Troubles converting unusual xvid to DVD

[mele]

I'm having troubles with converting certain files. Below should be a screenshot of the Gspot information about the file. It's a 700mb xvid file of about 40 minutes long (don't know why it's so large to be honest, most 40~min files with xvid are around 350mb). After having tried several of the convert guides on this site, I've come to the forum to ask for help.



I extracted the audio and saved both individually, so I got a sound.ac3 and a video.avi (without sound) Then when I try to convert it, using TMPTEnc Plus 2.5 I get a very nice quality file...m2v I believe, but with stuttering, it runs for 2 secs then 0.3 sec freeze then 2 sec runtime again and a freeze etc etc..

I use the following settings, but I've been tinkering with them for ages now, I just can't seem to fix it.

- Constant bit rate or 2 pass VBR
- 3:2 pulldown when playback
- 9 bits DC component precision
- motion estimate search
- source aspect ratio 16:9 525 line (NTSC)
- Full Screen (keep aspect ratio)
- Inverce telecine (convert to 24fps : non interlace source)

Notice in gspot that the fileformat is a bit weird...it's 960 x 528 basically I just want it in the same high quality with the pretty sound in the right format, I don't want to change the aspect ratio or anything else...just the same file, but in dvd compatible format....suggestions anyone ?

[monzie]

Looks like its a PAL (25 fps) avi to me (from a mpeg2 16:9 flag source).....the clue being the resolution and not the framerate. Encode as PAL...hope your in Europe as lifes soooo much easier.

[dartboard]

No, I think it is ntsc FILM since the frame/sec is 23.97

Try running it through virtual dub to check for bad frames. I assume the stuttering is on the file on the hard disc since stuttering on a burnt dvd could be bad media.

[johns0]

Dont use Inverse telecine (convert to 24fps : non interlace source),stick to 3:2 pulldown when play back on 23.976 only.

[fritzi93]

Does the AVI stutter as well, or just your MPEG? Maybe you need a different XviD codec, or you could try ffdshow instead. Or it could be the header is buggered, I've had that a couple times. Running it through VirtualDub would fix that. Or you might have bad frames, or...?. Then again, you might be buggering the encoder settings- have you tried just loading a DVD template? Try the easy stuff first, of course.

Good luck.

[monzie]

Since when has 960 X 528 been a NTSC avi resolution (unless it was a 25FPS original soure re-encoded to 23.97 ?) to save space or a half house conversion?

[mele]

the original is american made, so it doesn't help that I live in europe myself. There are no signs of stuttering or bad frames in either the original or the video.avi I extracted from it (the one whehere I cut out the sound)

I have tried it with and without inverse telecline, the endresult didn't change. As for the weird format, it's something like hdtv, wdtv..or maybe hr-hdtv perhaps ?

[lordsmurf]

Go get the new GSPOT v2.51 or higher. It gives more info.

[mele]

Switching to PAL instead of NTSC seemed to have helped, the stuttering is gone completely.

Anothing quick question, even with 2 pass VBR and a bit rate of 8000 the output file doesn't seem as ..sharp as the original. The edges of surfaces are a bit pixely or something. In a video game you would turn anti aliassing on to counter act it, Is there a way to sharpen everything ?

what would be the best way / program to do it ?

[mele]

anyone ? I was thinking maybe it's because of the resolution change ?
the file is 960x528 but TPGenc has 720x576 as largest possible resolution.

What I would like to know is...is there a way to convert it while staying in the same resolution ?

[lordsmurf]

No.

[junkmalle]

PAL DVD's are restricted to 720x576, 704x576, 352x576, and 352x288 frame sizes.

I don't know how Tmpgenc handles resizing but might get clearer results using the Lanczos3 resizing of VirtualDub and frame serving to Tmpgenc.

[mele]

I found out how to use a frame server...works like a charm, just not certain as to what Lanczos3 is or how I use it ?

[junkmalle]

I found out how to use a frame server...works like a charm, just not certain as to what Lanczos3 is or how I use it ?

Lanczos3 is one of the resizing methods in VirtualDub. In VirtualDub select Video -> Full Processing Mode. Then select Video -> Filters. Add the Resize filter. Set the Width and Height fields to the size you want. Then for the Filter Mode select Lanczos3.