flac: Saner EOF handling
[cmus.git] / mixer.h
blobe60e059eb4179864c62580fd2df2aba5be70ca7d
1 /*
2 * Copyright 2004 Timo Hirvonen
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
17 * 02111-1307, USA.
20 #ifndef _MIXER_H
21 #define _MIXER_H
23 #define NR_MIXER_FDS 4
25 struct mixer_plugin_ops {
26 int (*init)(void);
27 int (*exit)(void);
28 int (*open)(int *volume_max);
29 int (*close)(void);
30 int (*get_fds)(int *fds);
31 int (*set_volume)(int l, int r);
32 int (*get_volume)(int *l, int *r);
33 int (*set_option)(int key, const char *val);
34 int (*get_option)(int key, char **val);
37 /* symbols exported by plugin */
38 extern const struct mixer_plugin_ops op_mixer_ops;
39 extern const char * const op_mixer_options[];
41 #endif