Getting YouTube to serve VP8/VP9 MSE-compatible videos
General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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manpreet![Tuteehub forum best answer]()
Best Answer
2 years ago
We're developing an embeddable browser and at the moment we're in the process of adding MSE support (specifically targeting YouTube embedded videos, in order to be able to play higher quality videos).
We currently only support WebM (VP8/VP9 + vorbis) encoded videos. One of the issues we are facing right now is that YouTube refuses to serve us WebM videos and just falls back to non-MSE playback in most cases. This is an example of a video which is being served to us using MSE in WebM format. We are returning
trueto allvideo/webmandaudio/webm(except opus)isTypeSupportedcalls.How can we get YouTube to serve us WebM videos whenever possible? The way we're testing at the moment is either by directly opening a video through the YouTube website or by using an page which contains a single
iframefor the video:This is the user agent we are currently identifying as: