scale.h

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*****************************************************************************
   3  *
   4  *   This file is part of jack_mixer
   5  *
   6  *   Copyright (C) 2006 Nedko Arnaudov <nedko@arnaudov.name>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; version 2 of the License
  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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  *****************************************************************************/
  22
  23 #ifndef JACK_SCALE_H__DAEB51D8_5861_40F2_92E4_24CA495A384D__INCLUDED
  24 #define JACK_SCALE_H__DAEB51D8_5861_40F2_92E4_24CA495A384D__INCLUDED
  25
  26 typedef void * jack_mixer_scale_t;
  27
  28 jack_mixer_scale_t
  29 scale_create();
  30
  31 bool
  32 scale_add_threshold(
  33   jack_mixer_scale_t scale,
  34   float db,
  35   float scale_value);
  36
  37 void
  38 scale_remove_thresholds(
  39   jack_mixer_scale_t scale);
  40
  41 void
  42 scale_calculate_coefficients(
  43   jack_mixer_scale_t scale);
  44
  45 double
  46 scale_db_to_scale(
  47   jack_mixer_scale_t scale,
  48   double db);
  49
  50 double
  51 scale_scale_to_db(
  52   jack_mixer_scale_t scale,
  53   double scale_value);
  54
  55 void
  56 scale_destroy(
  57   jack_mixer_scale_t scale);
  58
  59 #endif /* #ifndef JACK_SCALE_H__DAEB51D8_5861_40F2_92E4_24CA495A384D__INCLUDED */