cropping problem in VDub/NanDub

[2ndson]

1st post here, so go easy on me! I'm having problems cropping files in VDub and NanDub - most of the time the cropping window is bigger than the visible screen so that I can't get at the slider and the buttons in the lower half of the window. I sometimes get lucky if I'm using the Brightness/Contrast filter.

Am I missing anything obvious? The other two filters I'm using (so far) are Null Transform and Resize.

Also, is NanDub only set-up to accept DivX and MPEG4 - what about XviD?

Cheers.

[killingspree]

hi and welcome to the forum

what resolution are you using or how large is video file??
usually you should not have a problem.

for a guide on vdub procedures see: http://doom9.org/virtualdub_procedures.htm

oh and i do not think that you can encode xvid with nandub.
you might want to give virtualdubmod a try though!

hope this helps
steVe

[ultimatebilly]

If my memory serves me right, then you can right-click onto the preview window in virtualdub/nandub/virtualdubmod and select half or quarter resolution...
Does this work with the preview also?
I can't check at the moment, I'm at work...

[2ndson]

Thanks for your input, guys.

The video file dimensions are 640x342 - I've been careful to keep to the "divisible by 16" rule.

I've tried and I can't right-click on the cropping filter window in either VDub or NDub (VDub version 1.4.13, ND v1.0rc2)

I have a nice DivX5Pro video and an mp3 audio track but now they're badly asynch - try as I might I can't adjust the mp3 to bring it back to the divx. I've got the process guide you suggested, though, and the "synch" app to try.

My NanDub audio compression options allow me a maximum mp3 compression of 56k 24,000 Hz stereo - the guide goes much
higher - do I need to get need more audio codecs?

[killingspree]

Originally posted by 2ndson

My NanDub audio compression options allow me a maximum mp3 compression of 56k 24,000 Hz stereo - the guide goes much
higher - do I need to get need more audio codecs?

56k is extremely low... you should be able to encode up to 320k ... perhaps you'll want to try downloading the radium mp3 codec: http://www.doom9.org/Soft21/Audio/ra-codec12.zip

steVe

[ultimatebilly]

I've tried and I can't right-click on the cropping filter window in either VDub or NDub (VDub version 1.4.13, ND v1.0rc2)

You could maybe try to change the resolution of your screen temporarily to 1024*768 or even higher, to see all of the video...

I have a nice DivX5Pro video and an mp3 audio track but now they're badly asynch - try as I might I can't adjust the mp3 to bring it back to the divx. I've got the process guide you suggested, though, and the "synch" app to try.

What exactly are you trying to do? Have you ripped the video and the audio and are trying to remux both?
There shouldn't normally be any need to manually adjust the sync of audio and video...
I don't know what process you used to rip the DVD and convert it to avi, but if you used the recommendend dvd2avi->avisynth->virtualdub(mod) way, then you should have ac3-files after the dvd2avi step, with the delay in their names...
It is very important that you assert this delay, either in Virtualdub or during audio-encoding (Besweet does that automatically)...

My NanDub audio compression options allow me a maximum mp3 compression of 56k 24,000 Hz stereo - the guide goes much higher
You seem to confuse the bitrate with the compression factor! 56k is the bitrate, that means that 56k has to be sufficient for one second of audio, and 24000 values! If you think about that for a second, you will understand that cannot sound good anymore... It is the worst setting you can apply to the audio...

I had written something about samplerates, but then my boss came in and I deleted most of it accidentially, but it is not that important...
Just don't use bitrates under 128kbit/s with mp3, the higher the better!
Don't use Nandub, VirtualDub or VirtualDubmod for the audio-compression, use Besweet!
It has presets which will make it very easy for you to compress your ac3 to mp3s...

Important: Nandub only works with divx 3.11, not with divx 4, 5, xvid and anything else!
Use Virtualdubmod instead!

I strongly suggest you read all the GordianKnot and Divx/Xvid Guides you can find on doom9s page, all of it is absolutely worth reading it!!

Hope I have helped you, if you can specify your problems a bit and tell what it is exactly you want to do, I will try to help as much as possible!

But please read the guides before, they will make the whole thing a lot easier for you!

Remember what the Intro of "Mortal Kombat III" on the SNES said: "There is no knowledge that is not Power!" :D

[2ndson]

Ok, here's my process:

Vid:
DVDDecrypter (used to be SmartRipper, but it seems to be a bit inconsistent lately)
DVD2AVI / VFAPI
VirtualDub

Audio:
VOB2AUDIO
some freeware WAV-mp3 converter (forget the name)
NanDub to mux

I've got the radium codec now so I'll see if that helps.

I've ripped the video and audio seperately into DivX5Pro video and mp3 audio respectively and, yes, I'm now trying to mux them together. It's close but just a bit out of synch; the audio's early. I don't know about having ac3 files or any delay details, but it sounds as if this is what I need so maybe my method needs tweaking. You mention avisynth and besweet, which I've not used yet.

I've got a lot of the guides from doom9 and digital digest - I refer to them all the time. There seem to be many different ways of getting similar results, so I guess I need to try as many of them as possible until I get results I like. If I could just shift my current mp3 file a bit "to the right", though, I'd be happy!

[ultimatebilly]

Well, then try the following:
Open dvd2avi, set all audio options to demux all tracks, format to select automatically, then create a project you can delete later, its just for audio extraction...
The resulting ac3-files in the projects folder will have delay -+something in their names...
Use Virtualdubmod or nandub (you can use it for direct stream copys, but use rather virtualdubmod), set video to direct stream copy, set audio to direct stream copy, open "interleaving" in the audio-menu, leave preload alone, change "interleave audio every" to 100 ms, and set "delay audio track by" to the value you obtained form dvd2avi...
That should do it...
(You say you need to shift the audio to the right, so the delay value will probably be positive).

Don't use vfapi, it only slows encoding down...
Read the GordianKnot-guides, it will give you an avs-file, its a script you can load directly into virtualdub(mod) (and do a lot of video-processing with it btw)...
Don't use vob2audio, i used this myself for a while, but it is redundant...
You can open ac3s in besweet directly, no need to convert to wav first...

There seem to be many different ways of getting similar results, so I guess I need to try as many of them as possible until I get results I like.

Thats true, but many guides/ways are outdated, and doom9s are updated everytime its necessary...

[killingspree]

to your muxing problem:
try avimuxgui instead...

to your method:
no offence but in my eyes it is a little outdated (:
after dvd2avi
either compose your avisynth script manually
or use gknot! (does your audio too)

for audio (if you decide not to use gknot):
use dvd2avi to demux the audio tracks
use besweet in connection with besweet gui to transcode dirctly from ac3 to mp3

avisynth is a frameserver like vfapi but much faster and stable. also you can configure it better and have access to many more filters. (see www.avisynth.org for details)
besweet will give you the best audio quality possible for mp3 (at least that is the opinion of quite a few forum members - including myself)

take the time and try those programs . it's worth it (:

steVe

[2ndson]

Great, thanks everyone. I'll get going with these and see how I get on.

["Outdated" - me? I nearly dropped my Rubic Cube... (; ]

[2ndson]

I've solved my problem - I've got a little program called "AVI Info" by Terabit Software from a French site (http://perso.wanadoo.fr/petit-ecolier/decalage_son.htm) which makes it child's-play to match DivX video with mp3 audio. I now have two nice movies ready to put onto CDR.:)

[2ndson]

I've solved my problem - I've got a little program called "AVI Info" by Terabit Software from a French site (http://perso.wanadoo.fr/petit-ecolier/decalage_son.htm) which makes it child's-play to match DivX video with mp3 audio. I now have two nice movies ready to put onto CDR.:)