{
  "id": 8367797,
  "title": "The Architecture of Live Video Streaming: How HLS, DASH, and CDNs Actually Work",
  "url": "https://urgent.news/2026/09/19/the-architecture-of-live-video-streaming-how-hls-dash-and-cdns",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-19T02:26:58.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/cianosdev/the-architecture-of-live-video-streaming-how-hls-dash-and-cdns-actually-work-df6"
  },
  "original_language": "en",
  "account": null,
  "summary": "The architecture of live video streaming comprises five distinct stages: Ingest, Transcoding, Packaging, CDN, and Client. The ingest stage involves receiving raw video feeds through RTMP (Real-Time Messaging Protocol) or SRT (Secure Reliable Transport). RTMP, originally developed by Adobe, operates over TCP port 1935, while SRT is a modern successor that provides encryption and Forward Error Correction (FEC) for improved reliability over unreliable WAN links. The transcoding stage breaks down the single 4K feed into multiple renditions for various devices and network conditions. This process, known as the ABR Ladder, creates parallel encodes that cater to different resolutions, bitrates, and codecs. Lastly, the CDN (Content Delivery Network) and client stages deliver the video content to the end-users, optimizing for factors like latency, packet loss, and bandwidth availability.",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}