Very preliminary tests to allow reacting to incoming MIDI notes

Source/PluginProcessor.cpp

@@ -777,6 +777,29 @@ void PaulstretchpluginAudioProcessor::processBlock (AudioSampleBuffer& buffer, M
 	
 	m_stretch_source->setFreezing(getParameter(cpi_freeze));
 	m_stretch_source->setPaused(getParameter(cpi_pause_enabled));
+	MidiBuffer::Iterator midi_it(midiMessages);
+	MidiMessage midi_msg;
+	int midi_msg_pos;
+	while (true)
+	{
+		if (midi_it.getNextEvent(midi_msg, midi_msg_pos) == false)
+			break;
+		if (midi_msg.isNoteOn())
+		{
+			m_midinote_to_use = midi_msg.getNoteNumber();
+			break;
+		}
+		if (midi_msg.isNoteOff())
+		{
+			m_midinote_to_use = -1;
+		}
+	}
+	if (m_midinote_to_use >= 0)
+	{
+		int note_offset = m_midinote_to_use - 60;
+		m_ppar.pitch_shift.cents += 100.0*note_offset;
+	}
+	
 	m_stretch_source->setProcessParameters(&m_ppar);
 	AudioSourceChannelInfo aif(buffer);
 	if (isNonRealtime() || m_use_backgroundbuffering == false)

Source/PluginProcessor.h

@@ -273,6 +273,7 @@ private:
 	AudioFilePreviewComponent* m_previewcomponent = nullptr;
 	void saveCaptureBuffer();
 	SharedResourcePointer<MyThreadPool> m_threadpool;
+	int m_midinote_to_use = -1;
 	//==============================================================================
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PaulstretchpluginAudioProcessor)
 };

paulstretchplugin.jucer

@@ -11,7 +11,8 @@
               pluginWantsMidiIn="0" pluginProducesMidiOut="0" pluginIsMidiEffectPlugin="0"
               pluginEditorRequiresKeys="0" pluginAUExportPrefix="paulxstretchAU"
               aaxIdentifier="com.yourcompany.paulstretchplugin" pluginAAXCategory="2"
-              jucerVersion="5.4.1" headerPath="

" pluginFormats="buildVST,buildVST3,buildAU,buildStandalone">
+              jucerVersion="5.4.1" headerPath="

" pluginFormats="buildVST,buildVST3,buildAU,buildStandalone"
+              pluginCharacteristicsValue="pluginWantsMidiIn">
   <MAINGROUP id="nozXHl" name="PaulXStretch">
     <GROUP id="{03DA6B32-F666-FF60-F168-4385D0847058}" name="Source">
       <FILE id="RanaVV" name="RenderSettingsComponent.cpp" compile="1" resource="0"