73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
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/**
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* @file communication-rtsp-audiokit.ino
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* @brief RTSP client demo using the new UDP/RTP client and AudioKit output.
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* Connects to an RTSP server, decodes audio via MultiDecoder, and plays
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* out via `AudioBoardStream` (AudioKit ES8388). Tested with RTSP
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* servers. Requires WiFi on ESP32.
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*
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* Steps:
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* - Update WiFi credentials and RTSP server address/path below
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* - Builds a fixed pipeline: MultiDecoder -> ResampleStream -> AudioKit output
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* - Call client.copy() in loop to push received RTP payloads into decoders
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*/
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#include "AudioTools.h"
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#include "AudioTools/AudioCodecs/CodecADPCM.h"
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#include "AudioTools/AudioCodecs/CodecMP3Helix.h" // https://github.com/pschatzmann/arduino-libhelix
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#include "AudioTools/AudioLibs/AudioBoardStream.h"
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#include "AudioTools/Communication/RTSP.h" // brings RTSPClientWiFi alias
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const char* SSID = "ssid";
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const char* PASS = "password";
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IPAddress srv(192, 168, 1, 39); // change to your RTSP server IP
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const uint16_t rtspPort = 8554; // typical RTSP port
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const char* rtspPath =
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"stream"; // change to your RTSP server path (e.g., "audio", "stream1")
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AudioBoardStream i2s(AudioKitEs8388V1);
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RTSPClientWiFi client(i2s);
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MP3DecoderHelix mp3; // Decoder for "audio/mpeg" (MP3) payloads
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ADPCMDecoder adpcm(AV_CODEC_ID_ADPCM_IMA_WAV, 512); // ima adpcm decoder
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void startWiFi() {
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WiFi.begin(SSID, PASS);
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Serial.print("Connecting to WiFi");
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println();
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Serial.print("WiFi connected, IP: ");
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Serial.println(WiFi.localIP());
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WiFi.setSleep(false);
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}
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void setup() {
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
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// Connect WiFi
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startWiFi();
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// Configure and start I2S/AudioKit output
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auto cfg = i2s.defaultConfig(TX_MODE);
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cfg.sd_active = false;
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i2s.begin(cfg);
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// Start RTSP session
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client.addDecoder("audio/mpeg", mp3);
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client.addDecoder("audio/adpcm", adpcm);
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client.setResampleFactor(1.0); // no resampling
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// Servers often require a concrete path; also extend header timeout if needed
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client.setHeaderTimeoutMs(8000);
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if (!client.begin(srv, rtspPort, rtspPath)) {
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Serial.println("Failed to start RTSP client");
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stop();
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}
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Serial.println("RTSP client started");
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}
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void loop() {
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// Push next available RTP payload to decoder chain
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client.copy();
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}
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