Using BOB() with CCE?

[vincentw56]

I am trying to use the BOB() attribute with CCE to help with some badly telecined video. If I play the .avs file in media player, it has the "tearing" or interlaced lines. If I add the BOB() command to it, it plays just fine. The problem is that when I try to import the AVS file into CCE, it tells me the framerate is not supported. I have reencoded hundreds of movies, but have just had problems with a few of them. If I can get this figured out, then the last few movies will be done.

The script file I use is:

LoadPlugin("MPEG2Dec3dg.dll")
mpeg2source("DVD2AVIFILE.d2v")
Bob()
ConvertToYUY2()

The other movies I have done with the following and it works fine:

LoadPlugin("MPEG2Dec3dg.dll")
mpeg2source("DVD2AVIFILE.d2v")
ConvertToYUY2()

So what am I doing wrong? Thanks in advance.

Vincent

[scharfis_brain]

what do you expecting from trying to encode 59.94 FULL frames per second?

just leave the video as it is, if you only intend to use bob().

encode interlaced.

[vincentw56]

The problem is that when I encode it, it still has the "tearing" or interlaced lines. How do I get rid of that? Is what I am seeing because it is on the PC monitor? Thanks for the quick reply. This is something new that I have not seen before.

[Boulder]

You shouldn't see any comb artifacts when viewed on a TV. If you do, you probably have an incorrect field order. If you intend to view the material on your PC only, you should deinterlace or use a player which will do it while playing the clip.

[vincentw56]

Don't really plan on view these on the PC. I will burn one as a test to see how it works. I was hoping it was a simple answer like that. I might try to stream one through the Xbox to see how it looks before I burn it. Thanks for the help as always this board is the best place for video questions.

[vincentw56]

Alright, I encoded the video with CCE a made a DVD. The DVD played fine on the TV without the comb artifacts, but the video is jerky. I encoded it again changing the field order, but this made the video even more jerky. Any other suggestions? Thanks.

[Boulder]

What's your script and what settings did you use in CCE (also which version)?

[vincentw56]

The script is the same as above.

LoadPlugin("MPEG2Dec3dg.dll")
mpeg2source("DVD2AVIFILE.d2v")
ConvertToYUY2()

The CCE version is 2.66. AviSynth version is 2.51. I tried it with upper field checked on and checked off. I also tried it with the scanning order zigzag and alternate.

Nothing seems to work. I am currently trying some other settings, but nothing seems to work. I am also trying VirtualDub to see if it will work. Thanks.

[Boulder]

If you have interlaced material, you should use ConverttoYUY2(interlaced=true) for proper chroma upsampling.

What's the field order of the material? You can check that with this script:


LoadPlugin("MPEG2Dec3dg.dll")
mpeg2source("DVD2AVIFILE.d2v")
AssumeTFF()
SeparateFields()


Open it in VirtualDub and check if the motion is smooth or not. If it's smooth, you have TFF video, otherwise it's BFF.

[Mug Funky]

DVD is usually top first (by default, but it can be changed by the authors).

oh, and if you're going encoding interlaced, use alternate scan. you'll get much better compression that way, and hence your movie will look better for the same bitrate.

zigzag is for progressive, alternate is for interlaced - it basically prevents it encoding the artificial high frequencies interlace lines give.

[vincentw56]

It is TFF video. Not sure what to do next. Thanks.

[Boulder]

Could you post a small unprocessed sample, say, 25-50 frames with motion in it?