audio checkpoint

src/synth/AudioStream.h

@@ -0,0 +1,23 @@
+
+#pragma once
+
+#include <QIODevice>
+#include "Synth.h"
+
+class AudioStream : public QIODevice
+{
+    Q_OBJECT
+
+public:
+    explicit AudioStream(Synth *synth, QObject *parent = nullptr);
+
+    void start();
+    void stop();
+
+protected:
+    qint64 readData(char *data, qint64 maxlen) override;
+    qint64 writeData(const char *, qint64) override { return 0; }
+
+private:
+    Synth *synth_;
+};