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by Scaevolus
1252 days ago
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Instagram uses DASH (chunked, adaptive streaming) and starts playing with a low res, and aggressively compresses video. Tiktok's api just returns a bunch of different CDN urls for different MP4s of the video (HQ often being 576P CRF24), and the client loads whatever bitrate it has detected it can load without hiccuping. |
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