Library to asynchronously run an RTSP-Server on an ESP32, in order to stream raw audio.
I modified the library Micro-RTSP for video streaming by Kevin Hester: https://github.com/geeksville/Micro-RTSP
Copyright 2018 S. Kevin Hester-Chow, kevinh@geeksville.com (MIT License)
// set up an Audio source
IAudioSource audioSource = AudioDevice();
// create the Audio Streamer using the audio source
AudioStreamer streamer = AudioStreamer(&audioSource);
// create the RTSPServer using the streamer
RTSPServer rtsp = RTSPServer(&streamer);
// start the server asynchronously
rtsp.runAsync();The Audio Source must implement the IAudioInterface, mainly the function readBytes() which provides the audio data to the streamer.
Open VLC, ->File -> Open Network and enter rtsp://ip-address
For the time beeing only a sampling rate of 16000 with a mono signal is supported. If you try other settings you will need to adjust the fragment_size and timer_period. But I noticed that the UDP of the ESP32 is just not fast enough to handle more and the only way around this limitation is to use CODECs.
Please note that I have not released this project yet, so it is purely experimental!