Chad VLC

Me opening /dev/urandom as a raw video stream to watch some nice relaxing RGB static.

Weird. Anytime I do that I get Rick rolled.

FFmpeg enters the chat

Yeah, guess where vlc gets all that muscle…

I thought it was libvlc that covers that but no, it is indeed libavcodec which is part of the ffmpeg project. Does anyone here know the relationship between libvlc and libavcodec?

libvlc uses libavcodec

VLC relays on ffmpeg for a lot of video decoding, as do lots of other media programs. Go look up the legal notice on your TV and there’s a good chance the ffmpeg licensing information is in there.

FFmpeg is one of libvlc’s backends. A lot of stuff vlc can decode without calling ffmpeg.

Followed by MPV doing the same

Whenever someone ask me media player for Linux I suggest MPV but for Binbows I suggest VLC. I don’t know why?

IIRC VLC on Windows uses it’s own included ffmpeg libraries for decoding so you don’t need to mess around with Windows codecs.

I’m in the MPC-HC gang on Windows. Just so much more practical than other players. The main selling point was that full-screen the controls go away once you move the cursor off them, it was amazing. And no waiting for subs to be processed like VLC had to back then, never turned back so don’t know if that is still a thing.

I use mpv but the configuration is a big pain. Just try overriding a subtitle font in mpv, there are config files to change that don’t even exist by default and they live in different places depending on mpv version and it’s a huge mess.

I still do it because it’s lightweight and for some reason has better performance for me than VLC.

MPV.net for Windows is great.

I do the same because VLC has an installer on Windows while MPV you have to manually extract from a compressed folder and then run the install script from command line

I once thought of a movie while coughing into a microphone. I opened the recorded cough with VLC and it played the movie.

You don’t even need to cough with the right setting on. That’s just a safety feature for the uninitiated, so that they don’t submit freaked out bug reports.

My only regret is that I have but one vote to give this amazing post. Bless you, friend, a real treat.

I just discovered something that VLC REALLY didn’t like to play. A 4K50fps JPEG2000 YUV444 12bit lossless ~48 GB video that was only 1 minute long.

To be fair the bitrate of the video is insane at ~5700 Mbit/s. The bitrate is so insane that you should really consider using an NVME drive for playback.

MPC-HC could kinda play it but only with extreme stutter and lag. My CPU (Ryzen 9 5900x) was completely maxed out.

I think you need hardware acceleration for a video like this.

Forget playback. How was that video file recorded? How do you even store data that fast, let alone encode it?

You can read more about why and how it was made here: https://www.svt.se/open/en/content/

The only place I could find where I could kinda play the video is inside Davinci resolve, but it doesn’t look how I would like it to. Probably due to the apparent lack of HDR support in Resolve on Windows (unless you have a separate TV connected to the PC somehow.

Ohhhhhh. It’s a video decoder torture test. “If your app can play this it can play anything” sort of deal. That makes sense.

Also makes sense that VLC puked.

1 Terrabyte RAM with a 64GB RAM Drive perhaps?

Vlc has hardware acceleration afaik. I think its more a case of the ffmpeg codec not supporting it yet because what the actual fuck haha

Yeah, I think it’s a good idea to try ffplay if VLC (or mpv) fail.

I get similar results with ffplay compared to MPC-HC. I unfortunately haven’t been able to get proper hardware acceleration to work anywhere.

Or maybe it does work and it’s still bottlenecked by the CPU somehow.

Haha, that’s fair 😂

I think you need hardware acceleration for a video like this.

ok but why would anyone have a video like that

You can read more about why and how it was made here: https://www.svt.se/open/en/content/

It’s basically intended to test encoding and stuff like that.

Maybe some kind of super slow motion high resolution type thing?

Yeah I could definitely see this for slo-mo and data recording in an actual laboratory setting that requires it to be as accurate as humanly possible. Idk if this is a standard though I’m not a scientist.

but if you’re gonna watch it in slow motion anyways then why isn’t it saved as a slow video that is much longer?

Deleted by creator.

JPEG2000 = not lossless

JPEG2000 supports both. That’s why I specifically said that the video is lossless

https://jpeg.org/jpeg2000/

Right! Sorry, I assumed this was regular JPEG

Where can I try this

Here: https://www.svt.se/open/en/content/

I downloaded “natural complexity” or something like that. Unfortunately FTP downloads are limited to 100 Mbit/s so downloads can take a while. Imo they should make a torrent.

Certain programs can do multithreaded downloads on ftp servers. Winscp is one that can do it. Idk about other software

VLC is not script-frendly. mpv is the goat. You can even watch videos from YouTube and maybe from somewhere else.

I was team VLC for certain things it could do, and then I found that MPV could do all those things and more. Crazy how versatile it is.

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Chad VLC(lemm.ee)

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