HLS encryption: how AES-128 video encryption works
What HLS encryption protects, why it's so often bypassed through the key every player receives, what it can't do, and what to ask your video platform.
#hls
8 articles tagged #hls
Articles
Cache-Control headers explained: no-cache, no-store, max-age
What each Cache-Control directive does, no-cache vs no-store, ETags and revalidation, and ready-to-use headers for static files, HTML, APIs and HLS video.
Video transcoding pipelines: from upload to HLS
How to turn an uploaded lecture into encrypted HLS: probing, encoding a ladder with FFmpeg, queue-driven workers, CPU vs GPU vs spot capacity, retries and what one lecture really costs.
Adaptive bitrate streaming and bitrate ladders explained
How players choose between renditions, what hls.js and dash.js do by default, and how to design a bitrate ladder that keeps lectures playing on patchy mobile networks.
HLS vs DASH: how the formats compare, and where CMAF fits
HLS and MPEG-DASH compared: playlists vs manifests, iPhone and Android support, encryption and DRM, low latency, and how CMAF lets one set of segments serve both formats.
WebRTC vs HLS for live classes: latency, scale and cost
Sub-second WebRTC or CDN-scale HLS? Latency budgets for live classes, SFUs, Low-Latency HLS, RTMP vs SRT ingest, the cost of a 5,000-student class and a hybrid design.
How to prevent video downloads from your website
Most course video downloads use ordinary gaps: plain file links, download tools, keys any session can fetch and shared logins. What fails, the warning signs and what to ask.
Signed URLs and hotlink protection for video, explained
How signed links and hotlink protection get bypassed: links shared before expiry, valid sessions, leaked secrets, public storage and faked Referer headers.
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