ftp example

examples/examples-communication/ftp/ftp-client/ftp-client.ino

@@ -0,0 +1,53 @@
+/**
+ * @file ftp-client.ino
+ * @author Phil Schatzmann
+ * @brief Receiving audio via FTP and writing to I2S of the AudioKit.
+ * Replace the userids, passwords and ip adresses with your own!
+ * @version 0.1
+ * @date 2023-11-09
+ *
+ * @copyright Copyright (c) 2023
+ */
+
+#include "WiFi.h"
+#include "ArduinoFTPClient.h" // install https://github.com/pschatzmann/TinyFTPClient
+#include "AudioTools.h"
+#include "AudioCodecs/CodecMP3Helix.h"
+#include "AudioLibs/AudioKit.h"
+
+WiFiClient cmd;
+WiFiClient data;
+FTPClient client(cmd, data);
+FTPFile file;
+AudioKitStream kit; // or replace with e.g. I2SStream
+MP3DecoderHelix mp3;
+EncodedAudioStream decoder(&kit, &mp3); 
+StreamCopy copier(decoder, file);
+
+void setup() {
+  Serial.begin(115200);
+
+  // connect to WIFI
+  WiFi.begin("network name", "password");
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+
+  // optional logging
+  FTPLogger::setOutput(Serial);
+  // FTPLogger::setLogLevel(LOG_DEBUG);
+
+  // open connection
+  client.begin(IPAddress(192, 168, 1, 10), "user", "password");
+
+  // copy data from file
+  file = client.open("/data/music/Neil Young/After the Gold Rush/08 Birds.mp3");
+
+  // open output device
+  kit.begin();
+  decoder.begin();
+
+}
+
+void loop() { copier.copy(); }

src/AudioTools/AudioStreams.h

@@ -1374,7 +1374,7 @@ class Throttle : public AudioStream {
     uint64_t durationUsEff = micros() - start_time;
     uint64_t durationUsToBe = getDelayUs(sum_frames);
     int64_t waitUs = durationUsToBe - durationUsEff + cfg.correction_us;
-    LOGI("wait us: %ld", waitUs);
+    LOGI("wait us: %ld", (long) waitUs);
     if (waitUs > 0) {
       int64_t waitMs = waitUs / 1000;
       if (waitMs > 0) delay(waitMs);