103 lines
2.0 KiB
C++
103 lines
2.0 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
// Copyright The Music Player Daemon Project
|
|
|
|
/*
|
|
* Glue functions for controlling the audio outputs over the MPD
|
|
* protocol. These functions perform extra validation on all
|
|
* parameters, because they might be from an untrusted source.
|
|
*
|
|
*/
|
|
|
|
#include "OutputCommand.hxx"
|
|
#include "Client.hxx"
|
|
#include "mixer/Mixer.hxx"
|
|
#include "mixer/Memento.hxx"
|
|
#include "mixer/Listener.hxx"
|
|
#include "protocol/IdleFlags.hxx"
|
|
#include "Partition.hxx"
|
|
|
|
extern unsigned audio_output_state_version;
|
|
|
|
bool
|
|
audio_output_enable_index(Partition &partition,
|
|
unsigned idx)
|
|
{
|
|
auto &outputs = partition.outputs;
|
|
if (idx >= outputs.Size())
|
|
return false;
|
|
|
|
auto &ao = outputs.Get(idx);
|
|
if (!ao.LockSetEnabled(true))
|
|
return true;
|
|
|
|
partition.EmitIdle(IDLE_OUTPUT);
|
|
|
|
auto *mixer = ao.GetMixer();
|
|
if (mixer != nullptr) {
|
|
partition.mixer_memento.InvalidateHardwareVolume();
|
|
mixer->listener.OnMixerChanged();
|
|
}
|
|
|
|
ao.GetClient().ApplyEnabled();
|
|
|
|
++audio_output_state_version;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
audio_output_disable_index(Partition &partition,
|
|
unsigned idx)
|
|
{
|
|
auto &outputs = partition.outputs;
|
|
if (idx >= outputs.Size())
|
|
return false;
|
|
|
|
auto &ao = outputs.Get(idx);
|
|
if (!ao.LockSetEnabled(false))
|
|
return true;
|
|
|
|
partition.EmitIdle(IDLE_OUTPUT);
|
|
|
|
auto *mixer = ao.GetMixer();
|
|
if (mixer != nullptr) {
|
|
mixer->LockClose();
|
|
partition.mixer_memento.InvalidateHardwareVolume();
|
|
mixer->listener.OnMixerChanged();
|
|
}
|
|
|
|
ao.GetClient().ApplyEnabled();
|
|
|
|
++audio_output_state_version;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
audio_output_toggle_index(Partition &partition,
|
|
unsigned idx)
|
|
{
|
|
auto &outputs = partition.outputs;
|
|
if (idx >= outputs.Size())
|
|
return false;
|
|
|
|
auto &ao = outputs.Get(idx);
|
|
const bool enabled = ao.LockToggleEnabled();
|
|
partition.EmitIdle(IDLE_OUTPUT);
|
|
|
|
if (!enabled) {
|
|
auto *mixer = ao.GetMixer();
|
|
if (mixer != nullptr) {
|
|
mixer->LockClose();
|
|
partition.mixer_memento.InvalidateHardwareVolume();
|
|
mixer->listener.OnMixerChanged();
|
|
}
|
|
}
|
|
|
|
ao.GetClient().ApplyEnabled();
|
|
|
|
++audio_output_state_version;
|
|
|
|
return true;
|
|
}
|