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Diffstat (limited to 'src/MixerPlugin.hxx')
-rw-r--r-- | src/MixerPlugin.hxx | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/src/MixerPlugin.hxx b/src/MixerPlugin.hxx deleted file mode 100644 index db6fb2471..000000000 --- a/src/MixerPlugin.hxx +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Copyright (C) 2003-2013 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 - * - * This header declares the mixer_plugin class. It should not be - * included directly; use MixerInternal.hxx instead in mixer - * implementations. - */ - -#ifndef MPD_MIXER_PLUGIN_HXX -#define MPD_MIXER_PLUGIN_HXX - -struct config_param; -class Mixer; -class Error; - -struct mixer_plugin { - /** - * Alocates and configures a mixer device. - * - * @param ao the pointer returned by audio_output_plugin.init - * @param param the configuration section - * @param error_r location to store the error occurring, or - * nullptr to ignore errors - * @return a mixer object, or nullptr on error - */ - Mixer *(*init)(void *ao, const config_param ¶m, - Error &error); - - /** - * Finish and free mixer data - */ - void (*finish)(Mixer *data); - - /** - * Open mixer device - * - * @param error_r location to store the error occurring, or - * nullptr to ignore errors - * @return true on success, false on error - */ - bool (*open)(Mixer *data, Error &error); - - /** - * Close mixer device - */ - void (*close)(Mixer *data); - - /** - * Reads the current volume. - * - * @param error_r location to store the error occurring, or - * nullptr to ignore errors - * @return the current volume (0..100 including) or -1 if - * unavailable or on error (error set, mixer will be closed) - */ - int (*get_volume)(Mixer *mixer, Error &error); - - /** - * Sets the volume. - * - * @param error_r location to store the error occurring, or - * nullptr to ignore errors - * @param volume the new volume (0..100 including) - * @return true on success, false on error - */ - bool (*set_volume)(Mixer *mixer, unsigned volume, - Error &error); - - /** - * If true, then the mixer is automatically opened, even if - * its audio output is not open. If false, then the mixer is - * disabled as long as its audio output is closed. - */ - bool global; -}; - -#endif |