catching up (trying to) wiht CSpot

components/spotify/cspot/bell/include/sinks/esp/SPDIFAudioSink.h

@@ -0,0 +1,27 @@
+#ifndef SPDIFAUDIOSINK_H
+#define SPDIFAUDIOSINK_H
+
+#include <vector>
+#include <iostream>
+#include "BufferedAudioSink.h"
+#include <stdio.h>
+#include <string.h>
+#include <sys/unistd.h>
+#include <sys/stat.h>
+#include "esp_err.h"
+#include "esp_log.h"
+
+class SPDIFAudioSink : public BufferedAudioSink
+{
+private:
+  	uint8_t spdifPin;
+public:
+    explicit SPDIFAudioSink(uint8_t spdifPin);
+    ~SPDIFAudioSink() override;
+    void feedPCMFrames(const uint8_t *buffer, size_t bytes) override;
+	void initialize(uint16_t sampleRate);
+	bool setRate(uint16_t sampleRate) override;
+private:
+};
+
+#endif