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HTMLVideoElement from Scratch, with Fast Seeking

TalkinRussianat HolyJS 2024 Autumn · 2024-11-07..11-15· [web-platform, web-performance]
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slides:none on file

Covers implementing an HTMLVideoElement from scratch with support for fast seeking (frame-by-frame rendering). Explains why fast seek is essential for systems that render frame-by-frame, reviews older solutions, and describes how to implement it correctly with modern approaches.

AI-written summary · about

  1. 0:00Introduction
  2. 3:12Canvas playback
  3. 16:07Video element in scene
  4. 24:33Canvas recording
  5. 35:26Record button
  6. 40:17Seeking fixes
  7. 57:48Slow HTML video seeking
  8. 1:05:50Custom HTML video element
  9. 1:22:37Video with Web Codecs
  10. 1:30:07Rendering memory optimization
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