path: root/src/mixer_api.h

/*
 * Copyright (C) 2003-2009 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * 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; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef MPD_MIXER_H
#define MPD_MIXER_H

#include "mixer_plugin.h"

/*
 * list of currently implemented mixers
 */

extern const struct mixer_plugin alsa_mixer;
extern const struct mixer_plugin oss_mixer;
extern const struct mixer_plugin pulse_mixer;

struct mixer {
	const struct mixer_plugin *plugin;
};

static inline void
mixer_init(struct mixer *mixer, const struct mixer_plugin *plugin)
{
	mixer->plugin = plugin;
}

struct mixer *
mixer_new(const struct mixer_plugin *plugin, const struct config_param *param);

void
mixer_free(struct mixer *mixer);

bool mixer_open(struct mixer *mixer);
void mixer_close(struct mixer *mixer);

static inline int
mixer_get_volume(struct mixer *mixer)
{
	return mixer->plugin->get_volume(mixer);
}

static inline bool
mixer_set_volume(struct mixer *mixer, unsigned volume)
{
	return mixer->plugin->set_volume(mixer, volume);
}

void mixer_disable_all(void);

#endif