effect.h

   1 /*
   2
   3     PROGRAM_NAME PROGRAM_VERSION - PROGRAM_DESCRIPTION
   4
   5     Copyright (C) 2003 Angel Ortega <angel@triptico.com>
   6
   7     This program is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU General Public License
   9     as published by the Free Software Foundation; either version 2
  10     of the License, or (at your option) any later version.
  11
  12     This program is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15     GNU General Public License for more details.
  16
  17     You should have received a copy of the GNU General Public License
  18     along with this program; if not, write to the Free Software
  19     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20
  21     http://www.triptico.com
  22
  23 */
  24
  25
  26 struct effect_delay
  27 {
  28         float * lbuffer;        /* left wave buffer */
  29         float * rbuffer;        /* right wave buffer */
  30         int size;               /* buffer (delay) size */
  31         float gain;             /* effect gain */
  32
  33         int cursor;             /* current buffer position */
  34
  35         double depth;           /* lfo depth */
  36         double lfo_freq;        /* lfo frequency (in Hz) */
  37         double lfo_inc;         /* lfo increment */
  38
  39         double llfo;            /* left lfo value */
  40         double rlfo;            /* right lfo value */
  41 };
  42
  43 void init_delay(struct effect_delay * e, int size, float gain,
  44         double depth, double lfo_freq, double llfo, double rlfo);
  45
  46 void process_delay(struct effect_delay * e, float * lsample, float * rsample);
  47 void process_comb(struct effect_delay * e, float * lsample, float * rsample);
  48 void process_allpass(struct effect_delay * e, float * lsample, float * rsample);
  49 void process_flanger(struct effect_delay * e, float * lsample, float * rsample);
  50 void process_wobble(struct effect_delay * e, float * lsample, float * rsample);