Ut Video Codec Suite - a new lossless video codec for Windows!

[Saturation]

Then it seems, that UtVideo codec version 20.3.0 is the last for me.
Very sad.
:-(

[umezawa_takeshi]

Today, UtVideo drops support of 32bit Windows.

NOTE: 32bit codecs running on 64bit Windows are still supported.

[djonline]

I found that UTVideo decoder is not good as Magic. It produce 4:2:0 non smooth line on red edge. It seems like chrome not interpolated after decode.

I apply Unsharp mask in Premiere with amount 350 to show differences.
Left - Magic, Right - UTVideo.
Look at dress/background line, it has vertical pixels in right picture.

[umezawa_takeshi]

Yes.

For example, in case of internal format is YUV420 (like ULY0) and input/output format is RGB:
- While encoding, chroma is the average of four pixels.
- While decoding, those four pixels use same chroma (i.e. not interpolated).

[djonline]

I work with video in Premiere 2019, there is RGB internal decoding. Screenshots from Premiere too.
What to do to make ut420 decode like magic420 ?

UTVideo 420 - bad chrome upsampling (look to left)


Magic 422 - some bad chrome upsampling, but better that ut420


Magic 420 - good chrome upsampling

[umezawa_takeshi]

Suppose interpolation is added, there are some implementation options:

- While decoding, how to decide whether to interpolate? (decoders configuration / flag in encoded data)
- There are several interpolation methods (MPEG1, MPEG2, ...). Which one should be adopted?
- How to deal with old format data which is created by old codec that doesn't care of interpolation.

What is the best / preferable choice ?


In case of MagicYUV:
- Encoders have interpolation configuration (ON/OFF).
- Decoders don't have the configuration.
- There is single interpolation method, probably (there is no configuration to select interpolation method)

[umezawa_takeshi]

Version 20.6.0 is released.

Performance Improvements

• UQRG, UQRA: Speed up encoding and decoding.
• UQxx: Speed up decoding.

License (GPLv2) / readme / Windows (exe) / source code / GitHub

[umezawa_takeshi]

Version 20.6.1 is released.

Bug fixes

• Indeterminate behavior in case of frame divide count larger than 64.

License (GPLv2) / readme / Windows (exe) / source code / GitHub

Note that the frame divide count is never larger than 64 if "Same as # of logical processors" in the configuration dialog is checked, even if the actual number of logical processors is larger than 64.

[jpsdr]

So, the last version supporting 32 bits OS is the 20.5.1 ?

Edit Corrected typo...

[umezawa_takeshi]

Originally Posted by jpsdr

So, the last version supporting 32 bits OS is the 2.5.1 ?

I mean "UtVideo supports 32bit Windows" as "I care about whether UtVideo runs on 32bit Windows or not". No version supports 32bit Windows now.

Probably current UtVideo can be installed to / runs on 32bit Windows, but I neither guarantee it nor confirm it.

[umezawa_takeshi]

Today, UtVideo drops support of Windows 7.

[Emulgator]

Sorry to hear that.

[umezawa_takeshi]

Version 21.0.0 is released.

New features

• Add a codec whose internal format is YUV420 10bit (FourCC: UQY0).
• UQY2: Add support of YUV422P16 input/output.

Performance Improvements

• UQY2: Speed up decoding to v210 a little.

License (GPLv2) / readme / Windows (exe) / source code / GitHub

[umezawa_takeshi]

Version 21.1.0 is released.

New features

• UQY2: Add support of P210/P216 input/output.
• UQY0: Add support of P010/P016 input/output.

Performance Improvements

• UQY2: Speed up encoding from / decoding to YUV422P16.
• UQY0: Speed up encoding from / decoding to YUV420P16.

License (GPLv2) / readme / Windows (exe) / source code / GitHub

[umezawa_takeshi]

Version 21.2.0 is released.

Performance Improvements

• ULxx, UQxx: Speed up encoding and decoding for high compression ratio video.

License (GPLv2) / readme / Windows (exe) / source code / GitHub

[Music Fan]

Hi,
I couldn't install last version (21.2.0) on XP 32 bit, is it normal ?

[richardpl]

XP support is removed and also 7 support, it is all explained.

[Taurus]

Originally Posted by richardpl

XP support is removed and also 7 support, it is all explained.

It installs quite well on Win7 64bit.
Dont know about XP.

[jpsdr]

For now, it still installs on Win7 x86/x64. The last version working on XP is 13.3.1.

[Music Fan]

Ok thanks, I will have to continue with Lagarith.
That's for an old capture card on an old pc, I'm not sure it could run under Windows 7 64 bit.

Originally Posted by richardpl

XP support is removed and also 7 support, it is all explained.

I didn't read the whole topic but I saw this in the first post ;

Minimum Requirement (from readme file)

-OS: Windows XP or later