Enlarging a DVD-sequence x2?

[bieurn]

I am wondering if it is possible to enlarge a DVD-sequence say x2 times. Then I would like to merge this sequence with other DVD-movie sequences and burn the merged sequences to a DVD.

My stand alone DVD-player has a Enlarge function, so I guess it must also be possible to edit sequences of a DVD-movie by enlarging.

But how do you do it?

I know how to merge sequences and to burn the DVD.

What I am wondering is what MPEG-editor/function I would need in order to enlarge this sequence x2. I am currently using DVD-Shrink to extract the desired sequence from the full DVD-movie.

/Bieurn

[killingspree]

you can accomplish the task by using avisynth to resize, then crop to dvd size again! you'll need to reencode though!

for more details see the various guides on avisynth and mpeg2 encoding!

steVe

[manono]

Hi-

You won't be able to do it using just DVD Shrink. As killingspree says, it'll have to be re-encoded. But if you know how to use AviSynth to frameserve into CCE or TMPGEnc, then there's a Zoom Plugin for AviSynth (http://www.avisynth.org/warpenterprises/files/zoom_25_dll_20030518.zip) that you can use for this.

But killingspree's suggestion of resizing up followed by a crop might be as good or better.

I'm assuming that the Zoom feature on my TV and DVD Player remote control is the same as what you mean by "Enlarge".

[killingspree]

zoom plugin looks like the thing at the first glance but has some serious downsides imho:

- only rgb32, which means additional colorspace conversions, which again results in worse quality.

- the resizer used seems to be very simple, not even close to lanczos (or something similar); honestly i do not know which filter is prefered for enlarging the video, i typically only use it the other way around! but warpenterprises himself mentioned that the resize filter used is very basic!

- it's slow, much slower than a combination of resize and crop, which are rather heavily optimized!

still an interesting find, honestly i didn't know this filter existed :) thanks Tom

kr
steVe