Works for Gentoo, but should be rather easy to extend to other Distros (i.e. add other pathes to search for that file) and maybe even other versions of opera (i.e. add other md5sums of old libffmpeg.so files).

This script backs up the old libffmpeg.so file, but there is no automatic way to revert it, so if something goes wrong, you have to clean up yourself. The script tries to do things only if it's sure, it's save to do so.

https://gist.github.com/bothie/29d0e67ff164d4686cec30927d09a72f

Thanks

I'v tried 0.33.(1,2,3,4) and 0.34.0 libffmpg that I'v got from here: https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/
(the screen was for reference only). Youtube crashes whenever I copy libffmpeg to Opera directory. If the ffmpeg is deleted videos are not working but the site does not crush.

Looks like there is a problem with his lib after version 0.32, download and install 0.31.5 and stay with it, you don't need to update it unless something stop working or there are some security related issues.

Expert's advice on the above
From time to time, someone will post a "solution" to the libffmpeg problem. This will either be "install this ubuntu's chromium ffmpeg codecs package by hand to get the... precious html5 support" or "get that tar,gz from herecura's repo, untar it and move libffmpeg to the right place to make it work".
Both are wrong because they refer to packages built for a different distro (ubuntu in the first case, arch in the second), and definitely built with a different set of libraries and compilers. Do not do that unless you want to break your system or browser.

The only difference is that you get the libffmpeg built for nodejs, which is also completely irrelevant to the ones mentioned above.

Also, the crash of the built in preferences page has nothing to do with libffmpeg.

In my case it doesn't work to play videos on facebook. Thank you to the user of the @appdevsw, he led me to the right track. I tested my solution at Manjaro. Probably it will also work on Arch.

Install the missing codecs: opera-ffmpeg-codecs.
https://www.archlinux.org/packages/community/x86_64/opera-ffmpeg-codecs/
After installation, restart the opera.

I don't have Chromium installed and Opera is seems to be playing html5 just fine!

Would be nice to have a script that detects the version of Chromium that Opera is using and fetches the latest compatible libfmpeg.so and installs it (in Opera's lib_extra folder so it doesn't interfere with any other programs and the version they need etc.).

For thouse outside the Ubuntu gang like Debian, Slackware, etc. Is possible to do this with cron once a month or whatever download the script would check the version, user system (32 or 64 bit), download, extract and install. No need for user interaction.

From my experience on Debian, you don't have to update that file to often.

Too bad I don't know how to code, but it shouldn't be a hard script to create.

@mklinuxuser said in Opera 54.0.2952.41: Streaming videos don't work anymore:

@burnout426 said in Opera 54.0.2952.41: Streaming videos don't work anymore:

Try 54.0.2952.46. There's a video fix in the changelog.

After getting it all working I updated to that version - videos on Facebook broken again. Now there is an other release
(54.0.2952.51) available so will try that. If it is still broken I will try copying the same ffmpeg file again! What a palaver!

Yes, the libffmpeg get replaced in every update, here is what you can do.

• Download the last libffmpeg from here and extract some place.
• Do sudo mkdir -p /usr/lib/chromium-browser
• Copy the libffmpeg.so to that directory with sudo cp libffmpeg.so /usr/lib/chromium-browser
• Just to make sure run sudo chmod 555 /usr/lib/chromium-browser/libffmpeg.so followed by sudo ldconfig

That will keep you safe for a while unless there is some huge change in the libffmpeg.

Opera look in to this places for libffmpeg by default:

cat /usr/lib/x86_64-linux-gnu/opera/resources/ffmpeg_preload_config.json
[
  "lib_extra/libffmpeg.so",
  "/usr/lib/chromium-browser/libffmpeg.so",
  "/usr/lib/chromium-browser/libs/libffmpeg.so",
]

Why use nwjs-ffmpeg instead of chromium-codecs package?
Because nwjs-ffmpeg comes complete (11 MB) and works with linux distribution, chromium-codecs is about 3 MB and even if you installed over Debian (my case) it doesn't work for some reason.

Well,
Opera was updated to 54.0.2952.54, after the procedure above, there was no need to copy or download anything.
Everything is working as expected.

I could create a FAQ topic on the Opera for Linux forum and include the information but my experience says that many people will not read it.