nwjs-ffmpeg-prebuilt VS ffmpeg.wasm

How to Install libffmpeg (for proprietary h.264 and aac support) for Opera for Linux_x64 Goto the URL opera://about and look at the "Browser identification" (User-Agent) string to see what major version of Chromium Opera is using (79, 80, 81, 82 etc.). Also, take note of the "install" path. You'll need that later. Goto https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/ and download the latest -linux-x64.zip that's built with the same major version of Chromium that your Opera is. For example, if your Opera is built with Chromium 79, goto https://github.com/iteufel/nwjs-ffmpeg-prebuilt/releases/tag/0.43.6 and download 0.43.6-linux-x64.zip. Or, goto https://packages.ubuntu.com/search?keywords=chromium-codecs-ffmpeg-extra and click on the link to the distro that has "chromium-codecs-ffmpeg-extra" for the version of Chromium you need. Then, on the page for the distro, click the "amd64" link to goto the download page. On the download page, you can download the deb file and then extract it to get libffmpeg.so out of it. For example, if you need libffmpeg.so for Chromium 81, goto https://packages.ubuntu.com/focal-updates/amd64/chromium-codecs-ffmpeg-extra/download and download the the deb file. (in this case though, ignore that and use the libffmpeg.so in http://security.ubuntu.com/ubuntu/pool/universe/c/chromium-browser/chromium-codecs-ffmpeg-extra\_83.0.4103.61-0ubuntu0.18.04.1\_amd64.deb that's from https://packages.ubuntu.com/bionic/chromium-ffmpeg-extra even though it says it's for Chromium 83) If nothing works, try a libffmpeg.so for the next version of Chromium and so on. Once you have the zip/deb file, extract it to get libffmpeg.so. Then, create the folder lib_extra in Opera's install folder that you took note of in opera://about earlier and put libffmpeg.so in the lib_extra folder. The path to libffmpeg.so should then be opera_install_folder/lib_extra/libffmpeg.so. On Linux Mint, that'd be /usr/lib/x86_64-linux-gnu/opera/lib_extra/libffmpeg.so. On Arch Linux, it might be /usr/lib64/opera/lib_extra/libffmpeg.so. Again, goto the URL opera://about in Opera and look at the "install" path.

There's already ffmpeg wasm. I've used it in projects. Works great.

https://github.com/ffmpegwasm/ffmpeg.wasm

There's a low-hanging fruit that I think would make ffmpeg more helpful for regular people.

There's a million terrible websites that offer file conversion services. They're ad-ridden, with god-knows-what privacy/security postures. There's little reason for users to need to upload their files to a third-party when they can do it locally. But getting them to download fiddly technical software is tough - and they're right to mistrust it.

So, there's a WASM version of ffmpeg, already working and hosted at Netlify [1]. It downloads the WASM bundle to your browser and you can run conversions/transformations as you wish, in your browser. Sandboxed and pretty performant too!

If this tool a) was updated regularly b) had a nicer, non-CLI UI for everyday users and c) was available at an easily-Googlable domain name - it would solve all the problems I mentioned above.

[1]: https://ffmpegwasm.netlify.app/

As their github page says, based on https://ffmpegwasm.netlify.app ...

I'm guessing no one did GPU-optimizations? I saw a web app (not an ffmpeg transpilation) that went clever and used WebGL so it can access the GPU and use its parallel processing capabilities...

OP just implemented https://github.com/ffmpegwasm/ffmpeg.wasm in their own frontend, nothing special really.

One that comes to mind is the WASM port of FFmpeg:

https://github.com/ffmpegwasm/ffmpeg.wasm

Another is the SQLite WASM project:

https://sqlite.org/wasm/doc/trunk/index.md

Also v86 for x86 machine virtualization in the web browser:

https://github.com/copy/v86

Possibly more interesting projects to be found here:

https://github.com/topics/wasm

I’d look seriously at ffmpeg wasm though… https://github.com/ffmpegwasm/ffmpeg.wasm

It wasn't long after this I happened to come across FFmpeg ported to WebAssembly! I was a bit occupied with several other projects at the time, but I knew right away that I wanted to migrate my cumbersome script into a nice and dynamic web application, so I whipped up a little prototype that night.

Hey hey! I made this converter because I was fustrated with the existing options. Many of them work by sending the file to a server for processing, which is slow on low bandwidth and usually incurs restrictions or paywalls, and god knows what they do with my incriminating files. I found a library called FFmpeg.wasm that runs on Web Assembly, which I used in this project.