mpg to avi(xvid) problem

[okman]

hello

i got a trouble in converting the video from mpg to avi, when i drag my avs file into virtualdub, then convert to avi, when i start the conversion, the virtualdub will suddenly close, so i wonder whether the avs script has something wrong or not? but the video still can preview in virtualdub. does someone can help me to fix that and modify my script? thank you so much!!!

i would like to convert the mpg format to avi (xvid) and resize from 4:3 to 16:9, the original resolution of the mpg file is 704x528, and the resized resolution is 640X360 (16:9), the avs script is shown below:

#avs script
DirectShowSource("C:\Documents and Settings\chowlim\My Documents\minji.mpg")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\IT.dll")
IT(fps=30,ref="TOP",blend=false)
LanczosResize(480,360)
Addborders(80,0,80,0)

the video information of mpg file

[manono]

Try making a D2V file first (using DGIndex) so you can use MPEG2Source:

LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\IT.dll")
MPEG2Source("C:\Documents and Settings\chowlim\My Documents\minji.d2v")
IT(fps=30,ref="TOP",blend=false)
LanczosResize(480,360)
Addborders(80,0,80,0)

That also takes the audio out of the equation, in case there's something funky with it. Add it back in during the encoding. In the process of making the D2V (using Honor Pulldown Flags) the audio will be demuxed. And people still use IT? Don't you want to use the better TIVTC?

[okman]

i'm a beignner in using the avs script and not much knowledge in video format, for IT filter, i just knew that when we resize the video, we should take this to avoid scanline blending together, is it correct about my script or no need to use the IT filter for that process, since the mpg file is downloaded form intenet, not DVD source. so do you have any other suggestion for my script?

[manono]

I just did some experimenting with IT. I was incorrect that you're using it as an IVTC. It's being used as a deinterlacer. Again though, there are better AviSynth deinterlacers. That IT filter is pretty old. If you don't know what you have and how to treat it, then upload a small 10 second piece - a piece with motion - so we can have a look.

Other suggestions? Well, like I said, using MPEG2Source is better, and might help with VDub crashing if it's doing so because of the audio. And converting a 1.33:1 video to 1.78:1 by adding black to the sides seems to me to be kind of pointless, but maybe you have your reasons.

[okman]

you are right! the main problem is that the audio did not take out, after took the audio out, i can convert it to avi format by using the virtualdub, for audio, i used the dvdavi to separate the audio from mpg file. for deinterlacer just used the IT filter for that.