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As in the previous releases, the problem is not SMPlayer itself but the embedded mplayer which has been discontinued for working under Windows XP. The last compatible version was 37940 from 2017 if I remember correctly.

IDA-RE-things says the dll has nothing to do with the acceleration. Probably nothing more than placebo effect and/or pure coincidence? "We have no any Video decode acceleration handling in progwrp.dll. " https://msfn.org/board/topic/186133-thorium/?do=findComment&comment=1267631

I don't have GTX 980 or anything from 900 series, but I've just tried on an El-cheapo Acer notebook with nVidia 820M, Driver version 348.12 (Acer exclusive, came on the disk). It has the same issue with AV1 freezing! S,o we have a third, fully confirmed case!

Thanks for your contribution! This thread is meant to collect all methods to run YouTube and its videos under Windows XP in these days. I already wrote about SMPlayer here: https://msfn.org/board/topic/176299-latest-version-of-software-running-on-xp/?do=findComment&comment=1258461 https://msfn.org/board/topic/176299-latest-version-of-software-running-on-xp/?do=findComment&comment=1258479 For watching YouTube videos, I personally prefer PotPlayer and maroc's release of MPC, now in the version 2.2.1. Inside of UXP browsers on old, weak computers, I would use the extension uTube which is absolutely great. SMPlayer is unfortunately no longer supported but it is also a good one as long as it still works under Windows XP, of course. My experiment in a previous post was only meant to check if YouTube can be used natively inside UXP browsers on old, weak computers in these days.

You mean you helped with the siper fast Supermium's page deletion? One doesn't need to be a clairvoyant to predict millions of freak outs this evening.

"enhanced-h264ify" needs to be fully uninstalled for the browser to be able to properly load AV1, HEVC and VP9.

Because he wrote you, he has an extension "enhanced-h264ify" that prevents AV1 from loading and replaces it with H264. https://msfn.org/board/topic/186133-thorium/?do=findComment&comment=1267642

If you ask me, MSFN team might wanna put a warning on both, at least until it clears out. If it ever clears out. @Dave-H

No, @66cats had scanned the whole installer, not that precise file. Look below. https://msfn.org/board/topic/186133-thorium/?do=findComment&comment=1267118

A bit off-topic is no problem. But keep in mind I created this thread to be no longer off-topic in @roytam1 thread regarding YouTube Downloaders! But that conversely should not mean losing sight of the goal of this thread. Talking about a browser that you can't really use because it's not available to the public makes no sense at all in this thread and is totally off-topic. Please, contribute within the generously set framework of the topic of this thread! Here, we want to know all about YouTube using under Windows XP in these days. Thanks in advance! Greetings, AstroSkipper

I write through self-translation, so I apologize if I missed your English-language lines. Read more about the VK error here: https://repo.palemoon.org/MoonchildProductions/UXP/issues/2508 Thank you for your work for Windows XP users.

You're welcome! Personally, I prefer the portable version: https://github.com/smplayer-dev/smplayer/releases/download/v24.5.0/smplayer-portable-24.5.0.0-win32-qt5.6.7z But once again. The outer shell, SMPlayer, has been updated again and again, but neither mplayer nor mpv, i.e. the heart of the SMPlayer. Simply put, it's great on the outside, but a bit of a bummer on the inside. This is the real problem for Windows XP users.

Hello, I have created and uploaded small workaround for that issue. the build "5061.2". Now here 2 versions of adapter inside archive. One (without suffix) -- dont changes GPU process priority at all, (for those of you, who having such freezes), and another with suffix -- for wery weak CPU's w/o hypertreading (also works fine on very fast CPU's). Try it and write if it fixes the problem.

@66cats, thanks, I have compared 2 your recordings. And have found how to reproduce such freezes. Its occured only on weak CPU's (I have checked on one). When CPU usage is very high. It because in my Adapter DLL, the GPU process priority was fine-tuned for very weak CPU's to prevent whole system freezing, when videos played. (Even on 1-core weak CPU w/o hyperthreading). And to prevent audio glitches (in conjunction with Audio process priority). Even by cost of "freezing" of some video frames. Its here by design of my workaround for it. This problem not happens on fast CPU's, not loading the system very high. (Should not happen at least) I will experiment with process priorities more, and may be provide some switch to configure it, Or set another process priorities.

Can only show you screen recordings: win32's (version 1.1.something) yours (version 1.2.something) Again, if you know of a better way to show you what's happening, i'll give it a shot.

This is a fully legit question, I already wrote before, when it's impossible to make a hardware decode, it need s to fallback to software-only automatically. It doesn't happen with AV1, so it's a pure bug.

I can be mistaken, but I think MPC-HC is open source, why not use its resources? MPC-HC accelerates videos on my system without troubles.

Without hardware acceleration, the Thorium browser is nearly unusable on my weak hardware. Websites take ages to load completely, and videos cannot be played at all.

I checked this page not long before it got silently deleted without any announcement. I find it strange, if you ask me. Remember they made a dedicated thread about their fake page? I'm sure they would've written in advance in such serious case. Fishy, very fishy. And the timing of @66catsreport indeed matches the deletion!

Holy Hell! It's indeed 404. No page anymore. Probably too early to freak out? Or not? I mean, win32 always seemed like a nice guy to me, on the other hand, why the full deletion, esp, without any announcement?

The warning is there for ages. If you go to "manage extensions", click any extension and under "errors" you will see.

WinNTSetup 5.3.5.1 - fixed language file creation failed with 5.3.5 - fixed capture of mounted VMware disks - added support for multi language WIM files

I usually do not use the YouTube interface in New Moon 28 or other browsers under Windows XP. It was just an experiment to see whether it is possible at all on my underperforming, old machine in these days. And it is still possible and above all, without ads or anti-adblocker messages. As I already said, I normally send YouTube links to one of my external players or download them with one of my YouTube downloaders. For watching them in legacy browsers under Windows XP I use Invidious or the extension uTube.