Can I de-interlace this one??

[eriksen76]

Hi

I just sat down with my girlfriend this evening and started watching a movie encoded with CCE 2.67 together with DVDRB 1.05. Then I saw that this one had lots of interlaced lines in the picture through the hole movie.

I know this happens very rarely, but I guess this one needed to be de-interlaced with decomb. (Correct me if I'm wrong)

Can I somehow do this (de-interlace) my outputtet DVD5. So I will not have to rip the whole thing to HDD again and doing the 6 passes (CCE) ??

/Eriksen76

[Rockas]

Well... you can re-encode the backup again, but it will loose quality and if you select the same number of passes it will take the same time :)

[writersblock29]

@eriksen76

What playback equipment did you use while noticing these artifacts? If it was a standard analog television set, then the artifacts you noticed are most probably not related to interlacing; analog sets display all images as interlaced.

If you were watching on a computer display (am I wrong in assuming you weren't, since you were with your girlfriend? Couches are fun for snuggling... ;) ) LED display, or even some makes of HDTVs, you may well be correct that the "lines" are interlace-related.

If you wish to attempt using decomb, then yeah, make sure it's checked in Rebuilder's options. Rebuilder won't use the plugin on material that it shouldn't, so any progressive content that may be on the disk will be treated correctly. It'll slow down the encode, though... so be warned.

The only way to deinterlace your copy without re-encoding is to use a hardware deinterlacer (check both your display -- if the display's not analog -- and your DVD player to see if they're availible) so that the streams are deinterlaced on-the-fly for viewing.

Have fun!

[eriksen76]

@eriksen76

What playback equipment did you use while noticing these artifacts? If it was a standard analog television set, then the artifacts you noticed are most probably not related to interlacing; analog sets display all images as interlaced.

If you were watching on a computer display (am I wrong in assuming you weren't, since you were with your girlfriend? Couches are fun for snuggling... ;) ) LED display, or even some makes of HDTVs, you may well be correct that the "lines" are interlace-related.

If you wish to attempt using decomb, then yeah, make sure it's checked in Rebuilder's options. Rebuilder won't use the plugin on material that it shouldn't, so any progressive content that may be on the disk will be treated correctly. It'll slow down the encode, though... so be warned.

The only way to deinterlace your copy without re-encoding is to use a hardware deinterlacer (check both your display -- if the display's not analog -- and your DVD player to see if they're availible) so that the streams are deinterlaced on-the-fly for viewing.

Have fun!

You're right we tried to watch it on a analog tv set. And it surely was those typical interlaced lines through the picture.

If I play it on my computer using my 17" flat screen monitor there are no lines through the picture. But I can see the "lines" if I scroll though the movie with dvd2avi.

Just tried encoding with CCE again using Decomb, but after the first pass I looked at the .m2v with dvd2avi and it was still "interlaced". Why is that???

The problematic encoded DVD5 reported progressive (zig zag) when running the vobs through bitrateviewer.

Any ideas?

/Eriksen76

[writersblock29]

@eriksen76

Qouted: "If I play it on my computer using my 17" flat screen monitor there are no lines through the picture. But I can see the "lines" if I scroll though the movie with dvd2avi."

Your software player probably has a deinterlacing filter installed and running, so you'll only see interlaced artifacts if the thresholds of that deinterlacer aren't right for the material. Most media players that I've ran use an adaptive deinterlacer; these work by deinterlacing areas of video that have motion in them, while leaving static areas pretty much alone in an attempt to leave the image with as much detail as possible while still removing zebra stripes. DVD2AVI uses no such filters, so it would make sense that you'll still see these artifacts while scrolling through the footage while using it.

Qouted: "Just tried encoding with CCE again using Decomb, but after the first pass I looked at the .m2v with dvd2avi and it was still "interlaced". Why is that???

The problematic encoded DVD5 reported progressive (zig zag) when running the vobs through bitrateviewer."

Bitrate viewer is reporting zig-zag progressive material on the same disk that you watched, and noticed the horizontal striping? Compare the copy to the original, and see what Bitrate viewer reports. It's sounding like the original disk wasn't encoded correctly to begin with. Rebuilder only loads the decomb plugin to footage that is flagged as interlaced, so if you've got interlaced footage that's flagged as progressive, decomb was never used. (Unless I'm mistaken -- and that's a definate possibility!)

Still, it's extremely odd that an analoge set revealed these sorts of artifacts at all. I'm not saying that it's all in your head; it's just strange. How's the original look on the same set?

[eriksen76]

Unfortunately the orignal dvd is at my friends place. Will get it back in a week or so.

I guess I will have to do some testing on that one.

Thanx for the fine explanations, and I think you're right about how the software players handle this movie.

/Eriksen76

[eriksen76]

Btw, could it be that if I had turned the option "disable interlaced" on before encoding the movie that it could caused the probs that I have with the backup?

/Eriksen76

[writersblock29]

@Eriksen76

I'd thought about that, but I doubt it would have messed anything up if it is, indeed, an interlaced stream flagged as progressive. The "disable interlaced" option is intended for disks that are the opposite: progressive streams flagged as interlaced (many PAL disks fall into this category). I don't know if setting this option will make Rebuilder analize the stream differently or not... hopefully, Jdobbs will stumble on this thread and be able to shed some light on this.

By the way... when you run the disk through DVD2AVI, what's the status window tell you about it? Under "Video Type," does it refer to the stream as FILM XX% (indicating progressive content), NTSC (assuming the disk is region 1), PAL (region 2)...? This will tell us a great deal about how to process this source.

[eriksen76]

@Eriksen76

I'd thought about that, but I doubt it would have messed anything up if it is, indeed, an interlaced stream flagged as progressive. The "disable interlaced" option is intended for disks that are the opposite: progressive streams flagged as interlaced (many PAL disks fall into this category). I don't know if setting this option will make Rebuilder analize the stream differently or not... hopefully, Jdobbs will stumble on this thread and be able to shed some light on this.

By the way... when you run the disk through DVD2AVI, what's the status window tell you about it? Under "Video Type," does it refer to the stream as FILM XX% (indicating progressive content), NTSC (assuming the disk is region 1), PAL (region 2)...? This will tell us a great deal about how to process this source.

My friend haven't returned the orginal dvd to me yet. The backup reports this when running it through DVD2AVI

Video Type: PAL
Frame Type: Progressive

/Eriksen76

[jdobbs]

My guess is that it looks that way on the original also. I see that on a lot of DVDs (the Simpsons Series Discs are a good example).... it really bugs me.

I think what happens is that they label the stream as progressive -- even though it is from an NTSC original stream -- then the DVD player trys to play it back progressive, but when the fields are displayed together, they represent two pictures that are not covering the same temporal period. Try forcing your player to not use progressive playback and see what happens.