mp4 does not play in the Opera browser on Arch Linux

No mp4 files are played on any site. What could be the reason?
I read that earlier opera did not support this format at all, but since version 52, it was supposedly corrected.

P.S. Firefox perfectly plays any video on the same machine.

 OS: Arch Linux x86_64
 GPU: Intel HD Graphics 620
 Opera: 55.0.2994.44
Author: cryptostimor, 2018-08-27
Source

1 answers

Installing the package opera-ffmpeg-codecs should solve the problem

sudo pacman -Sy opera-ffmpeg-codecs
 1
Author: Ivan Gantsev, 2020-04-18 20:32:41