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/*
* Copyright (C) 2003-2015 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.
*/
#include "config.h"
#include "mixer/MixerInternal.hxx"
class NullMixer final : public Mixer {
/**
* The current volume in percent (0..100).
*/
unsigned volume;
public:
NullMixer(MixerListener &_listener)
:Mixer(null_mixer_plugin, _listener),
volume(100)
{
}
/* virtual methods from class Mixer */
bool Open(gcc_unused Error &error) override {
return true;
}
void Close() override {
}
int GetVolume(gcc_unused Error &error) override {
return volume;
}
bool SetVolume(unsigned _volume, gcc_unused Error &error) override {
volume = _volume;
return true;
}
};
static Mixer *
null_mixer_init(gcc_unused EventLoop &event_loop,
gcc_unused AudioOutput &ao,
MixerListener &listener,
gcc_unused const ConfigBlock &block,
gcc_unused Error &error)
{
return new NullMixer(listener);
}
const MixerPlugin null_mixer_plugin = {
null_mixer_init,
true,
};
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