snapshot

libraries/audio-tools/examples/examples-communication/snapcast/snapclient-i2s/snapclient-i2s.ino

@@ -0,0 +1,64 @@
+/**
+ * @file send-receive.ino
+ * @author Phil Schatzmann
+ * @brief Receive audio sent by snapcast on an ESP32 and output to i2s.
+ * I was testing with ffmpeg -i http://stream.srg-ssr.ch/m/rsj/mp3_128 -f s16le -ar 48000  /tmp/snapfifo
+ * More examples can be found at https://github.com/pschatzmann/arduino-snapclient/tree/main/examples
+ * @version 0.1
+ * @date 2023-09-25
+ *
+ * @copyright Copyright (c) 2022
+ */
+
+/**
+ * @brief SnapClient with Opus decoder: I2S OUtput 
+ * @author Phil Schatzmann
+ * @copyright GPLv3
+ */
+
+#include "AudioTools.h"
+#include "SnapClient.h"
+#include "AudioTools/AudioCodecs/CodecOpus.h"
+
+#define ARDUINO_LOOP_STACK_SIZE (10 * 1024)
+
+OpusAudioDecoder opus;
+I2SStream out;
+WiFiClient wifi;
+SnapTimeSyncDynamic synch(172, 10); // optional configuratioin
+SnapClient client(wifi, out, opus);
+
+void setup() {
+  Serial.begin(115200);
+
+  // login to wifi -> Define values in SnapConfig.h or replace them here
+  WiFi.begin(CONFIG_WIFI_SSID, CONFIG_WIFI_PASSWORD);
+  Serial.print("Connecting to WiFi ..");
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print('.');
+    delay(1000);
+  }
+
+  // print ip address
+  Serial.println();
+  Serial.println(WiFi.localIP());
+
+  // setup I2S to define custom pins
+  auto cfg = out.defaultConfig();
+  cfg.pin_bck = 14;
+  cfg.pin_ws = 15;
+  cfg.pin_data = 22;
+  //cfg.buffer_size = 512;
+  //cfg.buffer_count = 6;
+  out.begin(cfg);
+
+  // Define CONFIG_SNAPCAST_SERVER_HOST in SnapConfig.h or here
+  // client.setServerIP(IPAddress(192,168,1,38));
+
+  // start snap client
+  client.begin(synch);
+}
+
+void loop() {
+  client.doLoop();
+}