HTTP Live Streaming (HLS)
HLS (HTTP Live Streaming) is Apple's protocol for streaming video over standard HTTP. Content is split into small segments (typically 6-10 seconds) listed in a manifest playlist. Players request segments as needed, enabling adaptive bitrate (ABR: switch quality based on bandwidth). Advanced practitioners build CDN-integrated streaming systems, implement DRM (Digital Rights Management), and optimize for low latency. Salary: $95-165k (USA) because video infrastructure is critical revenue generator. Mastery takes 3-4 months; requires media encoding knowledge + networking fundamentals.
HTTP Live Streaming (HLS)とは
HLS (HTTP Live Streaming) is a protocol for streaming video over standard HTTP, developed by Apple. Video is encoded into multiple bitrates and split into small chunks (segments, typically 6-10 seconds). A playlist file (manifest) lists the segments; players request them sequentially. Adaptive bitrate technology adjusts quality based on network conditions. Advanced practitioners design encoding pipelines, implement adaptive bitrate strategies, integrate with CDNs, apply DRM protection, and optimize for low latency. They work on video platforms (YouTube, Netflix, Twitch) and streaming infrastructure (Mux, Wowza).
💰 地域別給与
| 地域 | ジュニア | ミドル | シニア |
|---|---|---|---|
| USA | $75k | $120k | $175k |
| UK | $45k | $73k | $107k |
| EU | $50k | $82k | $120k |
| CANADA | $80k | $130k | $190k |
🎯 HTTP Live Streaming (HLS)を使う職種
❓ よくある質問
What's the difference between HLS and DASH?
What's adaptive bitrate (ABR) and why does it matter?
How low can you go with HLS latency?
How do I protect video from piracy?
How do I scale HLS to millions of viewers?
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