snapshot

libraries/audio-tools/examples/examples-communication/rtsp/communication-player_mp3-rtsp_adcpm/communication-player_mp3-rtsp_adcpm.ino

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+
+// Use the AudioPlayer to decode mp3 and publish as adpcm data
+
+#include "AudioTools.h"
+#include "AudioTools/Disk/AudioSourceSDMMC.h"
+#include "AudioTools/AudioCodecs/CodecMP3Helix.h"
+#include "AudioTools/AudioCodecs/CodecADPCM.h"
+#define USE_RTSP_LOGIN // activate RTSP login support
+#include "AudioTools/Communication/RTSP.h"
+
+int port = 554;
+const char* wifi = "SSID";
+const char* password = "password";
+
+// mp3 data
+AudioSourceSDMMC source("/", ".mp3");
+MP3DecoderHelix mp3; // no decoding, just copy
+// rtsp
+ADPCMEncoder adpcm(AV_CODEC_ID_ADPCM_IMA_WAV, 512); // ima adpcm encoder
+RTSPFormatADPCM<ADPCMEncoder> adpcm_format(adpcm); // RTSP adpcm: provide info from encoder
+RTSPOutput<RTSPPlatformWiFi> rtsp_out(adpcm_format, adpcm);
+FormatConverterStream convert(rtsp_out);
+RTSPServer<RTSPPlatformWiFi> rtsp(rtsp_out.streamer(), port);
+// player
+AudioPlayer player(source, convert, mp3);
+
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
+
+  // no delay between mp3 files
+  source.setTimeoutAutoNext(0);
+
+  // start the player
+  player.begin();
+
+  // Start Output Stream
+  rtsp_out.begin();
+
+  // convert the data format
+  convert.begin(mp3.audioInfo(), rtsp_out.audioInfo());
+
+  // Start Wifi & rtsp server
+  rtsp.begin(wifi, password);
+
+}
+
+void loop() {
+  if (rtsp_out) {
+      player.copy();
+  }
+}