Which Mpeg2 compression codec?

[yugurya]

With gspot i have read the codec name of a video, which is MPEG2_Video(MPEG2). In Virtualdub, I am inputting an avs script which reads an mpeg-ps(.mpg) video with filters. I want to ouse the smart rendering option to be able to save the filtered .mpg file as a compressed .avi file, but Virtualdub wont save it because the right codec is not chosen. So which codec decoder/encoder should i use to be able to use the smart rendering option(have tried ffdshow but couldnt find the right configuration)?

[poisondeathray]

.avs frameserves uncompressed video, so smart rendering won't work

But even if you didn't use .avs , vdub cannot smart render mpeg2

[AlanHK]

"Smart rendering" only works for saving a file in the same format as original, just recoding the changed parts.

You can use some MPEG editors, like MPEG-VCR, to do that with MPEG.
If you are converting MPEG to AVI, you can't do "smart" rendering at all.
Everything must be reencoded.

[yugurya]

Which MPEG2 editor is identical to the .avi based Virtualdub program with these features: no crash during rendering, no audio/video sync problems, not to expensive, can work with avisynth filters, has batching features, encoded video quality loss is minimum, has a working smart rendering option, rendering time is pretty fast for a low budget/free software? Should i use MPEG-VCR for this, or do you suggest another program?

[smartel]

avidemux may be close ...

[yugurya]

I was experimenting with avidemux, but i couldnt import an .avs file into it, and it has no buildin overlay-plugin as far as i can see, is there another way to import an .avs file into avidemux?

[smartel]

you've got to mess with AVS proxy GUI (an AVIdemux option) and import your script from that