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Video

Video containers

Stores

  • Video
  • Audio
  • Subtitles
  • Metadata

MP4

  • MOV is also just an mp4?
  • Released: 2001

WebM

  • Released: 2010

Video codecs

  • H.264, HEVC/H.265
    • works in all browsers
  • VP8/VP9
    • supported by all the browsers that support WebM
  • AV1 codec
    • Compresses really well

Browser needs to support not the video codec and the video container Audio Codec

Replacing GIF

Why GIFs suck

  • Large
    • Videos are a lot smaller
  • Colors
    • 240 color limit
  • No alpha transparency

Alternative to GIF

https://css-tricks.com/gifs-without-the-gif-the-most-performant-image-and-video-options-right-now

  • video
    • Many src for diff encodings
    • Problem
      • Doesn't let your screen go to sleep
  • Image
    • Webp
    • Avif

Last update: 2022-11-04