Changeset ba303e8


Ignore:
Timestamp:
Jul 1, 2016, 3:27:47 PM (4 years ago)
Author:
Paul Brossier <piem@piem.org>
Branches:
feature/autosink, feature/constantq, feature/pitchshift, feature/pydocstrings, feature/timestretch, master, pitchshift, sampler, timestretch, yinfft+
Children:
dd18484
Parents:
4b9443c4
Message:

examples/aubionotes.c: use note aubio_notes object

File:
1 edited

Legend:

Unmodified
Added
Removed
  • examples/aubionotes.c

    r4b9443c4 rba303e8  
    1919*/
    2020
    21 #define AUBIO_UNSTABLE 1 // for fvec_median
    2221#include "utils.h"
    2322#define PROG_HAS_PITCH 1
     
    2726#include "parse_args.h"
    2827
    29 uint_t median = 6;
    30 
    31 fvec_t *note_buffer;
    32 fvec_t *note_buffer2;
    33 
    34 smpl_t curnote = 0.;
    35 smpl_t newnote = 0.;
    36 uint_t isready = 0;
    37 
    38 aubio_pitch_t *pitch;
    39 aubio_onset_t *o;
    40 fvec_t *onset;
    41 fvec_t *pitch_obuf;
    42 
    43 /** append new note candidate to the note_buffer and return filtered value. we
    44  * need to copy the input array as fvec_median destroy its input data.*/
    45 void note_append (fvec_t * note_buffer, smpl_t curnote);
    46 uint_t get_note (fvec_t * note_buffer, fvec_t * note_buffer2);
     28aubio_notes_t *notes;
     29uint_t lastnote = 0;
    4730
    4831void process_block (fvec_t *ibuf, fvec_t *obuf)
    4932{
    50   smpl_t new_pitch, curlevel;
    51   fvec_zeros(obuf);
    52   aubio_onset_do(o, ibuf, onset);
    53 
    54   aubio_pitch_do (pitch, ibuf, pitch_obuf);
    55   new_pitch = fvec_get_sample(pitch_obuf, 0);
    56   if(median){
    57     note_append(note_buffer, new_pitch);
     33  aubio_notes_do (notes, ibuf, obuf);
     34  // did we get a note off?
     35  if (obuf->data[2] != 0) {
     36    send_noteon(obuf->data[2], 0);
    5837  }
    59 
    60   /* curlevel is negatif or 1 if silence */
    61   curlevel = aubio_level_detection(ibuf, silence_threshold);
    62   if (fvec_get_sample(onset, 0)) {
    63     /* test for silence */
    64     if (curlevel == 1.) {
    65       if (median) isready = 0;
    66       /* send note off */
    67       send_noteon(curnote,0);
    68     } else {
    69       if (median) {
    70         isready = 1;
    71       } else {
    72         /* kill old note */
    73         send_noteon(curnote,0);
    74         /* get and send new one */
    75         send_noteon(new_pitch,127+(int)floor(curlevel));
    76         curnote = new_pitch;
    77       }
    78     }
    79   } else {
    80     if (median) {
    81       if (isready > 0)
    82         isready++;
    83       if (isready == median)
    84       {
    85         /* kill old note */
    86         send_noteon(curnote,0);
    87         newnote = get_note(note_buffer, note_buffer2);
    88         curnote = newnote;
    89         /* get and send new one */
    90         if (curnote>45){
    91           send_noteon(curnote,127+(int)floor(curlevel));
    92         }
    93       }
    94     } // if median
     38  // did we get a note on?
     39  if (obuf->data[0] != 0) {
     40    send_noteon(obuf->data[0], obuf->data[1]);
     41    lastnote = (uint_t) floor(obuf->data[0]);
    9542  }
    9643}
     
    9946{
    10047  //if (verbose) outmsg("%f\n",pitch_obuf->data[0]);
    101 }
    102 
    103 void
    104 note_append (fvec_t * note_buffer, smpl_t curnote)
    105 {
    106   uint_t i = 0;
    107   for (i = 0; i < note_buffer->length - 1; i++) {
    108     note_buffer->data[i] = note_buffer->data[i + 1];
    109   }
    110   note_buffer->data[note_buffer->length - 1] = curnote;
    111   return;
    112 }
    113 
    114 uint_t
    115 get_note (fvec_t * note_buffer, fvec_t * note_buffer2)
    116 {
    117   uint_t i;
    118   for (i = 0; i < note_buffer->length; i++) {
    119     note_buffer2->data[i] = note_buffer->data[i];
    120   }
    121   return fvec_median (note_buffer2);
    12248}
    12349
     
    13763  verbmsg ("tolerance: %f\n", pitch_tolerance);
    13864
    139   o = new_aubio_onset (onset_method, buffer_size, hop_size, samplerate);
    140   if (onset_threshold != 0.) aubio_onset_set_threshold (o, onset_threshold);
    141   onset = new_fvec (1);
    142 
    143   pitch = new_aubio_pitch (pitch_method, buffer_size * 4, hop_size, samplerate);
    144   if (pitch_tolerance != 0.) aubio_pitch_set_tolerance (pitch, pitch_tolerance);
    145   pitch_obuf = new_fvec (1);
    146 
    147   if (median) {
    148       note_buffer = new_fvec (median);
    149       note_buffer2 = new_fvec (median);
    150   }
     65  notes = new_aubio_notes ("default", buffer_size, hop_size, samplerate);
    15166
    15267  examples_common_process((aubio_process_func_t)process_block, process_print);
    15368
    15469  // send a last note off
    155   send_noteon (curnote, 0);
     70  send_noteon (lastnote, 0);
    15671
    157   del_aubio_pitch (pitch);
    158   if (median) {
    159       del_fvec (note_buffer);
    160       del_fvec (note_buffer2);
    161   }
    162   del_fvec (pitch_obuf);
     72  del_aubio_notes (notes);
    16373
    16474  examples_common_del();
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