Just a few questions - General Discussion

RE: Just a few questions

Balázs — Sat, 23 Jan 2021 22:19:26 +0000

Apparently that is because the codec does allow decoding 10-bit YUV 4:2:0 as both P010 and P210, doing 4:2:0 -> 4:2:2 interpolation for the latter while decoding.

By default the codec actually presents v210 when asked about 10-bit YUV 4:2:0 what to decode as. This is because at the time MPC didn't support P010 at all, so it was for compatibility. Still, the codec can be forced to decode as P010, it's just by default it presents v210, and that's what most software go along with (assuming naturally that what the codec presents by default is the best choice).

You can try specifying the pixel_type="P010" parameter for AVISource(), perhaps it might force it to decode as P010.

RE: Just a few questions

Helly — Sat, 23 Jan 2021 17:38:34 +0000

I hope it's ok to revive this topic, it is about the update requested in this topic so i thought it would fit.

So i did a 2160p60 4:2:0 recording a while ago and i tried to encode it but like you said it would take a while to trickle down. That's still not happened AFAIK, so today i tried to load the video using avisynth AVISource (the video is an AVI). It plays fine through MPC-HC. So the script works, MeGUI loads it fine but when trying to encode it i get an error saying 4:2:2 input is not supported. So that's weird, i checked in MPC-HC and there to it claims the video is 4:2:2(p210).

Just in case i missed something or did something wrong i recorded a few frames making sure its set to P010 and MagicYUV 4:2:0 10 bit encoding, and that also reports as being p210.

The video decoder says "video: Y3"(no idea what that really means though), using MadVR as output and says its p210.

Is this a bug in the codec or am i doing something wrong trying to encode it?

edit: adding ConvertToYUV420 in the avisynth script makes it ouput as p010.

RE: Just a few questions

Balázs — Mon, 21 Sep 2020 22:42:44 +0000

Hi,

I'm terribly sorry for the very late release, I just released 2.3.0, it really should have been released before the summer, but things got in the way.

Anyway, it now includes 10-bit YUV 4:2:0, however open-source tools based on ffmpeg won't be able to decode it until they implement decoding for this variant. Which shouldn't take too much time to do, however it might take a while to trickle down to all the various software using ffmpeg.

RE: Just a few questions

Helly — Fri, 21 Aug 2020 08:11:39 +0000

Hey there, here i am again. 4 months later, still hoping for the update. Hope you're doing well. Any chance for a release soon? 🤩

RE: Just a few questions

Helly — Sat, 06 Jun 2020 15:18:49 +0000

I'm not much of an editor. I only do some basic stuff sometimes with adobe premiere. Usually i just chop out the pieces i want with virtualdub and then append them together with that as well. That's about all the editing i do :P.

Afterwards i encode the resulting video with MeGUI to x265.

RE: Just a few questions

Balázs — Sat, 06 Jun 2020 14:20:23 +0000

Sorry for the delay, I got caught up in other things. Essentially 10-bit YUV 4:2:0 was basically done in a few days, with one minor detail left unfinished.

What editor would you like to edit the video after capture?

RE: Just a few questions

Helly — Mon, 01 Jun 2020 11:00:34 +0000

Still eagerly awaiting the update, any idea when i can start making some glorious 2160p60 10bit video's? Don't want to rush you but please say soon 😋

RE: Just a few questions

Balázs — Tue, 05 May 2020 07:51:49 +0000

Regarding Rec.2020: Yes, it is a bit unfortunate how it works now. Adding Rec.2020 could also increase confusion btw, since it might give the false impression that it'll be Rec.2020 just be setting that option. So there are no easy answers here. I'll think about what to do here.

@trevor Suggestion noted. P010 support and 10-bit YUV 4:2:0 is already done, I'm just pondering about releasing it together with the Vegas plugin, as that is also basically ready.

RE: Just a few questions

Trevor — Mon, 04 May 2020 23:10:57 +0000

Just want to second adding P010 support as it's the only 10-bit format supported by the AVerMedia Live Gamer 4K and the Elgato 4K60 Pro. Besides, your archnemesis Ut Video added P010 in 21.1.0 😋

I’m also having a lot of difficulty capturing 2160p60 video with VD2 and MagicYUV. I have to use Ut Video with FFmpeg for lossless capture. My CPU is a 2700X. A “how to capture with VD2 and MagicYUV” tutorial would be much appreciated.

RE: Just a few questions

Helly — Mon, 04 May 2020 12:11:18 +0000

Seems pretty clear. I guess it's just a little confusing to see the color space as rec. 709 when you choose 10bit, and still be able to change it. For me that indicates that it matters what you choose there, from there knowing there's a color space above that, just makes you want to be able to choose it.

I fed the codec rec.2020 data and encoded it with hdr, it came out just as i expected, all good. So it seems to be working as its supposed to.

anyway, thanks for clearing it up!