This is an streamer feed from

• an Video4Linux device that support H264, HEVC, JPEG, VP8 or VP9 capture.
• an ALSA device that support PCM S16_BE, S16_LE, S32_BE or S32_LE

The RTSP server supports

• RTP/UDP unicast
• RTP/UDP multicast
• RTP/TCP
• RTP/RTSP/HTTP

The HTTP server supports (available using -S option for capture format that could be muxed in Transport Stream)

• HLS
• MPEG-DASH

To give the snap access to camera and audio capturing, use the following commands

sudo snap connect v4l2rtspserver:camera

sudo snap connect v4l2rtspserver:alsa

Now you can start the daemon with

sudo snap start --enable v4l2rtspserver

Thre snap also ships a command to be used from CLI in case you do not want to use the server, this command is called v4l2rtspserver.manual

For more information see the upstream README at https://github.com/mpromonet/v4l2rtspserver