C++ del_fvec函数代码示例

static void *aubiotempo_tilde_del(t_aubiotempo_tilde *x)
{
  if(x->t)      del_aubio_tempo(x->t);
  if(x->output) del_fvec(x->output);
  if(x->vec)    del_fvec(x->vec);
  return 0;
}

//--------------------------------------------------------------
aubioAnalyzer::~aubioAnalyzer(){
	  del_aubio_pitchdetection(pitch_output);
	  del_fvec(in);
      del_fvec(beats);
      del_aubio_beattracking(tracker);
	  aubio_cleanup();
}

void
del_aubio_pitch (aubio_pitch_t * p)
{
  switch (p->type) {
    case aubio_pitcht_yin:
      del_fvec (p->buf);
      del_aubio_pitchyin (p->p_object);
      break;
    case aubio_pitcht_mcomb:
      del_aubio_pvoc (p->pv);
      del_cvec (p->fftgrain);
      del_aubio_filter (p->filter);
      del_aubio_pitchmcomb (p->p_object);
      break;
    case aubio_pitcht_schmitt:
      del_fvec (p->buf);
      del_aubio_pitchschmitt (p->p_object);
      break;
    case aubio_pitcht_fcomb:
      del_fvec (p->buf);
      del_aubio_pitchfcomb (p->p_object);
      break;
    case aubio_pitcht_yinfft:
      del_fvec (p->buf);
      del_aubio_pitchyinfft (p->p_object);
      break;
    case aubio_pitcht_specacf:
      del_fvec (p->buf);
      del_aubio_pitchspecacf (p->p_object);
      break;
    default:
      break;
  }
  AUBIO_FREE (p);
}

int main(){
        /* allocate some memory */
        uint_t win_s      = 1024;                       /* window size */
        fvec_t * in       = new_fvec (win_s); /* input buffer */
        fvec_t * out      = new_fvec (win_s/4);     /* input buffer */
  
        /* allocate fft and other memory space */
        aubio_beattracking_t * tempo  = new_aubio_beattracking(win_s);

        uint_t i = 0;

        smpl_t curtempo, curtempoconf;

        while (i < 10) {
          aubio_beattracking_do(tempo,in,out);
          curtempo = aubio_beattracking_get_bpm(tempo);
          if (curtempo != 0.) {
            fprintf(stdout,"%f\n",curtempo);
            return 1;
          }
          curtempoconf = aubio_beattracking_get_confidence(tempo);
          if (curtempoconf != 0.) {
            fprintf(stdout,"%f\n",curtempo);
            return 1;
          }
          i++;
        };

        del_aubio_beattracking(tempo);
        del_fvec(in);
        del_fvec(out);
        aubio_cleanup();

        return 0;
}

int main ()
{
  uint_t win_s = 64; // window size

  // create biquad filter with `b0`, `b1`, `b2`, `a1`, `a2`
  aubio_filter_t * o = new_aubio_filter_biquad(0.3,0.2,0.1,0.2,0.3);

  fvec_t * in_vec  = new_fvec (win_s); // input buffer
  fvec_t * tmp_vec = new_fvec (win_s); // temporary buffer
  fvec_t * out_vec = new_fvec (win_s); // output buffer

  uint_t times = 100;
  while ( times-- ) {
    // copy to out, then filter out
    aubio_filter_do_outplace(o, in_vec, out_vec);
    // in-place filtering
    aubio_filter_do(o, in_vec);
    // in-place filtering
    aubio_filter_do_filtfilt(o, in_vec, out_vec);
    fvec_print(in_vec);
  }

  // memory clean-up, one for each new
  del_aubio_filter(o);
  del_fvec(in_vec);
  del_fvec(tmp_vec);
  del_fvec(out_vec);

  return 0;
}

int main(){
        /* allocate some memory */
        uint_t win_s      = 4096;                       /* window size        */
        uint_t channels   = 100;                        /* number of channels */
        fvec_t * in       = new_fvec (win_s, channels); /* input buffer       */
        cvec_t * fftgrain = new_cvec (win_s, channels); /* fft norm and phase */
        fvec_t * out      = new_fvec (win_s, channels); /* output buffer      */
        /* allocate fft and other memory space */
        aubio_mfft_t * fft = new_aubio_mfft(win_s,channels);
        /* fill input with some data */
        //printf("initialised\n");
        /* execute stft */
        aubio_mfft_do (fft,in,fftgrain);
        //printf("computed forward\n");
        /* execute inverse fourier transform */
        aubio_mfft_rdo(fft,fftgrain,out);
        //printf("computed backard\n");
        del_aubio_mfft(fft);
        del_fvec(in);
        del_cvec(fftgrain);
        del_fvec(out);
        //printf("memory freed\n");
        aubio_cleanup();
        return 0;
}

int main (void)
{
  uint_t win_s = 16; // window size
  uint_t impulse_at = win_s / 2;
  fvec_t *in = new_fvec (win_s); // input buffer
  fvec_t *out = new_fvec (win_s); // input buffer

  aubio_filter_t *o = new_aubio_filter_c_weighting (44100);
  in->data[impulse_at] = 0.5;
  fvec_print (in);
  aubio_filter_do (o, in);
  fvec_print (in);
  del_aubio_filter (o);

  o = new_aubio_filter_a_weighting (32000);
  in->data[impulse_at] = 0.5;
  fvec_print (in);
  aubio_filter_do_outplace (o, in, out);
  fvec_print (out);

  aubio_filter_set_a_weighting (o, 32000);
  in->data[impulse_at] = 0.5;
  fvec_print (in);
  aubio_filter_do_filtfilt (o, in, out);
  fvec_print (out);

  del_fvec (in);
  del_fvec (out);
  del_aubio_filter (o);
  aubio_cleanup ();

  return 0;
}

int main (int argc, char **argv)
{
  uint_t err = 0;
  if (argc < 2) {
    err = 2;
    PRINT_ERR("not enough arguments\n");
    PRINT_MSG("read a wave file as a mono vector\n");
    PRINT_MSG("usage: %s <source_path> [samplerate] [win_size] [hop_size]\n", argv[0]);
    return err;
  }
  uint_t samplerate = 0;
  if ( argc >= 3 ) samplerate = atoi(argv[2]);
  uint_t win_size = 1024; // window size
  if ( argc >= 4 ) win_size = atoi(argv[3]);
  uint_t hop_size = win_size / 4;
  if ( argc >= 5 ) hop_size = atoi(argv[4]);
  uint_t n_frames = 0, read = 0;

  char_t *source_path = argv[1];
  aubio_source_t * source = new_aubio_source(source_path, samplerate, hop_size);
  if (!source) { err = 1; goto beach; }

  if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(source);

  // create some vectors
  fvec_t * in = new_fvec (hop_size); // input audio buffer
  fvec_t * out = new_fvec (1); // output position

  // create tempo object
  aubio_tempo_t * o = new_aubio_tempo("default", win_size, hop_size, samplerate);

  do {
    // put some fresh data in input vector
    aubio_source_do(source, in, &read);
    // execute tempo
    aubio_tempo_do(o,in,out);
    // do something with the beats
    if (out->data[0] != 0) {
      PRINT_MSG("beat at %.3fms, %.3fs, frame %d, %.2fbpm with confidence %.2f\n",
          aubio_tempo_get_last_ms(o), aubio_tempo_get_last_s(o),
          aubio_tempo_get_last(o), aubio_tempo_get_bpm(o), aubio_tempo_get_confidence(o));
    }
    n_frames += read;
  } while ( read == hop_size );

  PRINT_MSG("read %.2fs, %d frames at %dHz (%d blocks) from %s\n",
      n_frames * 1. / samplerate,
      n_frames, samplerate,
      n_frames / hop_size, source_path);

  // clean up memory
  del_aubio_tempo(o);
  del_fvec(in);
  del_fvec(out);
  del_aubio_source(source);
beach:
  aubio_cleanup();

  return err;
}

int main(){
        /* allocate some memory */
        uint_t win_s      = 1024;                       /* window size */
        fvec_t * in       = new_fvec (win_s); /* input buffer */
        fvec_t * out      = new_fvec (2);     /* input buffer */
        aubio_tempo_t * o  = new_aubio_tempo("complex", win_s, win_s/4, 44100.);
        uint_t i = 0;

        smpl_t curtempo, curtempoconf;

        while (i < 1000) {
          aubio_tempo_do(o,in,out);
          curtempo = aubio_tempo_get_bpm(o);
          if (curtempo != 0.) {
            fprintf(stdout,"%f\n",curtempo);
            return 1;
          }
          curtempoconf = aubio_tempo_get_confidence(o);
          if (curtempoconf != 0.) {
            fprintf(stdout,"%f\n",curtempo);
            return 1;
          }
          i++;
        };

        del_aubio_tempo(o);
        del_fvec(in);
        del_fvec(out);
        aubio_cleanup();

        return 0;
}

void del_aubio_tss(aubio_tss_t *s)
{
  del_fvec(s->theta1);
  del_fvec(s->theta2);
  del_fvec(s->oft1);
  del_fvec(s->oft2);
  del_fvec(s->dev);
  AUBIO_FREE(s);
}

void del_aubio_notes (aubio_notes_t *o) {
  if (o->note_buffer) del_fvec(o->note_buffer);
  if (o->note_buffer2) del_fvec(o->note_buffer2);
  if (o->pitch_output) del_fvec(o->pitch_output);
  if (o->pitch) del_aubio_pitch(o->pitch);
  if (o->onset_output) del_fvec(o->onset_output);
  if (o->onset) del_aubio_onset(o->onset);
  AUBIO_FREE(o);
}

void del_aubio_pvoc(aubio_pvoc_t *pv) {
	del_fvec(pv->data);
	del_fvec(pv->synth);
	del_fvec(pv->dataold);
	del_fvec(pv->synthold);
	del_aubio_mfft(pv->fft);
	AUBIO_FREE(pv->w);
	AUBIO_FREE(pv);
}

void
del_aubio_pitchfcomb (aubio_pitchfcomb_t * p)
{
    del_cvec (p->fftOut);
    del_fvec (p->fftLastPhase);
    del_fvec (p->win);
    del_fvec (p->winput);
    del_aubio_fft (p->fft);
    AUBIO_FREE (p);
}

void
del_aubio_pitchspecacf (aubio_pitchspecacf_t * p)
{
    del_fvec (p->win);
    del_fvec (p->winput);
    del_aubio_fft (p->fft);
    del_fvec (p->sqrmag);
    del_fvec (p->fftout);
    AUBIO_FREE (p);
}

void examples_common_del (void)
{
#ifdef HAVE_JACK
  if (ev.buffer) free(ev.buffer);
#endif
  del_fvec (ibuf);
  del_fvec (obuf);
  aubio_cleanup ();
  fflush(stderr);
  fflush(stdout);
}