correct resolution setting for avi

[hokkom]

Hi,


I want to convert some dvd videos but I have a question regarding setting the correct resolution for converting a standard dvds to an avi file. Some video converter programs ask what is the resolution size and I’m not sure what to size to set the resolution.


The videos in question has the following resolution obtained from vlc and MediaInfo
Resolution 720 x 576 Pal format
Resolution 720 x 480 NTSC format
Aspect ratio 4:3 for both

I don’t want to set it small and cut off parts of the video. Any help and advice will be greatly appreciated.

I am still in the learning stages of being able to convert my dvd to avis. I currently useing avidemux and avi.net as my conversion programs.


Thanks

[Hikmet]

If you don't want cut, use resolution of source video.

[hokkom]

If you don't want cut, use resolution of source video.

Thanks for the reply Hikmet. I got it now.

[jagabo]

And set the aspect ratio flags. And hope the player supports AR flags. If your player doesn't support aspect ratio flags resize to any 4:3 frame size. 768x576, 720x540, 640x480, etc.

[hokkom]

And set the aspect ratio flags. And hope the player supports AR flags. If your player doesn't support aspect ratio flags resize to any 4:3 frame size. 768x576, 720x540, 640x480, etc.

Thanks jagabo. I usually use a Phillips standalone dvd player that can play xvid and divx videos. I do plan to make an avi and see how it looks. How can I tell if my player supports AR flags?

[jagabo]

All the Philips DVD/Divx players I've used support AR flags in Divx/Xvid AVI files. You have to keep the frame size at or below 720 pixels wide and 576 pixels tall -- which won't be a problem for you.

[hokkom]

All the Philips DVD/Divx players I've used support AR flags in Divx/Xvid AVI files. You have to keep the frame size at or below 720 pixels wide and 576 pixels tall -- which won't be a problem for you.

Thanks for your answers jagabo. That sounds great, one less thing to worry about.

[enim]

come on, have a beer while we talk,

I usually use a Phillips standalone dvd player that can play xvid and divx videos.

hope you just wanna convert DVD to XViD or DiVX with a nice quality.

some basics:
1) know exact total running time of your movie and calculate bit rate for 2CD or 1488MB using bit-rate calculators for DiVX or XViD.
so you can have at least 3 movies on one DVD.
2) if you are also watching on PC, deinterlace properly. try various filters and select one that gives to nice and crispy looks.
if you are storing on CD or DVD and playing in Phillips player, do not deinterlace it.
3) crop the top and bottom black bars, just keep 2 to 4 pixel margin, so encoder can allocate all the bits to motion picture.
4) Turn off GMC, QPEL and packed bit stream options in encoder settings.
5) Maintain same resolution, size, and aspect as source.
6) Stand alone DVD player can play only mp3 (lame : encoded) or AC3 (direct stream copy).

[hokkom]

hope you just wanna convert DVD to XViD or DiVX with a nice quality. Yes, that's what I want to do.

2) if you are also watching on PC, deinterlace properly. try various filters and select one that gives to nice and crispy looks.

if you are storing on CD or DVD and playing in Phillips player, do not deinterlace it.



Thanks enim your instructions were pretty awesome, however, I'm not sure how to go about step 2 in you guide.
I will be storing the avis on DVDs to be played in my standalone phillips dvd player.
I'm not sure on how to deinterlace properly, and have not use any of the various filters.


I am currently using Avidemux 2.64 and Format Factory as my dvd converters.

[enim]

I will be storing the avis on DVDs to be played in my standalone phillips dvd player.

i am not pretty sure that XViD/DiVX encoder algorithm in Avidemux is capable to maintain interlaced source as is. you can try converting one movie with and second without deinterlacing. you can see the difference by yourself while you play/watch.

I'm not sure on how to deinterlace properly, and have not use any of the various filters.

to help you out, lurking into Avidemux documentation out of curiosity and found bunch of interlacing filters, read and try. Somehow I am biased to yadif.

[hokkom]

i am not pretty sure that XViD/DiVX encoder algorithm in Avidemux is capable to maintain interlaced source as is. you can try converting one movie with and second without deinterlacing. you can see the difference by yourself while you play/watch.

lurking into Avidemux documentation out of curiosity and found bunch of interlacing filters, read and try. Somehow I am biased to yadif.

Thanks again emim. I will definitely have to do some reading up on those filters. They sure look interesting.

[jagabo]

Since you don't know what you're doing, you should consider using software that handles everything for you. AutoGK or Xvid4PSP are good choices.

If you want learn how to do it all yourself, I recommend using DgIndex, AviSynth, and VirtualDub. Index your VOB sources (and demux the AC3 audio) with DgIndex. Open the video with Mpeg2Source() in AviSynth. Inverse telecine or deinterlace as necessary. Open the AviSynth script in VirtualDub. Import the AC3 audio. Configure Divx/Xvid settings. Save as AVI.

[DarrellS]

I second Jagabo on the DgIndex, Avisynth and Virtualdub route. The help guide in DGIndex is pretty explanatory and there are people here to help. IMO, it's worth your while to learn how to use the programs. Virtualdub is my favorite editor and pretty much the only one I use for video. Once you master Virtualdub, there's not a whole lot that you can't do with it. There is a Virtualdub forum also. Other programs are quick and simple but by going the aforementioned route, you're less likely to run into sync issues that you might otherwise get.

If money isn't an option then I'd recommend Videoredo since it has a quick fix feature that automatically fixes any sync issues. It doesn't support AVI but it saves to an MPEG file without re-encoding that you can load into Virtualdub and compress to DivX/XVID AVI.

EDIT: I guess money is an issue if you're encoding to DivX or you'd be encoding to H264 to play on a media player or USB capable TV..

[hokkom]

@ jagabo and DarrellS

Yes, I would definitely like to do it all myself. I did try virtualdub but I couldn’t get all the pieces to work together. But I do agree this is certainly the best way to go if one can master the fine art of using them all properly. I think that I will give virtualdub another try along with the recommended application DgIndex and Avisynth.