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28th March 2008, 13:40 | #61 | Link |
Mr. Sandman
Join Date: Sep 2003
Location: Haddonfield, IL
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not spec compliant.
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MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!! |
28th March 2008, 13:50 | #63 | Link |
Mr. Sandman
Join Date: Sep 2003
Location: Haddonfield, IL
Posts: 11,768
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you cant have VAQ and lumimaksing togheter... and lumimasking sux... so why you need a "separate" option?
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MPEG-4 ASP Custom Matrices: EQM V1(old), EQM AutoGK Sharpmatrix (aka EQM V2), EQM V3HR (updated 01/10/2004), EQM V3LR, EQM V3ULR (updated 04/02/2005), EQM V3UHR (updated 17/12/2004) and EQM V3EHR (updated 05/10/2004) Info about my ASP matrices. MPEG-4 AVC Custom Matrices: EQM AVC-HR Info about my AVC matrices My x264 builds. Mooo!!! |
28th March 2008, 17:23 | #64 | Link |
A hollow voice says
Join Date: Sep 2006
Posts: 269
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Sort of prompted by this thread, I've been pondering lumi-masking, and experimenting via the HVS plugin.
In the process, I came across something that makes me question the basic approach of the various implimentations, which is to act on the basis of (ie as a function of) the 'Y' component. 'Y', the luma component, is generally thought of as the gray scale part of an image, where large values for Y are brighter than small values. But a simple experiment I did the other days makes me wonder. I was looking at scenes where xvid seems to produce blocky results (darker colored areas) on my TV and adjusted the TV settings to turn color off. Now my thinking was that doing this would allow me to 'see' the luma component. Further, my thinking was that this would simply remove the coloration from the image, leaving me with just the (I'm grasping for words) lumimance / intensity / brightness / part of the image. And finally, my thinking was that the above two sentences say the same thing. When I turned the color off it became immediately apparent that they are NOT. One case that comes to mind was a segment from the movie Event Horizon, showing the ship in the clouds of Neptune's blue-tinted light. This was a darkish scene, everything shades of blue, the clouds of varying brightness - until I turned the color off. Doing so made a large portion of the (blocky) clouds basically disappear. Huh? I said. I tried similar experiements with other scenes - primarily blueish and redish images showing blockiness - and the results were quite consistant. Turning the color off made these areas largely black, rather that some low intensity gray as I expected. This led to another experiment which was simply to watch some xvid encodes with TV color turned off vs on. What I observed was that nearly all the blockiness, moving walls, contours, etc, in my encodes vanished when the color was suppressed. These observations triggerred a slew of thought processes, among them: -The 'gray scale' 'Y' luma component does not strictly relate to the perceived brightness of a color TV picture. As such, using the 'Y' value as the basis for Adaptive Quant may be missing the boat. -My efforts to combat 'blockiness' in my xvid encodes needs to focus on the chroma components rather than the luma... Comments? FYI - I'm toying with the idea of using the 'L' value from the HSL colorspace rather than 'Y' for AQ decision making... Comments? Last edited by plugh; 28th March 2008 at 17:27. |
29th March 2008, 20:29 | #65 | Link |
User of free A/V tools
Join Date: Jul 2006
Location: SK
Posts: 826
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Well, I didn't know that before, therefore I was asking for distinguishing these two options.
OK, now I see there's no need for "separate" option. Just would be nice if VAQ method was invoked through -vaq switch so as not be confused in the future when editing my scripts. Anyway, good comments can always help with such problem |
30th March 2008, 01:36 | #67 | Link |
Registered User
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Location: ::1
Posts: 1,236
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kypec, get a recent multithreaded build from the Multithreaded Xvid thread (a few pages back). Then copy the xvidcore.dll in the very first post in this thread to overwrite your old one. (Typically: C:\WINDOWS\system32\)
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30th March 2008, 12:27 | #68 | Link |
User of free A/V tools
Join Date: Jul 2006
Location: SK
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The most recent MT build I found is this archive xvid.cvs.head.MTK.2007.07.25.7z which contains 4 files:
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30th March 2008, 19:41 | #69 | Link | |
x264 developer
Join Date: Sep 2005
Posts: 8,666
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31st March 2008, 23:16 | #70 | Link | |
Registered User
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Location: ::1
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1st April 2008, 03:14 | #71 | Link | |
warpsharpened
Join Date: Feb 2007
Posts: 787
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And thus the MTK in the file name. I forget what it means, but it's the reason for the huge file. |
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1st April 2008, 04:05 | #72 | Link |
warpsharpened
Join Date: Feb 2007
Posts: 787
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Here's the latest xvid source-code with the latest VAQ patch.
Built with p-thread support so it's SMP enabled. Xvid_20080401_VAQ.rar |
1st April 2008, 07:54 | #73 | Link | |
Registered User
Join Date: Jan 2007
Posts: 151
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Quote:
Xvid 1.2.-127, Jawor's build with DivX profiles and VAQ (28.02.2008) http://jawormat.republika.pl/xvid.html |
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1st April 2008, 09:44 | #74 | Link | |
Registered User
Join Date: Dec 2003
Posts: 216
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Quote:
there seems to be something borked in your latest xvid-version. After installing it, it doesn't show off in virtualdub. Your version posted in this thread from 22nd feb. (http://www.fileducky.com/qRILYtae/) does. Olnima |
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1st April 2008, 10:57 | #75 | Link | |
21 years and counting...
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1st April 2008, 11:03 | #76 | Link | |
User of free A/V tools
Join Date: Jul 2006
Location: SK
Posts: 826
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1st April 2008, 22:21 | #78 | Link | |
Registered User
Join Date: Feb 2006
Posts: 1,076
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Quote:
(some earlier post suggested DISableing, others mentioned ENabling .. i'm confused : ) Last edited by G_M_C; 1st April 2008 at 22:23. |
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Tags |
xvid aq, xvid vaq |
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