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30th August 2003, 01:38 | #221 | Link |
retired developer
Join Date: Oct 2002
Location: Canada
Posts: 8,978
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I have 2 partitions, one for OS and one for Datas. I don,t like to have 2 OS and I'm french
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Detritus Software |
30th August 2003, 10:14 | #222 | Link |
Life's clearer in 4K UHD
Join Date: Jun 2003
Location: Notts, UK
Posts: 12,227
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It was just a thought!
All our work PC's (all 6 of them) we have 4no 8GB approx WinXP Pro 'boot' partitions, on an independant 40GB hard drive. One boot partition for geneneral/office use. One boot partition for video editing. And Mpeg1,2 & 4, WMV9 (.avi and wmv) and QuickTime encoding One boot partition for video editing. And RealMedia encoding. One boot partition to be used as a spare, should one of the other 'boots' crash or become unstable. All four of the 'Hire Out' PC's have WinXP Pro installed on them 3no times - and are formatted at least 6 times a year. At home my 'Media PC' has 3 boot partitions. XP Home x2 and Linux. And my main PC. And my main PC has XP Home x3. I take the view, that with hard disc space being so cheap and M$ operating systems being so expensive. It's more economical to install the Windows O/S's more than once! And the whole exercise saves time (and money) in the long term! Cheers
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30th August 2003, 17:03 | #223 | Link |
retired developer
Join Date: Oct 2002
Location: Canada
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hum... as a linux addict, I like to have a long and hard uptime Also, I don't want to waste my precious disk space on multiple Windows installation
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Detritus Software |
3rd September 2003, 19:55 | #225 | Link |
Registered User
Join Date: Feb 2003
Location: Riga, Latvia
Posts: 192
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2 C0mPr355
Whom did you ask? 2 all Sorry for the delays, I'm currently experienced a lack of time because of the disturbing phenomena called school I will try to finish the test tommorrow, but unfortunately I can't promise anything. |
12th September 2003, 16:34 | #226 | Link |
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Join Date: Feb 2003
Location: Riga, Latvia
Posts: 192
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I've finally got some free time, for two days
I've done almost all the encodes and tests, but my psnr script (which was kindly given to me by a helpful member of this forum) for rv9 doesn't work. Code:
n=3635 name="trailer rv9 550kbps.rmvb" source=avisource("trailer.avi").converttoyuy2().deleteframe(0).deleteframe(n-2) test=directshowsource(name,fps=25).converttoyuy2().deleteframe(n-1) compare(test,source,"",name+"psnr.txt",false) |
12th September 2003, 17:10 | #228 | Link | |
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Location: Seattle
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Quote:
http://forum.doom9.org/showthread.php?s=&threadid=56940 You can also enable PSNR in RV9 encoder with the calcPSNR codecProperty [d9 search for calcPSNR], to double-check the Avisynth compare numbers.
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13th September 2003, 22:38 | #230 | Link |
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Join Date: Feb 2003
Location: Riga, Latvia
Posts: 192
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When I try to use this script:
Code:
n=3635 name="trailer rv9 550kbps.rmvb" source=avisource("trailer.avi").converttoyuy2().deleteframe(0).deleteframe(n-2) test=directshowsource(name,fps=25).converttoyuy2().deleteframe(n-1) So, how do I convert this to YV12? |
14th September 2003, 17:54 | #232 | Link |
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dextorious:
Code:
n=3635 name="trailer rv9 550kbps.rmvb" source=avisource("trailer.avi").converttoyv12().deleteframe(0).deleteframe(n-2) test=directshowsource(name,fps=25).converttoyv12().deleteframe(n-1) |
14th September 2003, 23:13 | #234 | Link |
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Well that's RV9's own damn fault isn't it? Maybe it would be reasonable when comparing a VFR and a CFR video stream to compare the CFR stream's frames to the currently decoded image in the VFR stream? I don't know if that would be possible though. Ask the avisynth gurus.
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15th September 2003, 09:40 | #236 | Link |
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OK, firstly get the following and load the relevant one for each test using "LoadPlugin("c:\blah\blah\blah.dll")"
VQMCalc DLL SSIM DLL They should then be used by scripting your source file, or better, using VBLE and making an AVI as your source file. Then script the following to test VQM: Code:
LoadPlugin("C:\blah\vqmcalc.dll") source=AVIsource("C:\Video\Source.avs") test=AVIsource("C:\Video\XviD.avi") return VqmCalc(source,test,"results.log") Code:
LoadPlugin("C:\blah\SSIM.dll") source=AVIsource("C:\Video\Source.avs") test=AVIsource("C:\Video\XviD.avi") return ssim(source,test,"log.csv","score.txt",lumimask=true,scaled=true) Also, did you get the latest CVS build of avisynth? (google for 'CVS Avisynth', it should be the first result) As this provides an Overall PSNR value when running a compare. The average PSNR value that is stated can be biased as it just sums the PSNR of each frame and takes and average. The overall PSNR does something like sum all the MSEs (mean-squared-errors) of each frame, takes an average and then puts that into the PSNR formula giving an accurate output for the PSNR. I hope this helps. EDIT: Updates and changes to functions. Last edited by superdump; 15th September 2003 at 11:29. |
15th September 2003, 09:59 | #237 | Link |
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Oh, and the conditions of the VQMCalc plugin is that both dimensions of your video have to be an integer multiple of 8 (mod 8) and, as you know, they have to be in YV12 format for both SSIM and VQMCalc.
EDIT: Errors. Last edited by superdump; 15th September 2003 at 11:21. |
10th September 2004, 19:04 | #239 | Link |
MPEG1 FAN ;-)
Join Date: Mar 2004
Location: Galaži, Romānia
Posts: 75
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heeeeeeeeeeeeeelp!!!!!!!!!!!!!!!!!
hey
1. after writing the script what do you do with it? run in VDub or what? and... please be nice to me 2. how do you obtain those graphs? with excel? how? plz, someone, i really need to know. (to do a subj. test its easy but when it comes to obj i`m stuck, its not my fault that i`m almost a director (stil studying) not a video engineer please superdump make some time and write a full (or almost) guide (with writing the avs, how to run the avs , how to make graphs from the cvs data....). a stupid, i mean very stupid codec tester guide |
11th September 2004, 09:58 | #240 | Link |
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The method hasn't changed in the last year, apart from possibly using the CompareYV12 dll where appropriate. If you use either CompareYV12 or the internal Compare function you can use the Java XviD Stats Viewer to create some very nice antialiased graphs but I don't know how Sagittaire makes his SSIM graphs, he may have written a program for it. And yes, you do just play the resulting script in Vdub or mplayerc or whatever until it's played all the way through and then close it.
For XviD with b-frames in AVI you have to remove the first frame (unless using packed bitstream). Even then it's sometimes a real pain to get it to work. Thankfully everwicked is working on optimising his VQS objective program so that we can use that. |
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