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libraries/audio-tools/examples/examples-audiokit/streams-file_loop-audiokit/streams-file_loop-audiokit.ino

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+/**
+ * @file streams-file_loop-audiokit.ino
+ * @author Phil Schatzmann
+ * @brief Just a small demo, how to use looping (=repeating) files with the SD library
+ * @version 0.1
+ * @date 2022-10-09
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+#include <SPI.h>
+#include <SD.h>
+#include "AudioTools.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
+#include "AudioTools/Disk/FileLoop.h"
+#include "AudioTools/AudioCodecs/CodecMP3Helix.h"
+
+
+const int chipSelect=PIN_AUDIO_KIT_SD_CARD_CS;
+AudioBoardStream i2s(AudioKitEs8388V1); // final output of decoded stream
+EncodedAudioStream decoder(&i2s, new MP3DecoderHelix()); // Decoding stream
+FileLoop loopingFile;
+StreamCopy copier(decoder, loopingFile); 
+
+void setup(){
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);  
+
+  // setup audiokit before SD!
+  auto config = i2s.defaultConfig(TX_MODE);
+  config.sd_active = true;
+  i2s.begin(config);
+
+  // setup file
+  SD.begin(chipSelect);
+  loopingFile.setFile(SD.open("/ZZ Top/Unknown Album/Lowrider.mp3"));
+  //loopingFile.setLoopCount(-1); // define loop count
+  //audioFile.setStartPos(44); // restart from pos 44
+  //if ((audioFile.size()-44) % 1024!=0) audioFile.setSize((((audioFile.size()-44)/1024)+1)*1024+44);
+  loopingFile.begin();
+
+  // setup I2S based on sampling rate provided by decoder
+  decoder.begin();
+}
+
+void loop(){
+  copier.copy();
+}