You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
890 B
C++
49 lines
890 B
C++
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
// Copyright The Music Player Daemon Project
|
|
|
|
#include "NullMixerPlugin.hxx"
|
|
#include "mixer/Mixer.hxx"
|
|
|
|
class NullMixer final : public Mixer {
|
|
/**
|
|
* The current volume in percent (0..100).
|
|
*/
|
|
unsigned volume;
|
|
|
|
public:
|
|
explicit NullMixer(MixerListener &_listener)
|
|
:Mixer(null_mixer_plugin, _listener),
|
|
volume(100)
|
|
{
|
|
}
|
|
|
|
/* virtual methods from class Mixer */
|
|
void Open() override {
|
|
}
|
|
|
|
void Close() noexcept override {
|
|
}
|
|
|
|
int GetVolume() override {
|
|
return volume;
|
|
}
|
|
|
|
void SetVolume(unsigned _volume) override {
|
|
volume = _volume;
|
|
}
|
|
};
|
|
|
|
static Mixer *
|
|
null_mixer_init([[maybe_unused]] EventLoop &event_loop,
|
|
[[maybe_unused]] AudioOutput &ao,
|
|
MixerListener &listener,
|
|
[[maybe_unused]] const ConfigBlock &block)
|
|
{
|
|
return new NullMixer(listener);
|
|
}
|
|
|
|
const MixerPlugin null_mixer_plugin = {
|
|
null_mixer_init,
|
|
true,
|
|
};
|