jack_mixer/src/scale.h

60 lines
1.5 KiB
C

/* -*- Mode: C ; c-basic-offset: 2 -*- */
/*****************************************************************************
*
* This file is part of jack_mixer
*
* Copyright (C) 2006 Nedko Arnaudov <nedko@arnaudov.name>
*
* This program 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; version 2 of the License
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*****************************************************************************/
#ifndef _SCALE_H
#define _SCALE_H
typedef void * jack_mixer_scale_t;
jack_mixer_scale_t
scale_create();
bool
scale_add_threshold(
jack_mixer_scale_t scale,
float db,
float scale_value);
void
scale_remove_thresholds(
jack_mixer_scale_t scale);
void
scale_calculate_coefficients(
jack_mixer_scale_t scale);
double
scale_db_to_scale(
jack_mixer_scale_t scale,
double db);
double
scale_scale_to_db(
jack_mixer_scale_t scale,
double scale_value);
void
scale_destroy(
jack_mixer_scale_t scale);
#endif /* #ifndef _SCALE_H */