ipc-recorder:

• Connect to RTSP server (like a IPCamera)
• fetch and decode video stream
• split into fragment every 10 seconds
• save to files on disk
• save records with start time, end time on database(SQLite on demo), so they can be playback in correct sequence

ipc-player:

• host a HTTP server
• static file server for browser to load web page or video file
• query database for video fragments and generate m3u8 file for playback
• when playing realtime:
  • create a realtime playback session
  • query last 3 fragments as start position
  • wait for new fragments when browser continue load m3u8 file

References:

• https://github.com/bluenviron/gortsplib
• https://github.com/grafov/m3u8
• https://github.com/video-dev/hls.js
• https://developer.apple.com/documentation/http-live-streaming/live-playlist-sliding-window-construction