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