If capture buffer used, refresh waveform when GUI has been closed and reopened.

Source/PS_Source/Input/AInputS.h

@@ -65,6 +65,12 @@ public:
 		seek(m_activerange.getStart());
 		updateXFadeCache();
 	}
+    virtual AudioBuffer<float>* getAudioBuffer() override
+    {
+        if (m_using_memory_buffer)
+            return &m_readbuf;
+        return nullptr;
+    }
 	bool openAudioFile(File file) override
     {
 		m_silenceoutputted = 0;

Source/PS_Source/Input/InputS.h

@@ -79,7 +79,7 @@ public:
 	{
 		return m_currentsample >= info.nsamples*m_activerange.getEnd();
 	}
-	
+    virtual AudioBuffer<float>* getAudioBuffer()=0;
 protected:
 	volatile int64_t m_currentsample = 0;
 	int m_silenceoutputted = 0;