[Lossless] Ut Video Codec

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Snowcrash
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[Lossless] Ut Video Codec

Post by Snowcrash » Thu Sep 23, 2010 8:16 am

Just a thread about a lossless codec I discovered recently : Ut Video Codec Suite
It's developped by Takeshi UMEZAWA. He updates often his blog (in japanese).

I didn't try it but it seems to be a good one. Maybe an alternative to Huffyuv or Lagarith ? Try to do some tests...

Here is a thread about it on doom9.
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Re: [Lossless] Ut Video Codec

Post by mirkosp » Thu Sep 23, 2010 8:20 am

Yeah, it's already set to be the next codec in the AMVApp. I've been recommending it here and there on the forum and IRC but forgot to actually make a topic about it, so thanks for that. :)

Just to add some data: it gets a compression ratio close to lagarith (compresses about 5-10% less at most, generally) but is way faster than both lagarith and huffyuv, especially when it comes to decoding and, thus, editing.
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Re: [Lossless] Ut Video Codec

Post by ngsilver » Thu Sep 23, 2010 11:25 am

I've been using UtVideo since Mirko suggested it after I updated to Win7 and had some problems with Lags. So far I haven't gotten any odd compression artifacts like Lags often would give me and overall the speed is really nice. It my testing so far the video is a little larger in size then Lags normally but is still much smaller then a huffy encode. Also, it runs faster on my system then even huffy does.

Overall I find this to be a great codec for editing with. Though it doesn't fix the issue that CS3 seems to have with exporting to a compressed format. Though the debugmode frameserver i've been using to get around that does the trick still in Win7 so I guess I can't complain too much.
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Re: [Lossless] Ut Video Codec

Post by Cannonaire » Fri Sep 24, 2010 12:41 am

I haven't used it on a full scale project yet, but I have done numerous tests using this codec (testing things OTHER than the codec as well), and it seems to work really well. Definitely faster encoding/decoding than lags. For some reason my system has trouble with using the 420 UTVideo decoding, but 422 works flawlessly. I don't know if anyone else around here has had the same trouble as I have. Slightly bigger filesize, but really for editing my main concern is speed and the codec being lossless.

Highly recommended. :up:
Also, thanks for telling me about it, Mirko.
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Re: [Lossless] Ut Video Codec

Post by Zarxrax » Fri Sep 24, 2010 9:54 am

What kind of trouble does your system have?

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Re: [Lossless] Ut Video Codec

Post by BasharOfTheAges » Fri Sep 24, 2010 1:55 pm

Probably munchies.
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Re: [Lossless] Ut Video Codec

Post by Cannonaire » Fri Sep 24, 2010 2:21 pm

After I encode anything to UTVideo 420, it will open and play correctly in VDub, but it will not open correctly through anything else. This includes Avisynth, any media player I have installed (ok, I guess I didn;t try that many), and also x264.exe (which really just means Avisynth won't read it correctly). I haven't tried to fix it yet since 422 has been working and there isn't any difference from 420 when using it for YV12 stuff, just 422 is a bigger file.
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Re: [Lossless] Ut Video Codec

Post by Zarxrax » Fri Sep 24, 2010 3:11 pm

If you are on a 64bit system, did you install both the 32bit and 64bit versions?
If for example, you only installed 64bit version, then a 32bit app will not be able to open it.

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Re: [Lossless] Ut Video Codec

Post by Cannonaire » Fri Sep 24, 2010 6:27 pm

Yes, I installed both versions. I was using 32-bit VirtualDub 1.9.9 as well. I should update that...
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Re: [Lossless] Ut Video Codec

Post by Mister Hatt » Fri Sep 24, 2010 11:21 pm

I've been using UTVideo since a few months before mirko has even heard of it and all the settings were in Japanese, do I get a gold star? It's a decent codec as long as you're careful with colourspace conversions as not all of them are handled correctly.

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