64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
/*
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* Copyright (C) 2003-2010 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/** \file
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*
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* Functions which manipulate a #mixer object.
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*/
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#ifndef MPD_MIXER_CONTROL_H
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#define MPD_MIXER_CONTROL_H
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#include <glib.h>
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#include <stdbool.h>
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struct mixer;
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struct mixer_plugin;
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struct config_param;
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struct mixer *
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mixer_new(const struct mixer_plugin *plugin, void *ao,
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const struct config_param *param,
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GError **error_r);
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void
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mixer_free(struct mixer *mixer);
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bool
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mixer_open(struct mixer *mixer, GError **error_r);
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void
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mixer_close(struct mixer *mixer);
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/**
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* Close the mixer unless the plugin's "global" flag is set. This is
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* called when the #audio_output is closed.
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*/
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void
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mixer_auto_close(struct mixer *mixer);
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int
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mixer_get_volume(struct mixer *mixer, GError **error_r);
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bool
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mixer_set_volume(struct mixer *mixer, unsigned volume, GError **error_r);
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#endif
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