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Source: fasterthanlime
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  • description: Follow me on Mastodon: https://hachyderm.io/@fasterthanlime Support me on Patreon or GitHub: https://fasterthanli.me/donate What's in an MP4 file? How is video encoded? Who would build their own video streaming platform? And why?? Oh gosh why. 00:00 I'd like to tell you a story 01:42 The quest for 4K60 05:13 Almost, but not quite 60FPS 07:36 Making my own player 09:34 Video streaming crash course 13:32 The structure of an MP4 file 16:55 MPEG-DASH, codecs, and bitrates 19:24 Measuring image quality (PSNR, VMAF) 21:23 Adaptive Bitrate Streaming (fragments/segments) 22:52 Vibe check 23:58 Demo, init and index segments 27:04 Frame types, optimizing the pipeline 31:25 Frame re-ordering, DTS vs PTS, GOP 37:11 Fragmenting is hard, let's go shopping 38:53 Play me off, Johnny Why is TV 29.97 FPS by Stand-Up Maths: https://youtu.be/3GJUM6pCpew
  • updated_at: 2025-04-22T19:56:19Z
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  • uploaded_at: 2022-09-15T11:36:31Z
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  • title: This is a video about video
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