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volume-meter.hpp
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#pragma once
#include <QWidget>
#include <QPaintEvent>
#include <QSharedPointer>
#include <QTimer>
#include <QMutex>
#include <QList>
#include <QApplication>
#include <QColor>
#include <QPainter>
#include "obs.h"
class VolumeMeterTimer;
class VolumeMeter : public QWidget {
Q_OBJECT
Q_PROPERTY(QColor backgroundNominalColor READ getBackgroundNominalColor WRITE setBackgroundNominalColor DESIGNABLE true)
Q_PROPERTY(QColor backgroundWarningColor READ getBackgroundWarningColor WRITE setBackgroundWarningColor DESIGNABLE true)
Q_PROPERTY(QColor backgroundErrorColor READ getBackgroundErrorColor WRITE setBackgroundErrorColor DESIGNABLE true)
Q_PROPERTY(QColor foregroundNominalColor READ getForegroundNominalColor WRITE setForegroundNominalColor DESIGNABLE true)
Q_PROPERTY(QColor foregroundWarningColor READ getForegroundWarningColor WRITE setForegroundWarningColor DESIGNABLE true)
Q_PROPERTY(QColor foregroundErrorColor READ getForegroundErrorColor WRITE setForegroundErrorColor DESIGNABLE true)
Q_PROPERTY(QColor clipColor READ getClipColor WRITE setClipColor DESIGNABLE true)
Q_PROPERTY(QColor magnitudeColor READ getMagnitudeColor WRITE setMagnitudeColor DESIGNABLE true)
Q_PROPERTY(QColor majorTickColor READ getMajorTickColor WRITE setMajorTickColor DESIGNABLE true)
Q_PROPERTY(QColor minorTickColor READ getMinorTickColor WRITE setMinorTickColor DESIGNABLE true)
// Levels are denoted in dBFS.
Q_PROPERTY(qreal minimumLevel READ getMinimumLevel WRITE setMinimumLevel DESIGNABLE true)
Q_PROPERTY(qreal warningLevel READ getWarningLevel WRITE setWarningLevel DESIGNABLE true)
Q_PROPERTY(qreal errorLevel READ getErrorLevel WRITE setErrorLevel DESIGNABLE true)
Q_PROPERTY(qreal clipLevel READ getClipLevel WRITE setClipLevel DESIGNABLE true)
Q_PROPERTY(qreal minimumInputLevel READ getMinimumInputLevel WRITE setMinimumInputLevel DESIGNABLE true)
// Rates are denoted in dB/second.
Q_PROPERTY(qreal peakDecayRate READ getPeakDecayRate WRITE setPeakDecayRate DESIGNABLE true)
// Time in seconds for the VU meter to integrate over.
Q_PROPERTY(qreal magnitudeIntegrationTime READ getMagnitudeIntegrationTime WRITE setMagnitudeIntegrationTime DESIGNABLE true)
// Duration is denoted in seconds.
Q_PROPERTY(qreal peakHoldDuration READ getPeakHoldDuration WRITE setPeakHoldDuration DESIGNABLE true)
Q_PROPERTY(qreal inputPeakHoldDuration READ getInputPeakHoldDuration WRITE setInputPeakHoldDuration DESIGNABLE true)
private slots:
void ClipEnding();
private:
obs_volmeter_t *obs_volmeter;
bool showOutputMeter;
static QWeakPointer<VolumeMeterTimer> updateTimer;
QSharedPointer<VolumeMeterTimer> updateTimerRef;
inline void resetLevels();
inline void handleChannelCofigurationChange();
inline bool detectIdle(uint64_t ts);
inline void calculateBallistics(uint64_t ts, qreal timeSinceLastRedraw = 0.0);
inline void calculateBallisticsForChannel(int channelNr, uint64_t ts, qreal timeSinceLastRedraw);
void paintInputMeter(QPainter &painter, int x, int y, int width, int height, float peakHold);
void paintHMeter(QPainter &painter, int x, int y, int width, int height, float magnitude, float peak, float peakHold);
void paintHTicks(QPainter &painter, int x, int y, int width, int height);
void paintVMeter(QPainter &painter, int x, int y, int width, int height, float magnitude, float peak, float peakHold);
void paintVTicks(QPainter &painter, int x, int y, int height);
inline void doLayout();
bool needLayoutChange();
QMutex dataMutex;
uint64_t currentLastUpdateTime = 0;
float currentMagnitude[MAX_AUDIO_CHANNELS];
float currentPeak[MAX_AUDIO_CHANNELS];
float currentInputPeak[MAX_AUDIO_CHANNELS];
QPixmap *tickPaintCache = nullptr;
int displayNrAudioChannels = 0;
float displayMagnitude[MAX_AUDIO_CHANNELS];
float displayPeak[MAX_AUDIO_CHANNELS];
float displayPeakHold[MAX_AUDIO_CHANNELS];
uint64_t displayPeakHoldLastUpdateTime[MAX_AUDIO_CHANNELS];
float displayInputPeakHold[MAX_AUDIO_CHANNELS];
uint64_t displayInputPeakHoldLastUpdateTime[MAX_AUDIO_CHANNELS];
QFont tickFont;
QColor backgroundNominalColor;
QColor backgroundWarningColor;
QColor backgroundErrorColor;
QColor foregroundNominalColor;
QColor foregroundWarningColor;
QColor foregroundErrorColor;
QColor clipColor;
QColor magnitudeColor;
QColor majorTickColor;
QColor minorTickColor;
qreal minimumLevel;
qreal warningLevel;
qreal errorLevel;
qreal clipLevel;
qreal minimumInputLevel;
qreal peakDecayRate;
qreal magnitudeIntegrationTime;
qreal peakHoldDuration;
qreal inputPeakHoldDuration;
uint64_t lastRedrawTime = 0;
int channels = 0;
bool clipping = false;
bool vertical;
public:
explicit VolumeMeter(QWidget *parent = nullptr, obs_volmeter_t *obs_volmeter = nullptr, bool vertical = false);
~VolumeMeter();
void setLevels(const float magnitude[MAX_AUDIO_CHANNELS], const float peak[MAX_AUDIO_CHANNELS],
const float inputPeak[MAX_AUDIO_CHANNELS]);
QColor getBackgroundNominalColor() const;
void setBackgroundNominalColor(QColor c);
QColor getBackgroundWarningColor() const;
void setBackgroundWarningColor(QColor c);
QColor getBackgroundErrorColor() const;
void setBackgroundErrorColor(QColor c);
QColor getForegroundNominalColor() const;
void setForegroundNominalColor(QColor c);
QColor getForegroundWarningColor() const;
void setForegroundWarningColor(QColor c);
QColor getForegroundErrorColor() const;
void setForegroundErrorColor(QColor c);
QColor getClipColor() const;
void setClipColor(QColor c);
QColor getMagnitudeColor() const;
void setMagnitudeColor(QColor c);
QColor getMajorTickColor() const;
void setMajorTickColor(QColor c);
QColor getMinorTickColor() const;
void setMinorTickColor(QColor c);
qreal getMinimumLevel() const;
void setMinimumLevel(qreal v);
qreal getWarningLevel() const;
void setWarningLevel(qreal v);
qreal getErrorLevel() const;
void setErrorLevel(qreal v);
qreal getClipLevel() const;
void setClipLevel(qreal v);
qreal getMinimumInputLevel() const;
void setMinimumInputLevel(qreal v);
qreal getPeakDecayRate() const;
void setPeakDecayRate(qreal v);
qreal getMagnitudeIntegrationTime() const;
void setMagnitudeIntegrationTime(qreal v);
qreal getPeakHoldDuration() const;
void setPeakHoldDuration(qreal v);
qreal getInputPeakHoldDuration() const;
void setInputPeakHoldDuration(qreal v);
void setPeakMeterType(enum obs_peak_meter_type peakMeterType);
virtual void mousePressEvent(QMouseEvent *event) override;
virtual void wheelEvent(QWheelEvent *event) override;
void ShowOutputMeter(bool output);
protected:
void paintEvent(QPaintEvent *event) override;
};
class VolumeMeterTimer : public QTimer {
Q_OBJECT
public:
inline VolumeMeterTimer() : QTimer() {}
void AddVolControl(VolumeMeter *meter);
void RemoveVolControl(VolumeMeter *meter);
protected:
void timerEvent(QTimerEvent *event) override;
QList<VolumeMeter *> volumeMeters;
};