CCE RT for various frame resizers

[mrbass]

Remember how SimpleResize is the fastest for SVCDs and Bilinear was pretty close but 2nd. Bicubic pulled up the rear as being the slowest but best quality IMHO. So I test these with DVD2DVD and the results are SimpleResize is now the slowest and Bilinear and Bicubic are the same. Supposedly Bilinear I think (which is the default) is supposed to be better than Bicubic in this case since it's not resizing the original video like it was with SVCD resolution.

Bottomline: just use Bilinear (default) for DVD2DVD conversion.

CCE RT 1.75 DVD2DVD
0=LoadPlugin(!SimpleResize.dll)
1=ConvertToYUY2().SimpleResize(^TargetWidth,^TargetHeight)
2=AddBorders(0,^BorderTop,0,^BorderBottom)
!SimpleResize.dll=C:\Program Files\DVD2SVCD\Avisynth2.5

Plugins\SimpleResize\SimpleResize.dll


---AVS Begin---
LoadPlugin("C:\PROGRA~1\DVD2SVCD\AVISYN~1.5PL\Mpeg2dec\MPEG2D~1.DLL")
mpeg2source("H:\GLADIA~1\source\DVD2AV~1.D2V")
LoadPlugin("C:\Program Files\DVD2SVCD\Avisynth2.5

Plugins\SimpleResize\SimpleResize.dll")
ConvertToYUY2().SimpleResize(720,480)
ConvertToYUY2()
----AVS End----

------------------------------------------------
CCE RT 2.09 DVD2DVD
0=BilinearResize(^TargetWidth,^TargetHeight)
1=AddBorders(0,^BorderTop,0,^BorderBottom)

---AVS Begin---
LoadPlugin("C:\PROGRA~1\DVD2SVCD\AVISYN~1.5PL\Mpeg2dec\MPEG2D~1.DLL")
mpeg2source("H:\GLADIA~1\source\DVD2AV~1.D2V")
BilinearResize(720,480)
ConvertToYUY2()
----AVS End----

------------------------------------------------

CCE RT 2.09 DVD2DVD
0=BicubicResize(^TargetWidth,^TargetHeight,^b_value,^c_value)
1=AddBorders(0,^BorderTop,0,^BorderBottom)
^b_value=0.0
^c_value=0.6


---AVS Begin---
LoadPlugin("C:\PROGRA~1\DVD2SVCD\AVISYN~1.5PL\Mpeg2dec\MPEG2D~1.DLL")
mpeg2source("H:\GLADIA~1\source\DVD2AV~1.D2V")
BicubicResize(720,480,0.0,0.6)
ConvertToYUY2()
----AVS End----

[The eDealer]

Isn't it better to crop only, because the small positiv quality effect from resizing counteract the complet interpolation of the rest of the pixels ??? (No point with SVCD!, only DVD!)

I think a crop with best possible macroblock and consideration of the overscan will be better:

e.g. (16:9/1:2.35, Filmpixel 718x426)
Crop(16,80,688,416).AddBorders(16,80,16,80)
rounded to 16 -> aspect ratio error 0%!

So you cut a little more, but no effect to the rest of the picture ?!
We talk about the differences of crop 704x426 to resize 688x416 thats <3,75% of all!
This is additional used for better BR in the rest of the film!
And btw.: It's also the fastes version!

[The Belgain]

Have you done any test for avi to dvd conversions (from an avi with a lower resolution than the DVD - ssay 640x...)? The results might be rather different.

I'll do this test if I have time. Should the quality be very much different?

[ralphthedog]

Same thing CCE(2.67) speed-wise here. I was quite surprised to find BicubicResize about 10% faster than Simple when Re-encoding DVD to DVD-R (PAL).

Been waiting for some of you DVD2SVCD heavies to get to this topic, which resize, or even whether there is any need to use a resize at all for DVD to DVD-R(16x9) backup.

[mrbass]

Originally posted by mrbass
---AVS Begin---
LoadPlugin("C:\PROGRA~1\DVD2SVCD\AVISYN~1.5PL\Mpeg2dec\MPEG2D~1.DLL")
mpeg2source("H:\GLADIA~1\source\DVD2AV~1.D2V")
LoadPlugin("C:\Program Files\DVD2SVCD\Avisynth2.5

Plugins\SimpleResize\SimpleResize.dll")
ConvertToYUY2().SimpleResize(720,480)
ConvertToYUY2()
----AVS End----


yes ..resizing it's definitely not needed. Perhaps a new option in the frameserver tab 'Don't Resize', SimpleResize, Bilinear, Bicubic. Then when doing DVD2DVD set the default to Don't Resize.

I did a few tests editing the .avs taking them out and it works fine. Also looked at my dvd2dvd-r guide and it doesn't have any resizing going on.

Now having said that I don't think it's giving a performance hit but heck I haven't a clue just from my limited testing. So then why did SimpleResize go slower than the other two? Well why is there two instances of ConvertToYUY2() in there? That's my guess.

[ralphthedog]

I actually removed the converttoYUY2() on the simpleresize line (I assumed I messed it up with my fiddling!!!), was still slower than Bicubic.

I had tried editing the .avs's and removing the resizers when I first started using DVD2SVCD to make elements for DVD-R (months ago) and couldn't see any problems(or speed increase), but not really knowing what the hell I'm doing I thought I'd err on the side of caution, leave it alone and await further instruction.

Thought I'd try that Bicublin unfiltered resizer plugin for speed on DVD-R, but I guess I don't need to now!!!