Need help writing Avisynth script for resizing avi

[videocheez]

It was suggested to me by Baldrick that I can perhaps get better quality when encoding AVI to DVD by resizing the AVI to 352x480(ntsc)/576(pal). The only problem is that his suggestion involved using
AVI2DVD and I would like to use CCE instead. I would like to know what to write into avisynth for resizing the AVI from 640x272 to 352x480(ntsc)/576(pal).

Thanks in advance,

[bunyip]

Try this in the 'AVS' file:

LoadPlugin("C:\PROGRA~1\DVD2SVCD\MPEG2Dec\mpeg2dec 2.dll")
AVIsource("C:\XXX.avi")
ConvertToYUY2()
BicubicResize(352,480,0.0,0.6)

(NOTE: you will need to change the first two lines to match your paths and filenames).

[WeedVender]

AviSource("C:\video.avi")
ConvertToYUY2 # or you can use ConvertToYV12 if you have the beta
LanczosResize(352,480) # or you can try BicubicResize(352,480)

[videocheez]

What is the first line for. What is the plugin for.

Thanks in advance,

[bunyip]

That's where many of the filters reside - you can try running without it but I think the Bicubic Resize is inside this DLL.

[videocheez]

Thanks for your help, before I go to bed tonight I'll try your suggestions. Please explain the third and fourth numbers in the following line from your script:

BicubicResize(352,480,0.0,0.6)

Thanks in advance,

VC

[bunyip]

These two values are settings for controlling the 'crispness' of the resized image - the values shown here are the optimum for a good result - if you raise these numbers you will start to get distortions, try changing them and you get the idea.

[txpharoah]

Too much work, not enough quality difference to warrant it: Just use TMPGEnc PLUS and encode the AVI into a MPEG2 at 352x480 and it will be ready to dump into your favorite authoring program.

[bunyip]

No work at all - just type your script and open the AVS with CCE and encode - this speed of CCE vs TMPGEnc is the reward.

[txpharoah]

About the speed? It only take 2 hours at most to transcode a 90-minute movie, at least on my system. That's almost realtime, and you can't beat that with a stick.

If something else works for you, then go for it. But at least give my method some thought and maybe a quick try. Only way I learned.

[bunyip]

If you get that speed out of TMPGenc for DVD encoding then stick with it.

I'm sure a lot of users would be interested to know how you do it, most are facing times of between 5:1 to 12:1

[Doggiedaddy]

I must agree with you txpharoah, I am getting very similar results with TMPGEncPlus.

I have to say after only 1 week of testing the new [cheaper] version of CCE Basic. I do not see the great speed advantage over TMPGEnc a lot of people claim. It my be slightly faster but only slightly and so far, the results in quality have TMPGEnc way out in front in my book. Like I said this is only a week of tests, but I thought the difference would be more of an advantage the I am seeing. And if quality to speed ratio is factored in, I guess I was not missing that much after all. I also am getting some artifacts I can not seem to resolve I am fairly new to this .avs frameserving but It is not producing the quality I was expecting.

For the record I am averaging about 4 hours per project either way, full DVD Compliant output for authoring programs.

justmy2cents
Dd

[Fredd]

I agree with you guys. As frameserving + filtering slows down the process, I think dealing with 10 fps or less (in my case) is the same for TMPGenc and CCEB. I did a quick simulation and found that both encoders would take roughly the same time to complete the task.

But if the source was a straight AVI file without filters, CCEB would be faster. Also, I encode in TMPGenc in 1 pass CQ, but I'm obliged to use 2pass VBR in CCEB as there is no 1PassVBR. So... I didn't check intensively, but CCEB may be slower for my work.

[videocheez]

I like trying all suggestions but when I was encoding VCD's with TMPGE it would take 6-8 hours. When I encode to DVD using CCE it only takes about two hours for a flic thats 3 hours long. Where is there a good proven guide for encoding AVI to DVD with TMPGE. I would like to do a side by side comparison encoding the same movie using either method.
The guide that I followed from www.doom9.org worked nicely and the speed was incredible.

VC