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Tool
Description
Type
Rating
Comment
Alparysoft Lossless Video Codec is created for lossless video compression. The techniques, used by this filter, allow to compress videos 1.2 - 1.5 times better than HuffYUV.

Freeware
OS:Windows
Version:2.0
Released:May 26, 2004
File size:194.3KB
Old versions available
Version history available
6.7/10
11 votes




Alparysoft Lossless Video Codec screenshot
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Latest version

2.0 (May 26, 2004)



Download sites


Download Alparysoft Lossless Video Codec 2.0  [194.3KB]



Download Alparysoft Lossless Video Codec old versions

NameDate(Y-M-d)Size
alparysoftlossless.exe194kB
1 files194kB



Supported operating systems

WinWindows



License

Freeware



Version history / Release notes / Changelog


v2.0 (19.05.2004)
The algorithm of visually-lossless compression is added, that allows increasing of video compression ratio in several times (that is why the codec's version has raised in one unit).
The bug appearing during a work with Adobe Premier was fixed, now codec is compatible with this program.
A number of input and output converters is added, that is why an opportunity to transform formats for input and output streams appeared (RGB -> YUV). It increased codec's compatibility both with various capture boards and with different video editing programs. Moreover, usage of some formats allows increasing the speed of video editing greatly.
General operating speed of codec is increased.
An opportunity both to allow/prohibit the usage of different media formats and to set their priority appeared.

View full changelog



Sections/Browse similar tools





Alternative to Alparysoft Lossless Video Codec


HuffYUV



Lagarith Lossless Video Codec



MLC lossless codec



MSU Lossless Video Codec



PICVideo MJPEG



Toponoky






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11 comments, Showing 1 to 5 comments

bit of a pain really as thier site is down and you can't register to remove logo
pity as i had archived some material in this format and it looked great but now i'm stuck with this logo



Jan 4, 2009 Version: 2.0 OS: WinXP Ease: 10/10 Functionality: 10/10 Value: 10/10 Overall: 1/10



This tool is obviously still in developement but it is promising. The main problem is it is way too taxing on the CPU. If your CPU doesn't support SSE don't even bother with it. On my Athlon XP 2600 Barton, I got the Visually Lossless setting with a compression of 4 to work and that was the only one. The others were too CPU intensive.
A setting of 4 put it at around 75%-95% CPU in virtualdub with no lost frames while recording from analog 720x480@29.97fps NTSC YUY2. This was with preview disabled in Virtualdub and nothing else running on my PC. With Huffyuv 2.1.1, I was getting around 500MB/min. With that setting I was getting 100MB/min with Alparysoft and I think it looks great.

Bottom Line: Lossless mode is junk... If you like the quality of Visually Lossless mode and your CPU can handle it, go with it. Hopefully they'll optimize the code a lot more. It needs it.



Jan 1, 2006 Version: 2.0 alpha build 957.040607 OS: WinXP Ease: 5/10 Functionality: 9/10 Value: 5/10 Overall: 6/10



I use it in lossy mode to capture video at 720x576@25fps PAL with VirtualDub.
It has similar CPU load than Xvid, the other I sometimes use.
However editing the captured video is easier with this one than with Xvid.
Visual quality looks very good.



Dec 15, 2004 Version: 2.0 OS: WinXP Ease: 7/10 Functionality: 7/10 Value: 10/10 Overall: 8/10



Their website claims compression ratios of 2-5 in the lossless mode, but the result of my (limited) tests so far show that it does worse than Huffyuv, not better.

My test video was a PAL VHS capture (YUY2, 720x576, 25fps, interlaced), which included typical VHS noise (not excessive). The clip was about 2000 frames.

I tried the default lossless mode and it /doubled/ the file size! This was probably due to VDub feeding it RGB frames, so next I enabled the "Convert to YV12" option and while that improved matters a lot, it still left the compression ratio a few percent worse than Huffyuv. With YV12 it should be doing better than Huffyuv if only because YV12 takes less space to begin with than YUY2.

I also tried enabling the "Interlaced source" option which claims to compress each field separately. That made little difference to the compression (still worse than Huffyuv), but did produce a video which was corrupted on playback both in media player and VDub. The picture was still recognisable, but something awful had happend to the interlacing.

It is possible that the problem was the noise. Perhaps the AlparySoft algorithm would do better than Huffyuv on a filtered video, but really I expect that if it can't keep up with Huffyuv on speed, then it should at least match Huffyuv on compression regardless of the circumstances.

On speed, in VDub this codec managed a frame rate on the above video of around 15fps on my 2.6GHz Celeron home PC.

This codec also crashes when I attempt to use it in my homebrew video testbed app. This could easily be a bug of mine, but I've had no problems with other codecs. It does however work fine in VDub so I'll reserve judgement on this issue.

In its own terms this codec is a credible performer, but I see no reason (so far) to prefer it over Huffyuv.



Nov 14, 2004 Version: 2.0 OS: WinXP Ease: 8/10 Functionality: 7/10 Value: 10/10 Overall: 7/10



This codec is not bad but it is much slower than the Huffyuv 2.1.1 codec and even though it claims to be lossless I did notice a very slight loss in quality.
I would recommend Huffyuv 2.1.1 over this codec anyday!



Apr 26, 2004 Version: 1.6 OS: WinXP Ease: 9/10 Functionality: 5/10 Value: 5/10 Overall: 6/10


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