Probleme with the aspect ratio in VdubMod

[bbouchaib2002]

I have an mpeg2 file, witch can be played correctly with windows media player (with powerDvd filters : size 720x576 --> 4/3).
When I open it with VdubMod, the file is recognized as 544x576 and I have to resize it to 720x576 --> quality and time loss.
Can any body, first excuse my bad english, and explain to me where is the probleme ?

[Suiryc]

I don't know.
Since version 1.5.x VirtualDubMod uses fccHandler's MPEG2 mod for opening MPEG2 files. I personally don't know much about mpeg.

[Syncroniza]

I can tell you: There is no problem!
The real resolution of your MPEG2 source is 544x576 (following your information). When you are opening the file with the media player, a directshow filter (like the one from PowerDVD) is used to play the file. And this directshow filter reads the aspect ratio flag and resizes the image, so that you can watch the movie with a reasonable aspect ratio (like 4:3).
VirtualDubMod, of course, opens the MPEG2 file only with the real resolution. You have to resize it manually there (with virtualdub or avisynth filters) to get a 4:3 aspect ratio, as you already said.

By the way, resolutions like 544x576 or 480x576 are quite common in DVB streams. (I would assume that you recorded your file from such a source, too.)
Many digital TV stations are using lower resolutions to reduce bitrate... :(

[bbouchaib2002]

Originally posted by Syncroniza
resolutions like 544x576 or 480x576 are quite common in DVB streams.

Yes it's true, I have record TV in the HDD of my satellite receiver (dreambox) as video.ts and I've use ds.jar to convert it to an mpeg file video.mpg

Thank you Syncroniza ;)