mpv/libaf/equalizer.h

/*
 * Copyright (C) 2002 Anders Johansson ajh@atri.curtin.edu.au
 *
 * This file is part of MPlayer.
 *
 * MPlayer 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 2 of the License, or
 * (at your option) any later version.
 *
 * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef MPLAYER_EQUALIZER_H
#define MPLAYER_EQUALIZER_H

/* Equalizer plugin header file defines struct used for setting or
   getting the gain of a specific channel and frequency */

typedef struct equalizer_s
{
  float gain;   	// Gain in dB  -15 - 15 
  int	channel; 	// Channel number 0 - 5 
  int 	band;		// Frequency band 0 - 9
}equalizer_t;

/* The different frequency bands are:
nr.    	center frequency
0  	31.25 Hz
1 	62.50 Hz
2	125.0 Hz
3	250.0 Hz
4	500.0 Hz
5	1.000 kHz
6	2.000 kHz
7	4.000 kHz
8	8.000 kHz
9       16.00 kHz
*/

#endif /* MPLAYER_EQUALIZER_H */