dlna renderer example

Author: pschatzmann

examples/examples-communication/dlna/dlna-audio-renderer/dlna-audio-renderer.ino

@@ -0,0 +1,130 @@
+// Example for creating a Media Renderer backed by a AudioPlayer
+
+#include "WiFi.h"
+#include "DLNA.h"
+#include "AudioTools.h"
+#include "AudioTools/AudioLibs/AudioBoardStream.h"
+#include "AudioTools/Communication/AudioHttp.h"
+#include "AudioTools/Disk/AudioSourceURL.h"
+#include "AudioTools/AudioCodecs/CodecHelix.h"
+#include "AudioTools/Concurrency/RTOS.h"
+
+const char* ssid = "ssid";
+const char* password = "password";
+
+// DLNA
+const int port = 9000;
+WiFiServer wifi(port);
+HttpServer<WiFiClient, WiFiServer> server(wifi);
+UDPService<WiFiUDP> udp;
+DLNAMediaRenderer<WiFiClient> media_renderer(server, udp);
+
+// AudioPlayer
+URLStream url;
+AudioSourceDynamicURL source(url);
+AudioBoardStream i2s(AudioKitEs8388V1);  // or e.g. I2SStream i2s;
+MultiDecoder multi_decoder;
+AACDecoderHelix dec_aac;
+MP3DecoderHelix dec_mp3;
+WAVDecoder dec_wav;
+AudioPlayer player(source, i2s, multi_decoder);
+bool is_paused = false;
+Task dlna_task("dlna", 8000, 10, 0);
+
+// Callback when playback reaches EOF
+void onEOF(AudioPlayer& player) {
+  media_renderer.setPlaybackCompleted();
+}
+
+// DLNA event handler
+void handleMediaEvent(MediaEvent ev, DLNAMediaRenderer<WiFiClient>& mr) {
+  switch (ev) {
+    case MediaEvent::SET_URI:
+      Serial.print("Event: SET_URI ");
+      if (mr.getCurrentUri()) {
+        Serial.println(mr.getCurrentUri());
+        source.clear();
+        source.addURL(mr.getCurrentUri());
+      }
+      break;
+    case MediaEvent::PLAY:
+      Serial.println("Event: PLAY");
+      if (is_paused) player.setActive(true);
+      else player.begin();
+      break;
+    case MediaEvent::STOP:
+      Serial.println("Event: STOP");
+      is_paused = false;
+      player.end();
+      break;
+    case MediaEvent::PAUSE:
+      Serial.println("Event: PAUSE");
+      player.setActive(false);
+      is_paused = true;
+      break;
+    case MediaEvent::SET_VOLUME:
+      Serial.print("Event: SET_VOLUME ");
+      Serial.println(mr.getVolume());
+      player.setVolume(static_cast<float>(mr.getVolume()) / 100.0);
+      break;
+    case MediaEvent::SET_MUTE:
+      Serial.print("Event: SET_MUTE ");
+      Serial.println(mr.isMuted() ? 1 : 0);
+      player.setMuted(mr.isMuted());
+      break;
+    default:
+      Serial.println("Event: OTHER");
+  }
+}
+
+// start WiFi
+void setupWifi() {
+  WiFi.begin(ssid, password);
+  WiFi.setSleep(false);
+  Serial.print("Connecting to WiFi ..");
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print('.');
+    delay(1000);
+  }
+  WiFi.setSleep(false);
+  Serial.println("connected!");
+}
+
+void setup() {
+  // setup logger
+  Serial.begin(115200);
+  DlnaLogger.begin(Serial, DlnaLogLevel::Warning);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  // start Wifi
+  setupWifi();
+
+  // setup MultiDecoder
+  multi_decoder.addDecoder(dec_aac, "audio/aac");
+  multi_decoder.addDecoder(dec_mp3, "audio/mpeg");
+  multi_decoder.addDecoder(dec_wav, "audio/wav");
+
+  // configure player: EOF handling
+  player.setOnEOFCallback(onEOF);
+
+  // start I2S
+  i2s.begin();
+
+  // setup media renderer (use event callbacks to handle audio at app level)
+  media_renderer.setBaseURL(WiFi.localIP(), port);
+  media_renderer.setMediaEventHandler(handleMediaEvent);
+
+  // start device
+  if (!media_renderer.begin()) {
+    Serial.println("MediaRenderer failed to start");
+  }
+
+  // DLNA processing in separate task
+  dlna_task.begin([]() {
+    media_renderer.loop();
+  });
+}
+
+void loop() {
+  player.copy();
+}

src/AudioTools/Disk/AudioSourceURL.h

@@ -150,7 +150,7 @@ class AudioSourceDynamicURL : public AudioSourceURL {
     }
   }
 
-  AudioSourceDynamicURL(AbstractURLStream& urlStream, const char* mime,
+  AudioSourceDynamicURL(AbstractURLStream& urlStream, const char* mime = nullptr,
                         int startPos = 0) {
     this->actual_stream = &urlStream;
     this->mime = mime;