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View Full Version : Getting more files than I need


clodomiro
22nd April 2003, 21:52
Hi, I just started using G-knot, before I used Vidomi (I know, Iknow...) and I'm totally amazed by its quality and it's given me great results. But I would like to know:

1. I'm getting the file I want (mymovie.avi) but I'm also getting a video only file (mymovie_movie.avi) and the separated audio (2 mp3 files in this case). I know I can just erase them, but I have a small HD (13.6) and my avi is going to be 1300 mb + individual files (another 1300mb) with only 1.7 gigs free, what do you suggest?

2. Everything works fine if I use DVD Decrypter + DVD2AVI, but if I use SmartRipper 2.41 for ripping and .d2v creation I get out of sync audio in G-Knot, i.e. the avi is 6:05 min and audio is 6:20 (they both should be 6:05). Why do I want to use SmartRipper? well, for a ~2hour DVD I rip and get d2v in about 12-15 min with it, whereas DVD Decrypter takes 14-16 min plus 10-12 in DVD2AVI, and this last step seems to be very taxing on my 4 year old HD (it's never given me problems, but I'd like to keep it that way). Any idea what's going on with the SmartRipper step? I use it at its default settings, and I've noticed that when I load the d2v project it's recognized as 25 fps, which I change to 23.97 (it is a film) and with any of the two settings I get the audio problem.

Thanks in advance.

jggimi
22nd April 2003, 22:14
What do I suggest for a system with only 1.7GB free? Two suggestions: 1) Delete something, or 2) aquire another hard drive. You can "skinny" things down a little by only demuxing the audio track you need, so you don't end up with 2 or more .ac3 files (big) or 2 or more .mp3 files (smaller). In DVD2AVI, select Demux instead of Demux All Tracks, then select the track you're interested in.

The _movie file is the output of the Virtual Dub jobs -- it is your video. The .mp3 file -- well, one of them -- is your soundtrack. They are encoded separately, then muxed together (in a short job using Nandub).

SmartRipper and .d2v files -- The .d2v's created by DVD2AVI and SmartRipper are not compatible. By searching (hint, hint) I found this thread (http://forum.doom9.org/showthread.php?s=&threadid=13970&highlight=smartripper+d2v) which describes the sync issue, and points you to the online doc in the Gknot application where it says, in a nutshell, don't do this.

clodomiro
23rd April 2003, 07:35
Hmm... well I was looking for reasons, your link only says there are sync issues, not why. I found out that the d2v from SmartRipper is always read with incorrect time, fps, and PAL\NTSC. The problem is that even if I manually correct these settings, GKnot still creates an avi with the wrong fps (25 instead of 23.976) and hence the lost synch. I corrected that in Nandub, but I still have to put a small delay in the audio for it to sync.
I'd really like to know why Gknot doesn't use the fps I input.

A.Lanza

N_F
23rd April 2003, 09:11
Gordian Knot is in no position to make a change like that to the framerate. That little box where you changed it is mostly used for various calculations and some other minor things. In itself, it will not change the framerate (that's something that you can do in Avisynth, if you really feel you have to).

I don't know why the .d2v from Smartripper doesn't work, maybe neuron2 or someone else who knows the d2v structure well can tell you.

Smartripper itself is usually fine to use for ripping the files, but not for creating the d2v project. My suggestion? Unless you want to use something completely different from Gordian Knot/Avisynth, use DVD2AVI.

Edit: Yes, DVD2AVI is very taxing on the harddrive, specially if you're doing anything else at the same time. After all, it does have to read a 4-8 GB file in just some minutes... I don't know if you're in the habit of doing things at the same time while encoding, but if you are, make sure you don't do anything while DVD2AVI works.

clodomiro
23rd April 2003, 09:41
-Gordian Knot is in no position to make a change like that to the -framerate. That little box where you changed it is mostly used for -various calculations and some other minor things. In itself, it will not -change the framerate (that's something that you can do in Avisynth, if -you really feel you have to).

I see, thanks for the reply, I guess I have to choose where I lose more time, using DVD2AVI or resynching the avi. From what I read there's no hope in anything getting done to SmartRipper. I'll try to find out more about d2v. It's strange that the other program I used before (vidomi) had no problems with this, then again, it didn't even use the d2v, just the vob's, nevermind that last comment.

A.Lanza