AutoGK questions [Archive]

ToiletDuck

8th May 2004, 18:13

I was reading the FAQ about it and still had a couple small questions. I encoded 7 movies lastnight while I slept using its queue and quality to 100%. I was just wondering if autoGK automatically applies some filters to possibly soften the picture to get rid of blockiness? Does it automatically do 2pass encoding? And also from a guru's perspective if size isn't "too" much of an option how do you view its quality? On my media PC I am going back and taking all of the dvd folders full of .vobs and ripping them down. The file sizes are usually half the size so I have no complaining about 2-2.5gb encodes. Basically I'm doing it for the sole purpose of compatability with some plugins i'm using for myHTPC.
Thanks a bunch!
Duck:devil:

manono

8th May 2004, 20:25

Hi-

I was just wondering if autoGK automatically applies some filters to possibly soften the picture to get rid of blockiness?

There shouldn't be any blockiness with a straight quant 2 (quality=100%) encode, unless it's already in the source. Maybe it uses Undot, I can't remember.

Does it automatically do 2pass encoding?

In quality mode it's always 1-pass.

...if size isn't "too" much of an option how do you view its quality?

I don't understand the question. Are you asking if the 2-pass quality is any good? If so, it kind of depends on if you allow enough size for it. If you're trying to squeeze a movie that deserves 2 or 3 CDs into 1 CD, the then resolution goes way down, and the matrix and resizer get softer. So the result may be a bit blurry and soft.

ToiletDuck

9th May 2004, 02:04

hmm. I might be a little off on my questioning. I guess what I am asking is does a quality of 100% single pass beat the quality of a normal 2pass setup without a size limit? I know that the codecs can only go so high a bitrate before it is useless. I guess what I am saying is that even though the quality is 100% it is still single pass. It just writes it all at once. It doesn't read it. Decide how to best handle the frame. Then go and do that. But I could be way off. I've just ALWAYS used 2-pass I've never really bothered with single pass so i'm not up to date on it. I've always made good encodes so i've never really cared. However I am controlling my media pc via remote desktop through my LAN and the one step clicking is much easier since remote desktop doesn't output video. I just put a few in queue and let her go all day long.

ToiletDuck

9th May 2004, 03:03

Is there a glitch with the program to where it makes a video much bigger than the original .vob's? I am trying to do my Guns N Roses Dvd and the final output is like 4.8gb at 100%, where as most other movies are about 50%, and the total for the ripped folder is like 4.2.

manono

9th May 2004, 05:12

Hi-

You can't beat 1-pass quality encoding at 100%. However, as you've just learned, you can get huge file sizes if the DVD is not very compressible. And concert DVDs are usually difficult to compress.

For more information on that subject, please see my reply here:

http://forum.doom9.org/showthread.php?s=&threadid=75693

ToiletDuck

9th May 2004, 10:01

That is odd. You are absolutely right about DVDs for bands. They are hard to compress, some of them. I don't understand why at all though. They still at max have the same audio encoding of 6 channel surround and the video quality isn't anything special. Guns N Roses don't have any crazy graphics or anything. This Shakira, laugh at me and i'll kill you, DVD ripped very nice! almost 1/3rd the original size! Overall I would say that I save about 40% more HD space by going this route. Not to mention that I also can have them all play on a playlist AND my favorite part being I rip the previews so I have them playing while searching for a film to watch :cool:

PS. I watched an encode that I made along with the original DVD and I must say that the quality for half the size is absolutely AMAZING!!! Great job on the AutoGK! One nice feature to add though would be when decoding DTS surround to have a gain feature. However I know that options are something you are trying to stay away from.

Duck

len0x

9th May 2004, 10:47

subject is pretty much covered, so I just note this:

Originally posted by manono

Maybe it uses Undot, I can't remember.

yes, undot is always used.

daberti

12th May 2004, 16:28

Today I ripped American Pie #1 at 75% quality with a fixed H Width of 720 and 5.1 AC3 (AutoGK 1.19).
With Divx5.11 I scored a slightly less than 2GB size (bitrate of 2522kbps).
With Xvid 1RC4 I scored a 1,72GB size (bitrate of 2230kbps).
Does it mean Xvid requires less size at same quality level as Divx, or just that the two results are not comparable performancewise (as I think)?

BTW 4 Lenox:
Downloading 1.21 (from sec.and tert. mirrors as per your advice) and Hidden tools raises an "Access forbidden error" :(

len0x

12th May 2004, 18:29

This just mean that at the same quantizer you get different sizes for xvid and divx. "Quality" cannot be directly compared for the files with different sizes... Although this does imply to some extent that xvid is more compressable atm.

p.s. don't use any download managers - firts mirror will be protected as the other two soon as well.

daberti

12th May 2004, 23:15

Originally posted by len0x
This just mean that at the same quantizer you get different sizes for xvid and divx. "Quality" cannot be directly compared for the files with different sizes... Although this does imply to some extent that xvid is more compressable atm.

p.s. don't use any download managers - firts mirror will be protected as the other two soon as well.

I had the same thought: much more compressibility, thus less bandwidth at same quantizer level.

Downloading: the manager -GetRight- was the second choice of mine.
I tried with IE6SP1 before...with same results: access forbidden.

Last but not least: thanks Lenox for your precious tools.
I can argue the hard work behind the scene....my appreciation had been demonstrated last month ;) ;)

daberti

13th May 2004, 13:47

Problems with downloading 1.22 stood still.
I managed to get it from http://www.free-codecs.com/
Why don't you use BitTorrent approach also?
It could dramatically turn into servers' relief.....

Problem with 1.22: now I cannot choose 720 fixed width any longer. I.e.: from 704 the next step is 736...

Cheers

Taurus

13th May 2004, 14:26

@ daberti

Why don't you post bugs over at the Gordian Knot Development Forum
http://forum.doom9.org/forumdisplay.php?s=&forumid=70
It's the best place to get answers.
Join the AutoGK thread.Go to last page.
And maybe mention the 704 -> 720 resolution bug you discovered.
Just noticed it myself a few hours ago.

Cheers Taurus

len0x

13th May 2004, 14:48

I don't need servers relief (traffic is not a problem on my mirrors) - I'm trying to prevent direct linking to my files (see front page of www.autogk.net).

About 720 width problem - its now a feature unless I allow mod 16 width. For the moment mod 32 is the right way to go (you never get 720 after crop anyway, so width of 720 is resizing up which is better if its 736).

daberti

13th May 2004, 16:05

Originally posted by Taurus
@ daberti

Why don't you post bugs over at the Gordian Knot Development Forum
http://forum.doom9.org/forumdisplay.php?s=&forumid=70
It's the best place to get answers.
Join the AutoGK thread.Go to last page.
And maybe mention the 704 -> 720 resolution bug you discovered.
Just noticed it myself a few hours ago.

Cheers Taurus

Because my understanding had been that this was NOT a bug ;)
See above from Lenox

daberti

13th May 2004, 16:08

Originally posted by len0x
I don't need servers relief (traffic is not a problem on my mirrors) - I'm trying to prevent direct linking to my files (see front page of www.autogk.net).

About 720 width problem - its now a feature unless I allow mod 16 width. For the moment mod 32 is the right way to go (you never get 720 after crop anyway, so width of 720 is resizing up which is better if its 736).

But I still get an auth. denied on 2nd and 3rd mirrors, plain IE6SP1 and Opera 7.23.

Last question: do you see it a potential problem going over 720 (i.e. 736) on a standalone player?

Thanks

len0x

13th May 2004, 16:12

Originally posted by daberti
But I still get an auth. denied on 2nd and 3rd mirrors, plain IE6SP1 and Opera 7.23.

there must be something in your security settings (firewall or browser) that prevents referrer propagation.

Originally posted by daberti
Last question: do you see it a potential problem going over 720 (i.e. 736) on a standalone player?

I do. I don't think first generation players support that. Dunno about mediatek-based ones though... (search hardware forum for that)

ToiletDuck

13th May 2004, 18:38

does autoGK change the FPS to 23.976 everytime? I see it tries to detect it I was just wondering.

len0x

13th May 2004, 18:41

Originally posted by ToiletDuck
does autoGK change the FPS to 23.976 everytime? I see it tries to detect it I was just wondering.

only if there is more than 50% of film source in it

daberti

13th May 2004, 20:12

Originally posted by len0x
there must be something in your security settings (firewall or browser) that prevents referrer propagation.
.................
I do. I don't think first generation players support that. Dunno about mediatek-based ones though... (search hardware forum for that)

Download: Firewall settings changed.Now all goes smoothly :)

736 width: I'll check it myself tomorrow CET against my Philips DVD737.

Cheers

Taurus

13th May 2004, 20:39

@daberti

do you see it a potential problem going over 720 (i.e. 736) on a standalone player?

On my mediatek player it is possible to play 720+ resolutions,
but every now and than there's choppy playback at high bitrate spikes.
So I stuck with the -720 Settings.
And I dont know why AutoGk is restricted to the mod 32 voodoo.
On manual encodes in GKnot @720 I mostly use mod 16, never ran into trouble with XVID in this.
Maybe it is due for autoresizing.
I would like it (back?)