Log in

View Full Version : Resultant XviD is a bit jerky when camera pans

Defenestration
17th February 2006, 23:32
After converting a few DVD's to XviD format using AutoGK, I have been impressed with the ease of AutoGK and the results. One slight problem I've noticed though is that the movie can become a bit jerky on some of the XviD's when the camera is panned across the scene. I'm thinking that it might be to do with different frame rates from the source and destination, which results in either some frames being dropped or some being added to the resultant XviD.

Any idea how I can make this jerky problem go away, or is it just an artifact of converting some DVD's (hence it cannot be removed) ?
CWR03
18th February 2006, 05:14
Not unless you upload a sample of a problematic encode. You can use BaDonGo.com to upload for free, then just paste the supplied link here so you won't have to wait for moderator approval.
Barns66
18th February 2006, 14:26
Defenestration you are correct. I also have the same problem. It most certainly is to do with FPS. I am guessing you have problems with encodes that are from 29.970 FPS source DVDs.
A problem i to experiance.
Annoying yes, but i don't think there is anything we can do about it as AGK is so automated. If the source is detected as "hybrid" from the comp test then you can "force IVTC" in the advanced settings which can help. If the source is detected as anything else i don't think there is anything we can do.
CWR03
18th February 2006, 21:37
If the source is detected as anything else i don't think there is anything we can do.
Sure there is: switch to the full Gordian Knot.
Barns66
19th February 2006, 02:59
Sure there is: switch to the full Gordian Knot.

Not an option for me as full GK results in undersized files on 2nd pass EVERY rip i attempt.
And no amount of reinstalling of software or XviD codec will fix it for me.
jggimi
19th February 2006, 06:18
As, Manono pointed out in http://forum.doom9.org/showthread.php?p=746734#post746734 in December, you seem to be improperly using GK's compression test.

In in the log in that thread, I note:Quality: 0.188 bits/(pixel*frame).
CompCheck3: 0.000 bits/(pixel*frame).
CompCheck5: 0.156 bits/(pixel*frame).. If I'm reading that correctly, you attempted to create a file with 120% of the b/p*f of your compression test. You will never reach your intended file size, since the test shows a maximum obtainable b/p*f of 0.156 at that resolution.

I know you've searched and read a lot; perhaps you've missed this sticky in the DivX Encoding forum; its applicable to XviD also: http://forum.doom9.org/showthread.php?t=24584

Best practice among the members seems to be aiming for a value in the 60-80% range (AutoGK aims for 75%). Doom9's guides recommend 40-60%, and those should provide acceptable results.
pojke
19th February 2006, 06:32
Sure there is: switch to the full Gordian Knot.I'm using the full Gordian Knot and have what I think is a similar problem (see thread (http://forum.doom9.org/showthread.php?t=107410))

What settings in GK could solve this issue?
CWR03
19th February 2006, 20:41
What settings in GK could solve this issue?
If it's a film, follow the detailed instructions on the Ripping tab of Gordian Knot.