From VirtualDub to Avisynth ?
 

I have an mpeg which i need to crop and i have done so with virtualdubmod cause i dont know how to with avisynth. So could some
one please tell me (if there is a way) how to frame serve to avisyth from virtualdub so i can then add the filters and so on.


Grateful for any advice . THANKS.

hey ftin,
this will help you:

How do I use 'Open via AviSynth'?

http://forum.doom9.org/showthread.ph...threadid=44244

:wink:

Movie Stacker (or FitCD)
 

If you able to use Movie Stacker (or the old FitCD) that is the way to go. Even if you are not saving the final Avisynth scripts in Movie Stacker it is excellent for quickly (and automatically) determining the croping paramaters for all types of resizing.

I have tried many strange formats and have not had a problem yet.


Grantman

Hi Ftin, if your source is mpeg-1, I agree to still use Virtualdub to open the file as there does not seem to be a stable codec with Avisynth (MpegDecoder () is still a bit unstable I am told). Frameserve is an otption under the file menu and results in setting up a signpost file xyz.vdr.

Use Avisource("xyz.vdr") as the opening command and do all your filtering here rather than in virtualdub. If you want to see the immediate effect of the Avisynth filters, I suggest opening a 2nd session of VirtualdubMod and open your resulting Avisynth .avs file. VirtualdubMod has a great in-built script editor where pressing F5 shows the immediate effect of changes. There is another great avisynth editing program called AVSCompare (search on google) where you can set up multiscreens side by side with the associated scripts. Check it out. Good luck :P

ozjeff99

Hello every one. Thanks for help but ...

(My sources are both mpeg1 and mpeg2)

1)Virtualdub wont let me open the mpeg2 via avisynth it says something like mpeg2source doesn't exist. ( i tried all the templates).

2)When i load the vdr file in avisynth and use grip fit it says source needs to be YUY2.

Also when i convert an avi using gripfit it comes out 16:9 but when i dont use gripfit it comes out at 4:3. Why is this? and if i wont to make it 16:9 without using gripfit do i just choose anamorphic in moviestacker?

Sorry for so many question at once but i seem to be digging myself a bigger whole every minute.

Hi Ftin...your points in order.

1. Latest version of VirtualdubMod should open mpeg2 directly without template.

2. Use command ConvertToYUY2() where you need to.

Gripfit has a parameter anamorphic=false which if you don't use it, it assumes it is true. Syntax is:
GripCrop(480, 576, source_anamorphic=false)

ozjeff99

I was actually trying to open the mpeg via avisynth in virtualdub but i worked it out , i just added LoadPlugin("C:\Program Files\Encoding\MovieStacker\Filters\MPEG2Dec.dll") to the mpeg2source template.

Could any one tell me if there are any advantages to encode in 16:9 rather than 4:3? cause i have many different aspect ratio sources and would rather keep every thing the same.
Cheers.

Hi Ftin, I would check that mpeg2dec opens mpeg2 files correctly that are not from .d2v. I had some problems a while back.

The ouptut depends on what you are displaying in on. If you only have 4:3 screen, use that.
ozjeff99

Ok cheers ozjeff99.