shithub: aubio

ref: 6107f4ccc994ff015df0647bbf54a784e8f68be1
dir: /src/cvec.c/

/*
  Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>

  This file is part of aubio.

  aubio is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  aubio is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with aubio.  If not, see <http://www.gnu.org/licenses/>.

*/

#include "aubio_priv.h"
#include "cvec.h"

cvec_t * new_cvec( uint_t length, uint_t channels) {
  cvec_t * s = AUBIO_NEW(cvec_t);
  uint_t i,j;
  s->channels = channels;
  s->length = length/2 + 1;
  s->norm = AUBIO_ARRAY(smpl_t*,s->channels);
  s->phas = AUBIO_ARRAY(smpl_t*,s->channels);
  for (i=0; i< s->channels; i++) {
    s->norm[i] = AUBIO_ARRAY(smpl_t,s->length);
    s->phas[i] = AUBIO_ARRAY(smpl_t,s->length);
    for (j=0; j< s->length; j++) {
      s->norm[i][j]=0.;
      s->phas[i][j]=0.;
    }
  }
  return s;
}

void del_cvec(cvec_t *s) {
  uint_t i;
  for (i=0; i<s->channels; i++) {
    AUBIO_FREE(s->norm[i]);
    AUBIO_FREE(s->phas[i]);
  }
  AUBIO_FREE(s->norm);
  AUBIO_FREE(s->phas);
  AUBIO_FREE(s);
}

void cvec_write_norm(cvec_t *s, smpl_t data, uint_t channel, uint_t position) {
  s->norm[channel][position] = data;
}
void cvec_write_phas(cvec_t *s, smpl_t data, uint_t channel, uint_t position) {
  s->phas[channel][position] = data;
}
smpl_t cvec_read_norm(cvec_t *s, uint_t channel, uint_t position) {
  return s->norm[channel][position];
}
smpl_t cvec_read_phas(cvec_t *s, uint_t channel, uint_t position) {
  return s->phas[channel][position];
}
void cvec_put_norm_channel(cvec_t *s, smpl_t * data, uint_t channel) {
  s->norm[channel] = data;
}
void cvec_put_phas_channel(cvec_t *s, smpl_t * data, uint_t channel) {
  s->phas[channel] = data;
}
smpl_t * cvec_get_norm_channel(cvec_t *s, uint_t channel) {
  return s->norm[channel];
}
smpl_t * cvec_get_phas_channel(cvec_t *s, uint_t channel) {
  return s->phas[channel];
}
smpl_t ** cvec_get_norm(cvec_t *s) {
  return s->norm;
}
smpl_t ** cvec_get_phas(cvec_t *s) {
  return s->phas;
}

/* helper functions */

void cvec_print(cvec_t *s) {
  uint_t i,j;
  for (i=0; i< s->channels; i++) {
    AUBIO_MSG("norm: ");
    for (j=0; j< s->length; j++) {
      AUBIO_MSG(AUBIO_SMPL_FMT " ", s->norm[i][j]);
    }
    AUBIO_MSG("\n");
    AUBIO_MSG("phas: ");
    for (j=0; j< s->length; j++) {
      AUBIO_MSG(AUBIO_SMPL_FMT " ", s->phas[i][j]);
    }
    AUBIO_MSG("\n");
  }
}

void cvec_set(cvec_t *s, smpl_t val) {
  uint_t i,j;
  for (i=0; i< s->channels; i++) {
    for (j=0; j< s->length; j++) {
      s->norm[i][j] = val;
    }
  }
}

void cvec_zeros(cvec_t *s) {
  cvec_set(s, 0.);
}

void cvec_ones(cvec_t *s) {
  cvec_set(s, 1.);
}