Can't read mp4 video on TWebBrowser

[Retwas]

With Delphi 11 and Ubuntu 21.10.

When I try to read a ogg video on a simple html web page with <video> it’s ok.

When I use mp4 video, the size is incorrect and the video look in black and white.

Exemple :

• Create a new project
• Add a TWebBrowser
• Navigate to : https://www.w3schools.com/html/tryit.asp?filename=tryhtml5_video_all
• Click on “Run”
• Result with mp4 : can’t read video
• Result with only ogg : it’s ok

Result below :

• At left in Mozilla Firefox
• At right in TWebBrowser (mp4)

Thanks

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