this post was submitted on 03 May 2024
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[–] lud@lemm.ee 57 points 6 months ago* (last edited 6 months ago) (22 children)

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.

[–] AVincentInSpace@pawb.social 40 points 6 months ago* (last edited 6 months ago) (4 children)

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

[–] lud@lemm.ee 18 points 6 months ago* (last edited 6 months ago) (1 children)

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.

[–] AVincentInSpace@pawb.social 20 points 6 months ago (1 children)

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.

[–] lud@lemm.ee 6 points 6 months ago

I think it's more of a test for encoding, not sure if you are really supposed to try and play it in an app.

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