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MeterProcessor Class Reference
A meter processor for a single GUI element. More...
#include <src/gui/backend/meter.h>
Inheritance diagram for MeterProcessor:
Collaboration diagram for MeterProcessor:
Public Types | |
| using | MeterPortVariant = std::variant<dsp::MidiPort, dsp::AudioPort> |
| using | MeterPortPtrVariant = to_pointer_variant<MeterPortVariant> |
Public Member Functions | |
| MeterProcessor (QObject *parent=nullptr) | |
| QVariant | port () const |
| void | setPort (QVariant port_var) |
| int | channel () const |
| void | setChannel (int channel) |
| float | currentAmplitude () const |
| Q_SIGNAL void | currentAmplitudeChanged (float value) |
| float | peakAmplitude () const |
| Q_SIGNAL void | peakAmplitudeChanged (float value) |
| Q_INVOKABLE float | toDBFS (float amp) const |
| Q_INVOKABLE float | toFader (float amp) const |
Data Fields | |
| QPointer< QObject > | port_obj_ |
| Port associated with this meter. | |
| std::optional< dsp::RingBufferOwningPortMixin::RingBufferReader > | ring_buffer_reader_ |
| std::unique_ptr< zrythm::dsp::TruePeakDsp > | true_peak_processor_ |
| True peak processor. | |
| std::unique_ptr< zrythm::dsp::TruePeakDsp > | true_peak_max_processor_ |
| float | true_peak_ = 0.f |
| Current true peak. | |
| float | true_peak_max_ = 0.f |
| std::unique_ptr< zrythm::dsp::KMeterDsp > | kmeter_processor_ |
| K RMS processor, if K meter. | |
| std::unique_ptr< zrythm::dsp::PeakDsp > | peak_processor_ |
| MeterAlgorithm | algorithm_ = MeterAlgorithm::METER_ALGORITHM_AUTO |
| Algorithm to use. | |
| float | prev_max_ = 0.f |
| Previous max, used when holding the max value. | |
| float | last_amp_ = 0.f |
| Last meter value (in amplitude), used to show a falloff and avoid sudden dips. | |
| SteadyTimePoint | last_draw_time_ |
| Time the last val was taken at (last draw time). | |
| qint64 | last_midi_trigger_time_ = 0 |
Properties | |
| QML_ELEMENT QVariant | port |
| int | channel |
| float | currentAmplitude |
| float | peakAmplitude |
Detailed Description
A meter processor for a single GUI element.
This class is responsible for processing the meter values for a single GUI element, such as a volume meter. It supports various meter algorithms, including digital peak, true peak, RMS, and K-meter.
The meter processor is associated with a port, which can be either an AudioPort or a MidiPort. The meter values are updated based on the data from the associated port.
The meter processor emits the valuesChanged signal whenever the meter values are updated, allowing the GUI to update the display accordingly.
The documentation for this class was generated from the following file:
- src/gui/backend/meter.h
