Support resampled playrate changes for non stretched playback

Source/PS_Source/StretchSource.cpp

@@ -269,6 +269,23 @@ bool StretchAudioSource::isPreviewingDry() const
 	return m_preview_dry;
 }
 
+void StretchAudioSource::setDryPlayrate(double rate)
+{
+	if (rate == m_dryplayrate)
+		return;
+	if (m_cs.tryEnter())
+	{
+		m_dryplayrate = rate;
+		++m_param_change_count;
+		m_cs.exit();
+	}
+}
+
+double StretchAudioSource::getDryPlayrate() const
+{
+	return m_dryplayrate;
+}
+
 void StretchAudioSource::getNextAudioBlock(const AudioSourceChannelInfo & bufferToFill)
 {
 	ScopedLock locker(m_cs);
@@ -568,7 +585,7 @@ void StretchAudioSource::playDrySound(const AudioSourceChannelInfo & bufferToFil
 	double maingain = Decibels::decibelsToGain(m_main_volume);
 	m_inputfile->setXFadeLenSeconds(m_loopxfadelen);
 	double* rsinbuf = nullptr;
-	m_resampler->SetRates(m_inputfile->info.samplerate, m_outsr);
+	m_resampler->SetRates(m_inputfile->info.samplerate*m_dryplayrate, m_outsr);
 	int wanted = m_resampler->ResamplePrepare(bufferToFill.numSamples, m_num_outchans, &rsinbuf);
 	m_inputfile->readNextBlock(m_drypreviewbuf, wanted, m_num_outchans);
 	for (int i = 0; i < wanted; ++i)

Source/PS_Source/StretchSource.h

@@ -104,6 +104,8 @@ public:
 	double getLoopXFadeLengtj() const { return m_loopxfadelen; }
 	void setPreviewDry(bool b);
 	bool isPreviewingDry() const;
+	void setDryPlayrate(double rate);
+	double getDryPlayrate() const;
 	int m_param_change_count = 0;
 	double getLastSeekPos() const { return m_seekpos; }
 	CriticalSection* getMutex() { return &m_cs; }
@@ -163,6 +165,7 @@ private:
 	} m_xfadetask;
 	int m_pause_fade_counter = 0;
 	bool m_preview_dry = false;
+	double m_dryplayrate = 1.0;
 	AudioBuffer<float> m_drypreviewbuf;
 	void playDrySound(const AudioSourceChannelInfo & bufferToFill);
 };

Source/PluginEditor.cpp

@@ -119,7 +119,7 @@ PaulstretchpluginAudioProcessorEditor::PaulstretchpluginAudioProcessorEditor(Pau
 			m_parcomps.push_back(nullptr);
 		}
 	}
-	
+	//m_parcomps[cpi_dryplayrate]->getSlider()->setSkewFactorFromMidPoint(1.0);
 	//addAndMakeVisible(&m_specvis);
 	m_wave_container->addAndMakeVisible(&m_zs);
 	m_zs.RangeChanged = [this](Range<double> r)
@@ -375,6 +375,9 @@ void PaulstretchpluginAudioProcessorEditor::resized()
 	xoffs += div;
 	m_parcomps[cpi_soundend]->setBounds(xoffs, yoffs, div - 1, 24);
 	yoffs += 25;
+	xoffs = 1;
+	m_parcomps[cpi_dryplayrate]->setBounds(xoffs, yoffs, getWidth() - 2, 24);
+	yoffs += 25;
 	int remain_h = getHeight() - 1 - yoffs;
 	m_spec_order_ed.setBounds(1, yoffs, getWidth() - 2, remain_h / 9 * 1);
 	m_wavefilter_tab.setBounds(1, m_spec_order_ed.getBottom() + 1, getWidth() - 2, remain_h / 9 * 8);

Source/PluginEditor.h

@@ -90,6 +90,7 @@ public:
 	void updateComponent();
 	void setHighLighted(bool b);
 	int m_group_id = -1;
+	Slider* getSlider() { return m_slider.get(); }
 private:
 	Label m_label;
 	AudioProcessorParameter* m_par = nullptr;

Source/PluginProcessor.cpp

@@ -169,7 +169,7 @@ PaulstretchpluginAudioProcessor::PaulstretchpluginAudioProcessor()
 
 	addParameter(new AudioParameterBool("loop_enabled0", "Loop", true)); // 60
 	addParameter(new AudioParameterBool("rewind0", "Rewind", false)); // 61
-
+	addParameter(new AudioParameterFloat("dryplayrate0", "Dry playrate", 0.1, 8.0, 1.0)); // 62
 	auto& pars = getParameters();
 	for (const auto& p : pars)
 		m_reset_pars.push_back(p->getValue());
@@ -697,6 +697,7 @@ void PaulstretchpluginAudioProcessor::processBlock (AudioSampleBuffer& buffer, M
 	m_stretch_source->setMainVolume(*getFloatParameter(cpi_main_volume));
 	m_stretch_source->setRate(*getFloatParameter(cpi_stretchamount));
 	m_stretch_source->setPreviewDry(*getBoolParameter(cpi_bypass_stretch));
+	m_stretch_source->setDryPlayrate(*getFloatParameter(cpi_dryplayrate));
 	setFFTSize(*getFloatParameter(cpi_fftsize));
 	
 	updateStretchParametersFromPluginParameters(m_ppar);

Source/PluginProcessor.h

@@ -86,6 +86,7 @@ const int cpi_octaves_ratio6 = 58;
 const int cpi_octaves_ratio7 = 59;
 const int cpi_looping_enabled = 60;
 const int cpi_rewind = 61;
+const int cpi_dryplayrate = 62;
 
 class MyPropertiesFile
 {