00001 /* 00002 * Copyright (C) 2003-2009 The Music Player Daemon Project 00003 * http://www.musicpd.org 00004 * 00005 * This program is free software; you can redistribute it and/or modify 00006 * it under the terms of the GNU General Public License as published by 00007 * the Free Software Foundation; either version 2 of the License, or 00008 * (at your option) any later version. 00009 * 00010 * This program is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 * GNU General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU General Public License along 00016 * with this program; if not, write to the Free Software Foundation, Inc., 00017 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 00018 */ 00019 00020 #ifndef MPD_VOLUME_H 00021 #define MPD_VOLUME_H 00022 00023 #include <stdbool.h> 00024 #include <stdio.h> 00025 00026 #define VOLUME_MIXER_OSS "oss" 00027 #define VOLUME_MIXER_ALSA "alsa" 00028 #define VOLUME_MIXER_SOFTWARE "software" 00029 #define VOLUME_MIXER_HARDWARE "hardware" 00030 #define VOLUME_MIXER_DISABLED "disabled" 00031 00032 void volume_init(void); 00033 00034 void volume_finish(void); 00035 00036 int volume_level_get(void); 00037 00038 bool volume_level_change(int change, bool rel); 00039 00040 void read_sw_volume_state(FILE *fp); 00041 00042 void save_sw_volume_state(FILE *fp); 00043 00044 #endif