[Lossless] Ut Video Codec

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Re: [Lossless] Ut Video Codec

Postby BasharOfTheAges » Tue Sep 28, 2010 10:34 pm

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I want to smack people who think that SD can't be widescreen.

Fuck you. you know what I mean. 4:3, 720x480 broadcasts streaked to widescreen.
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Re: [Lossless] Ut Video Codec

Postby Mister Hatt » Wed Sep 29, 2010 1:06 am

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Re: [Lossless] Ut Video Codec

Postby Kawatta-kun » Sat Nov 20, 2010 10:41 am

I'm sorry if this question was already made!!

I work with Sony Vegas, and installed UTvideo codec.
Now, it gives me 4 options:
UT Video Codec RGB (ULRG) VCM x64;
UT Video Codec RGB (ULRA) VCM x64;
UT Video Codec YUV420 (ULY0) VCM x64;
UT Video Codec YUV422 (ULY2) VCM x64.

What those mean, and what is the best or the most adequate for compression?

I also installed 32bit version, bue yet not experimented (will instal Sony Vegas 32bit because of other issues, try to most likely).
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Re: [Lossless] Ut Video Codec

Postby Zarxrax » Sat Nov 20, 2010 11:38 am

Each version compresses to a different colorspace.

The first one is RGB32 colorspace.
The 2nd is RGBA.
Third is YV12.
And last is YUY2.

If you don't understand that, you can read about colorspaces in the guide linked in my signature.
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Re: [Lossless] Ut Video Codec

Postby Kawatta-kun » Sat Nov 20, 2010 12:24 pm

I have read it now.
Sooo, this is saying is that, it is better to compress in YV12 and YUY12?
If so, I can't quite yet see the point >_<'' advantages and so .
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Re: [Lossless] Ut Video Codec

Postby mirkosp » Sat Nov 20, 2010 1:17 pm

YV12 makes more sense than YUY2 since your footage already is YV12 to begin with and it will make you save space.
Also, Alan got it slightly wrong: ULRG (the first one) is RGB24 and not RGB32, as RGB32 and RGBA are the same thing (and thus you can say that ULRA is RGB32, instead). The difference between the two colorspaces is the presence (or lack) of the alpha (the transparency) channel, which you do not have in RGB24 but have in RGB32. If you want a simple way to keep in mind which is which, here's why they are named like that: the numbers come from the fact that they are 8bpc (8 bit per channel) colorspaces, which means that for every colour on every pixel you have 8 bit. RGB24 just has red, green, and blue, so that's 8*3=24. RGB32 has red, green, blue, and alpha, so that's 8*4=32. :wink:
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Re: [Lossless] Ut Video Codec

Postby Snowcrash » Sat Nov 20, 2010 2:11 pm

I've been working with Utvideo for my last vid.
It's really better to decode my rushes in my editing software (especially when I got a little hardware config - i edit with a netbook... 3 years-old... Dell... Inspiron 1520 T_T)

Anyway I would like to know if anyone here got some problem doing rush in VirtualdubMod with the batch jobs option. And at each time, I got at least one or more errors in my list of operations. It's very annoying because I have to start again the missed jobs.

Is it a problem of codec ? Or should I reinstal VDM ?
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Re: [Lossless] Ut Video Codec

Postby mirkosp » Sat Nov 20, 2010 3:44 pm

DO NOT USE VIRTUALDUBMOD!
It's old and unsupported, and you really don't care about the extra features it offers! Unless you want to make an OGM, which I doubt you do.
Use the plain VirtualDub instead, get it from here: http://virtualdub.sourceforge.net/
Check which version of virtualdub was used as a base for virtualdubmod, then check which version of virtualdub we're on and look at the changelog... now you understand why we say to use virtualdub and not virtualdubmod. :)
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Re: [Lossless] Ut Video Codec

Postby Snowcrash » Sat Nov 20, 2010 7:20 pm

Oh I know VDM is not developped anymore and it's effectively because of the extra features I use it ^^
But effectively, VirtualDub is often updated. So I will use next time for lossless encoding.
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Re: [Lossless] Ut Video Codec

Postby Enigma » Sat Nov 20, 2010 8:21 pm

Well, all the extra features VDM has are included in Virtual Dub, or can be used with other things such as AvsP
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Re: [Lossless] Ut Video Codec

Postby mirkosp » Sat Nov 20, 2010 11:06 pm

Indeed, as Enigma said, most of the extra things are available through much more powerful tools, such as AvsP as far as avisynth coding goes, for example. But pretty much any other feature is available by other (better) means.
OGM encoding really is the only reason for which you might still want to use VDM, and even then I doubt you want or should encode to OGM anyway.
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Re: [Lossless] Ut Video Codec

Postby Kawatta-kun » Sun Nov 21, 2010 4:18 pm

I'm having player problems with it.
Compressed, and tried with all four of them, and in all of them it does not play properly.

PS: Was tryin' on a 720p.
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Re: [Lossless] Ut Video Codec

Postby mirkosp » Sun Nov 21, 2010 5:38 pm

You shouldn't really be playing them, as lossless codecs are just meant for usage while editing, so, as long as it works in your NLE, you have nothing to worry about.
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Re: [Lossless] Ut Video Codec

Postby Kawatta-kun » Sun Nov 21, 2010 5:41 pm

I can't really test it out on my editing program, but I can say this. Every time the file acts like that in mediaplayer, in the edition program it does not play properly either.
Then, what to do?
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Re: [Lossless] Ut Video Codec

Postby mirkosp » Sun Nov 21, 2010 5:50 pm

What player did you try it in, anyway? For example, VLC will *not* play it, because the utvideo codec is not part of ffmpeg (yet, anyway).
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