rename esp32 project folder

FW/leo_muziekdoos_esp32/src/audio.cpp

@@ -0,0 +1,94 @@
+#include "audio.h"
+
+AudioGeneratorMP3 *mp3;
+AudioFileSourceID3 *id3;
+AudioFileSourceLittleFS *file;
+AudioOutputI2S *out;
+
+uint8_t i = 0;
+uint8_t n = 0;
+
+const char *waveFile[] =
+    {"/ringoffire.mp3",
+     "/Let_it_be.mp3",
+     "/Billy-Jean.mp3"};
+
+// Called when a metadata event occurs (i.e. an ID3 tag, an ICY block, etc.
+void MDCallback(void *cbData, const char *type, bool isUnicode, const char *string)
+{
+  (void)cbData;
+  Serial.printf("ID3 callback for: %s = '", type);
+
+  if (isUnicode)
+  {
+    string += 2;
+  }
+
+  while (*string)
+  {
+    char a = *(string++);
+    if (isUnicode)
+    {
+      string++;
+    }
+    Serial.printf("%c", a);
+  }
+  Serial.printf("'\n");
+  Serial.flush();
+}
+
+// Called when there's a warning or error (like a buffer underflow or decode hiccup)
+void StatusCallback(void *cbData, int code, const char *string)
+{
+  const char *ptr = reinterpret_cast<const char *>(cbData);
+  // Note that the string may be in PROGMEM, so copy it to RAM for printf
+  char s1[64];
+  strncpy_P(s1, string, sizeof(s1));
+  s1[sizeof(s1) - 1] = 0;
+  Serial.printf("STATUS(%s) '%d' = '%s'\n", ptr, code, s1);
+  Serial.flush();
+}
+
+void playSong(uint8_t index)
+{
+  if (index > AUDIONSONGS)
+    return;
+  Serial.printf("now playing %s\n", waveFile[index]);
+  file = new AudioFileSourceLittleFS(waveFile[index]);
+  id3 = new AudioFileSourceID3(file);
+  id3->RegisterMetadataCB(MDCallback, (void *)"ID3TAG");
+  mp3->begin(id3, out);
+}
+
+void initAudio()
+{
+  Serial.println("init Audio");
+  audioLogger = &Serial;
+
+  out = new AudioOutputI2S();
+  out->SetPinout(I2S_BCLK, I2S_WCLK, I2S_DATA); //bclk, wclk, data
+  out->SetGain(AUDIOGAIN);
+
+  mp3 = new AudioGeneratorMP3();
+  mp3->RegisterStatusCB(StatusCallback, (void *)"mp3");
+  Serial.println("init Audio Done");
+  playSong(i);
+}
+
+void handleAudio()
+{
+  if (mp3->isRunning())
+  {
+    if (!mp3->loop())
+    {
+      //mp3->stop();
+      if(n++ >= AUDIOREPEATS)
+      {
+        i++;
+        n= 0;
+      }
+      playSong(i);
+      ;
+    }
+  }
+}