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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "application/IApplicationComponent.h"
class CAction;
class CApplication;
class CSetting;
class CSettings;
class TiXmlNode;
/*!
* \brief Class handling application support for audio volume management.
*/
class CApplicationVolumeHandling : public IApplicationComponent
{
friend class CApplication;
public:
// replay gain settings struct for quick access by the player multiple
// times per second (saves doing settings lookup)
struct ReplayGainSettings
{
int iPreAmp;
int iNoGainPreAmp;
int iType;
bool bAvoidClipping;
};
float GetVolumePercent() const;
float GetVolumeRatio() const;
bool IsMuted() const;
void SetVolume(float iValue, bool isPercentage = true);
void SetMute(bool mute);
void ToggleMute(void);
const ReplayGainSettings& GetReplayGainSettings() const { return m_replayGainSettings; }
static constexpr float VOLUME_MINIMUM = 0.0f; // -60dB
static constexpr float VOLUME_MAXIMUM = 1.0f; // 0dB
static constexpr float VOLUME_DYNAMIC_RANGE = 90.0f; // 60dB
bool Load(const TiXmlNode* settings);
bool Save(TiXmlNode* settings) const;
bool OnSettingChanged(const CSetting& setting);
protected:
bool IsMutedInternal() const { return m_muted; }
void ShowVolumeBar(const CAction* action = nullptr);
void CacheReplayGainSettings(const CSettings& settings);
void Mute();
void UnMute();
void SetHardwareVolume(float hardwareVolume);
void VolumeChanged();
bool m_muted = false;
float m_volumeLevel = VOLUME_MAXIMUM;
ReplayGainSettings m_replayGainSettings;
};
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