Enhanced h264ify browser extension

[tom95521]

If you have problems with smooth playback of 60 fps HD videos in YT you might want to try this browser extension. It enables h.264 video hardware acceleration which most modern graphics cards support. You can search for h264ify in your browser extensions.

Here is the developer website.

https://github.com/erkserkserks/h264ify

Tom

 

[tom95521]

Right clicking on video and selecting Stats for Nerds you can see what codec the player is currently using. The YT player seems to favor VP9 playback only on 1440/2160(4K) videos but not on 1080 FHD videos. The VP9 codec is more efficient that H.264 and is almost equal H.265. I could transcode (upscale) my 1080 video media to 4K and then upload but that takes a long time.

YT recommended upload encoding settings
https://support.google.com/youtube/answer/1722171?hl=en

Unfortunately when YT transcodes VP9/Opus codec in webm container it lowers bitrate so we don't see the full advantage of VP9 compared to H.264. Also you can not upload VP9 in webm without YT creating a new version at lower bitrate.

If you want to force a certain codec like VP9 on 1080 videos this Chrome/FF extension has been working for me.

https://github.com/alextrv/enhanced-h264ify

You can also force AV1. Many of the popular BBC David Attenborough videos can playback in AV1 format.

https://www.youtube.com/account_playback

https://www.youtube.com/watch?v=64R2MYUt394

Tom

*PTE 10.0.13 can play AV1 in the mini player but not full screen preview or publish as EXE. You can also publish a video with AV1 source.