could removing gain trickler mess with

[nate klefsas]

could removing the gain trickler and all the reg keys mess with your final video resolution? I've been having problems getting a movie to play at the correct aspect ratio in media player. I even used auto gk to make a movie to see if that worked, dident. how I can tell is because I open the movie up in zoomplayer and it looks great, right size and is not bigger then it should be. Its just bothering me and I thought that maybe divx ad stuff might have something to do with it

[jggimi]

Not to my knowledge. If the codec doesn't see the right things about GAIN in the registry, you wouldn't be able to get an encode. (An error message window pops up if you're doing an encode in Vdub ... if Vdub is called by Gknot, you won't see it since Vdub is minimuzed. But the encoding will not proceed.

Based on your previous thread, Nate, I'd say there's still some confusion, miscommunication, or misunderstanding about avi video aspect ratio and resolution. What is the content, and what is the aspect ratio of that content? What resolution did you have for your encoded avi? What does GSpot tell you the resolution is?

[nate klefsas]

Its happened with vanilla sky and sixth sense, 0xE0 - Video - MPEG-2 / 720x480 (NTSC) / 16:9 / Letterboxed / LBA: 1 / , just like the sphere, I checked with gspot like you said and they are all the correct resolution. So maybe what I really want is to be able to force the size of the black bars to make the picture smaller every time. If I set the resolution the same for 2 different movies, i know they may be able to incode, one better then the other, but, is it possible if they both have the exact same resolution that the size of the black bars could be different. Maybe the problem is that the movies are made differently, cause no movie is the same as another. is their a .dll for avisynth to force the black bars to be a certain size? otherwise I'm just gonna stop posting about my problem, I'm just trying to get a little more quality out of my movies. try taking a movie and opening it in media player, look at,rember it, then open the same one in zoomplayer and set the aspect ratio to custom, some movies might not change, but others will, that is unless its just me doing something wrong, but I'me pretty sure I'm not.

[jggimi]

Nate, I'm not sure what you've been trying to accomplish. If you're creating AVI video from DVDs for display on a PC monitor; then using Gknot properly will automatically create an avi with the correct aspect ratio. At least, as close to correct as the modulo settings allow.

DVDs have a fixed DAR, of either 4:3 or 16:9. They also have a fixed resolution, of 720x480 for NTSC or 720x576 for PAL.

But films are shot in all sorts of aspect ratios. But it doesn't matter what the film's aspect ratio is, as long as it is transferred properly at either DAR. All you need to do is crop away all letterboxing, set the right DAR, and you will end up with a video stream very close to the aspect ratio of the transfer. It won't be exact, of course, due to modulo limitations, but it will be very close.

Of course, that's only true if you keep your fingers off the aspect ratio upon playback. AVIs normally have square pixels, to match the needs of a PC monitor, which also has square pixels.

The only time I've ever adjusted aspect ratio on playback was for AVI's that were not intended to have square pixels. For example, I have encoding MPEG-4s from DVD sources without doing any cropping or resizing. Special cases, of course, but I ended up with 720x480 video streams designed to be adjusted to either 16:9 or 4:3, depending upon the DAR of the sources. 720x480 is NTSC DVD resolution, but should not be played back without adjustment, as DVDs do not have square pixels. 720x480 in square pixels is 1.5:1, which is neither 16:9 (1.85:1) nor is it 4:3 (1.33:1).

You seem to be trying to make custom adjustments to square pixel avi files. I do not clearly understand why.

[nate klefsas]

I've been setting it to tv aspect ratio! is that bad, i figured since i was playing it threw my xbmp it was tv. would that mess everything up? I guess it would, i'm gonna try pc!right now!

[nate klefsas]

I'm gonna make a movie with pc in avi. I used tv before, mybe the was my prob, i'm useing xbmp and i guess that is a pc in a way. I will try it

[jggimi]

If you're thinking of "PC Scale" and "TV Scale" in DVD2AVI, these have to do with color, not aspect ratio.

[jggimi]

Here's a followup explanation. I'm going to try to explain this using your examples, Vanilla Sky and Sixth Sense. Unfortunately, I don't have either DVD, so I'm going only by what I've found at imdb.com.

According to imdb, they were both shot on 35mm film with an aspect ratio of 1.85:1, (which is also 16:9). And, according to the same database, both the R1 and R2 DVDs keep that aspect ratio 1.85:1. The database says that these are "anamorphic widescreen" which usually means a DAR of 16:9. Your IFO listing seems to confirm it.

Let's assume that both films have that 16:9 DAR. I don't know, of course, since I don't have the discs. The DAR in the IFO may show 16:9. If the DAR of the MPEG-2 stream matches that, Gknot will set the DAR to 16:9. If the DAR of the MPEG-2 stream was 4:3, you'll have to set it to 16:9 manually.

AVI videos use square pixels. I assume that no cropping was needed at all. There might have been a little bit of cropping to clean up the edges. But regardless, the resulting resolution should be close to 1.85:1 (16:9). It may never be exact, because the modulo values required by the colorspace, codec, and display adapters usually prevent exact aspect ratios. Using Gknot's default modulos of 32/16, you might end up with resolutions like 640x352 (1.82:1), 576x320 (1.8:1), 512x288 (1.78:1).

The amount of aspect error shown by Gknot takes three things into account. 1) the DAR you've set, 2) the size of the image in square pixels after cropping, and 3) whether or not the ITU standard box is checked or unchecked on the options page.

[nate klefsas]

maybe I am doing everything right, it's just that like you said above, I'm just trying to do custom adjustments and I shouldent be. If I want better video I shouldent try to make the video window smaller to get better quality, I should just put the movie on 2 cd's instead, obviously! I just hate stoping in the middle of a movie and putting another cd in, oh well, I'm just gonna put this to rest, the movies that i have been making do look ok and I know if I put it on 2 cd's it would be supurbe. thanks for the help.

[nate klefsas]

first, thanks for posting about the imdb, tryed it out and i think its gonna be very usefull in helping me to be absolutely sure that I am selecting the right imput aspect ratio, thanks. secondly, trying to make the viewing window smaller was not my answer, Instead of putting everything on one cd i should have just put it 2 cd, s much better idea, thanks for all your help and posts