applied platformio structure

lib/spotify/cspot/bell/main/audio-codec/include/MP3Decoder.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <stdint.h>  // for uint8_t, uint32_t, int16_t
+
+#include "BaseCodec.h"  // for BaseCodec
+#include "mp3dec.h"     // for HMP3Decoder, MP3FrameInfo
+
+namespace bell {
+class AudioContainer;
+
+class MP3Decoder : public BaseCodec {
+ private:
+  HMP3Decoder mp3;
+  int16_t* pcmData;
+  MP3FrameInfo frame = {};
+
+ public:
+  MP3Decoder();
+  ~MP3Decoder();
+  bool setup(uint32_t sampleRate, uint8_t channelCount,
+             uint8_t bitDepth) override;
+
+  bool setup(AudioContainer* container) override;
+  uint8_t* decode(uint8_t* inData, uint32_t& inLen, uint32_t& outLen) override;
+};
+}  // namespace bell