minor refactor

Author: cgreening

player/src/audio_output/AudioOutput.cpp player/src/AudioOutput/AudioOutput.cppplayer/src/audio_output/AudioOutput.cpp renamed to player/src/AudioOutput/AudioOutput.cpp

@@ -0,0 +1,17 @@
+#pragma once
+#include <freertos/FreeRTOS.h>
+#include <driver/i2s.h>
+
+#include "I2SBase.h"
+
+/**
+ * Base Class for both the ADC and I2S sampler
+ **/
+class PDMOutput : public I2SBase
+{
+private:
+    i2s_pin_config_t m_i2s_pins;
+public:
+    PDMOutput(i2s_port_t i2s_port, i2s_pin_config_t &i2s_pins);
+    void start(uint32_t sample_rate);
+};