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/*
* 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.
*/
/** \file
*
* Functions which manipulate a #mixer object.
*/
#ifndef MPD_MIXER_CONTROL_H
#define MPD_MIXER_CONTROL_H
#include <glib.h>
#include <stdbool.h>
struct mixer;
struct mixer_plugin;
struct config_param;
struct mixer *
mixer_new(const struct mixer_plugin *plugin, void *ao,
const struct config_param *param,
GError **error_r);
void
mixer_free(struct mixer *mixer);
bool
mixer_open(struct mixer *mixer, GError **error_r);
void
mixer_close(struct mixer *mixer);
/**
* Close the mixer unless the plugin's "global" flag is set. This is
* called when the #audio_output is closed.
*/
void
mixer_auto_close(struct mixer *mixer);
int
mixer_get_volume(struct mixer *mixer, GError **error_r);
bool
mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r);
#endif
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