CCE2.66.01.06 - Why is >1 pass VBR with 3:2 detection WORSE?

[asifanwar]

I have been using CCE 2.66.01.04 with it's 3:2 pulldown detection feature on the ST:TNG discs with superb results, but of course one cannot do more than 1 pass VBR without the whole thing bailing out.
Admittedly, the quality was very good. (the 3:2 pulldown was virtually flawless across the board)

But this bug has now been fixed in CCE 2.66.01.06 and I thought I might as well do 2 pass VBR just in case.

The 3:2 pulldown has gotten all screwed up now! The motion is jerky and the images demonstrate interlacing artifacts, neither of which phenomena were present before.

Is there something inherently wrong with doing more than one pass? When I used my old method of using Decomb.dll, I would always do 3-pass and it worked OK, but I am afraid that CCE's 3:2 detection is in a class of it's own and I would like to be able to do 2 or 3 pass with it?

Any ideas? Anyone else have this experience?

[wmansir]

I also noticed this. I don't have enough time now to fully test it, but one encode I tried a few days ago to test multi-pass + Pulldown failed also. It was a buffy episode and which DVD2avi reports as ~80% film. Previous versions of CCE could pull it down to ~95% film. But with new verison it was only 10% film, which is horrible pulldown detection. I checked the pulldown settings in the CCE project and it looks like after a couple of minutes the encoder gave up and encoded the rest of the movie as video, with no pulldown.

I guess they fixed it so it doesn't cause an error, but it doesn't really work yet.

[asifanwar]

Yikes! - it's even worse than we thought, Captain!

You know how I said it looked terrible when I did 2-pass? Well I did the one-pass VBR method and it STILL looked terrible! It looked just as bad as the 2-pass did: all interlacy and jerky (is 'interlacy' a real word?!) I examined my mpv file in DVD2AVI and it didnt match the original VOB at all in terms of flipping between FILM/NTSC.....

SO I uninstalled 2.66.01.06 and reinstalled 2.66.01.01. I did the exact same one-pass VBR using the same settings etc and it came out perfect! When I examine the mpv, it matches the VOB perfectly!

The plot thickens.....

It seems they not only 'masked' over the bug, but screwed up the 3:2 pulldown detection altogether! Oh, well back to one-pass VBR for me using 2.66.01.01.

[tyee]

asifanwar

Can this CCE 3:2 pulldown be used on home shot DV video (to deinterlace it) or just telecined movies?

tyee

[asifanwar]

I have no experience with DV at all, so I couldnt honestly tell you. I am keen to try CCE in purely interlaced material, as it does a good job on the interlaced portions of TNG. Disc 7 has interlaced extras so I will try that and post my results.

If it can handle purely interlaced video as well as it handles telecined stuff then we are onto something really good here, cos it is already in a class of it's own with film quality.

AA

[wmansir]

CCE's pulldown detection will not deinterlace. Ideally, it will detect pure interlaced video as video and leave it alone, encoding it interlaced. If it detects a telecine pattern in the video it will IVTC it, encode as progressive, and add the correct pulldown flags to the stream. That is why it has so much potential for hybrid material, because it can switch between video and film content on the fly. So you don't have to choose between encoding it as one type or the other.

[quantum]

Has this problem been addressed in 2.66.01.07? I'm getting ready to backup my Simpsons Season 1 box set and would like to use this capability.

Also, am I right in assuming that 'Field Operation' in DVD2AVI should be 'none' instead of 'forced film' in order to let CCE handle the pulldown?

[asifanwar]

Then answer to your second question is 'yes' - DVD2AVI is set to NONE for Video.

Dont know about version .07 though....