Problems with DivX 4.12

[dragoman]

Hi,

I've been encoding with SBC DivX 3.11 for a while, and my results have always been, if not good, then excellent.

I have been really excited by the promises made by the DivX 4.12 developers, and was sure that when I loaded up the codec, I would see faster encoding times and better results at lower bitrates.

As far as I can tell, just about everything they claim is true, but I have one problem.

Every encode I make with DivX 4.12 has these horizontal....call them "ghost lines". Sharp edges show a stairstep pattern where these lines go through it (best example, the sun in the beginning of Pearl Harbor).

Now these aren't really noticeable except to me, but they are really annoying. I would like to solve this problem because DivX 4 looks great.....

Any ideas? Before you ask, I don't have any screenshots or log files to post....

dragoman

[MxxCon]

search of ivtc and/or deinterlace

[dragoman]

I've tried every form of de-interlacing available in Gknot....Smart, Fast, etc...

IVTC doesn't get rid of it either.

dragoman

[aquaman]

This was really bad in the movie I just tried. Any ideas anyone?

[obelix]

Do you see the lines only when you switch to fullscreen? I noticed that sometimes when I switch to fullscreen the movie plays crappy until the next keyframe. Among other issues there are those jagged edges. Maybe you can post a screenshot.

[dragoman]

this only shows up when using DivX 4.12. The same source encoded with DivX 4.12 and DivX 3.11 shows different results, namely the horizontal lines I mentioned before.

This is why I don't think it's an interlacing issue, because if it was it would show up in both DivX 4.12 and 3.11

Any other ideas?

dragoman

[kheperi]

what resize filter did you use?

[dragoman]

The standard "ITU-R BT.601" resize filter.

Do you think unchecking this in Gordianknot would do the trick? I am not nearly that knowledgeable about this kind of thing, but would the resize filter make a difference like this in the image itself?

dragoman

[Acaila]

Sounds more like a directshow filter problem. Is the video overlay kicking in during playback?

[dragoman]

How can I tell if the video overlay "kicks in" during playback? How would this affect the video picture?

dragoman

[Acaila]

When you switch from full screen and back to windowed the first second or so the picture is a little darker with jagged edges, then the picture becomes smoother out. The smoothening is caused by the DS filter's post-processing. That's normal.

[b0b0b0b]

Try playing it with zoomplayer. THat player is awesome.

[dragoman]

@acaila - it's not just jagged edges though.

Let's see if I can explain. Imagine somebody lays a very thin line of clear tape across your movie screen, each about an inch apart from each other on vertical (these are horizontal lines).

Since they are clear, the only clear way to notice them is on sharp edges of objects on the screen. This makes it very distracting because your eye is constantly trying to identify what it can only see as a distortion.

I don't know why DivX 4.12 does this...I have had this problem using Flask, Xmpeg, and now Gordianknot.

I'm about to give up on the codec altogether, at least until a new release comes out.

dragoman

[vinetu]

@dragoman - Can You post a screen shot ?