green line in video

[OmegaMaster]

hi!

i get a green line at the bottom of my encoded video through the whole movie. what's wrong? i used xvid and vdmod for encoding it. i encoded 2-passes. my enabled settings are: AS@5L, mpeg, qp, gmc, b-vobs: 2, 1.5, 1, packed bitstream, closev gob; msp: 6-uh, vhq: 4-ws, use cm, fdr: 0, m i-f i: 300, quantization: 1, 31 each, trellis; fourCC: xvid.
i have two examples: frame1 (http://www.thomastaucher.at.tt/ic1.png) frame2 (http://www.thomastaucher.at.tt/ic2.png)

cu thomas

[JimiK]

Have you checked in VDub(mod) if you have this green line maybe already in your source? Then it could be a problem with your avisynth script (if you used it. Maybe cropping, resolution...).
Best regards,
JimiK

[Sharktooth]

Uhm... is the source PAL/Interlaced?

[OmegaMaster]

the green line isnt in the source. but i have checked all the settings and logs now, and i guess it the green line could be 'cause of deinterlacing, although the source is progressiv pal. i'll try it again and post if the deinterlacing was the issues.

[Sharktooth]

a green line at the botton of the video usually indicates that there's something wrong in the deinterlacing process.
however if the source is progressive there is no need to deinterlace.
make sure you're not deinterlacing a progressive source.

[OmegaMaster]

i encoded it with the proper settings and all went fine. thx for your help. it was my mistake, things were getting a little bit disturbed, now all is fine. so it was the deinterlacing.
cu thomas

[Affar]

Hi

if you use crop and the output resolution after this operatin is not mod 16, much filters in avisynth produced strange lines (vertical or horizontal).

Seeya ;)

[Sharktooth]

Originally posted by Affar
if you use crop and the output resolution after this operatin is not mod 16, much filters in avisynth produced strange lines (vertical or horizontal).
Thats true, but the example pics showed above are clearly deinterlace issues (sometimes related to mod 16 too...).

[Blight]

Green line can also be an issue with the Nero MPEG4 Decoder, it's not handling some sources properly.

[Arcon]

Originally posted by Sharktooth
a green line at the botton of the video usually indicates that there's something wrong in the deinterlacing process.
anybody knows what's wrong in this case? i've got some material with 29,97 fps that i want to deinterlace without ivtc'ing and all 3 different deinterlacers i've tried give me this green line on the bottom (without them its not there). so what is the problem that causes this? the resolution?

i use crop(14,2,688,474) in this case and want to use e.g. TomsMoComp(1,5,1) after that.

EDIT: found it. seems the cropping of 6 pixel-lines on the vertical axis did cause the problem. croping 4 or 8 lines works without a problem.

[Andrey]

All such a lines are avisync problems. In your case the resolution 688 - 14 = 674 is not a mod 4, so *green line* will appear.
Very old mod 4 bug, search the forum - it is posted 100 times at least...

[Sharktooth]

Originally posted by Sharktooth
Thats true, but the example pics showed above are clearly deinterlace issues (sometimes related to mod 16 too...).