_t * jack_setup;
    debug("Jack init ...\n");
    jack_setup = new_aubio_jack(channels, channels,
          (aubio_process_func_t)process_func);
    if (usepitch) {
            debug("Midi init ...\n");
            mplay = new_aubio_midi_player();
            mdriver = new_aubio_midi_driver("alsa_seq",
                            (handle_midi_event_func_t)aubio_midi_send_event, mplay);
            event = new_aubio_midi_event();
    }
    debug("Jack activation ...\n");
    aubio_jack_activate(jack_setup);
    debug("Processing (Ctrl+C to quit) ...\n");
    pause();
    aubio_jack_close(jack_setup);
    if (usepitch) {
            send_noteon(curnote,0);
            del_aubio_midi_driver(mdriver);
    }
#else
    usage(stderr, 1);
    outmsg("Compiled without jack output, exiting.\n");
#endif

  } else {
    /* phasevoc */
    debug("Processing ...\n");

    frames = 0;

    while ((signed)overlap_size == aubio_sndfile_read(file, overlap_size, ibuf))
    {
      isonset=0;
      process_func(ibuf->data, obuf->data, overlap_size);
      print(); 
      if (output_filename != NULL) {
        aubio_sndfile_write(fileout,overlap_size,obuf);
      }
      frames++;
    }

    debug("Processed %d frames of %d samples.\n", frames, buffer_size);
    del_aubio_sndfile(file);

    if (output_filename != NULL)
      del_aubio_sndfile(fileout);

  }
}



void send_noteon(int pitch, int velo)
{
    smpl_t mpitch = floor(aubio_freqtomidi(pitch)+.5);
    /* we should check if we use midi here, not jack */
#if ALSA_SUPPORT
    if (usejack) {
        if (velo==0) {
            aubio_midi_event_set_type(event,NOTE_OFF);
        } else {
            aubio_midi_event_set_type(event,NOTE_ON);
        }
        aubio_midi_event_set_channel(event,0);
        aubio_midi_event_set_pitch(event,mpitch);
        aubio_midi_event_set_velocity(event,velo);
        aubio_midi_direct_output(mdriver,event);
    } else 
#endif
    if (!verbose)
    {
        if (velo==0) {
            outmsg("%f\n",frames*overlap_size/(float)samplerate);
        } else {
            outmsg("%f\t%f\t", mpitch,
                        frames*overlap_size/(float)samplerate);
        }
    }
}


void note_append(fvec_t * note_buffer, smpl_t curnote) {
  uint_t i = 0;
  for (i = 0; i < note_buffer->length - 1; i++) { 
      note_buffer->data[0][i] = note_buffer->data[0][i+1];
  }
  note_buffer->data[0][note_buffer->length - 1] = curnote;
  return;
}

uint_t get_note(fvec_t *note_buffer, fvec_t *note_buffer2){
  uint_t i = 0;
  for (i = 0; i < note_buffer->length; i++) { 
      note_buffer2->data[0][i] = note_buffer->data[0][i];
  }
  return vec_median(note_buffer2);
}

#if LASH_SUPPORT

void * lash_thread_main(void *data __attribute__((unused)))
{
        printf("LASH thread running\n");

        while (!lash_main())
                usleep(1000);

        printf("LASH thread finished\n");
        return NULL;
}

int lash_main(void) {
        lash_event_t *lash_event;
        lash_config_t *lash_config;

        while ((lash_event = lash_get_event(aubio_lash_client))) {
                switch (lash_event_get_type(lash_event)) {
                case LASH_Quit:
                        lash_event_destroy(lash_event);
      exit(1);
      return 1;
                case LASH_Restore_Data_Set:
                        lash_send_event(aubio_lash_client, lash_event);
                        break;
                case LASH_Save_Data_Set:
                        save_data();
                        lash_send_event(aubio_lash_client, lash_event);
                        break;
                case LASH_Server_Lost:
                        return 1;
                default:
                        printf("%s: received unknown LASH event of type %d",
                                   __FUNCTION__, lash_event_get_type(lash_event));
                        lash_event_destroy(lash_event);
      break;
                }
        }

        while ((lash_config = lash_get_config(aubio_lash_client))) {
                restore_data(lash_config);
                lash_config_destroy(lash_config);
        }

        return 0;
}

void save_data() {
        lash_config_t *lash_config;

        lash_config = lash_config_new_with_key("threshold");
        lash_config_set_value_double(lash_config, threshold);
        lash_send_config(aubio_lash_client, lash_config);

}

void restore_data(lash_config_t * lash_config) {
        const char *lash_key;

        lash_key = lash_config_get_key(lash_config);

        if (strcmp(lash_key, "threshold") == 0) {
                threshold = lash_config_get_value_double(lash_config);
                return;
        }

}

#endif /* LASH_SUPPORT */