Avisynth causing vertical lines in the video

[Fos]

I don't know why but Adobe premiere can't import well the mjpeg files. When i am working a lot of time premiere cashs and it's being unbearable.
So i import my mjpeg files using Avisynth.
My script is Avisource ("capture.avi").
But i have noticed some rare vertical bars in the video , wich are not present for example , if i import directly the mjpeg video file without using avisynth.
what i can do?

[gastorgrab]

I see horizontal bars, is that what you mean (parallel with the horizon)?

It looks like the source was interlaced at one time. Could the field order be incorrect for your source?

(it looks like field order incorrect B4 a resize took place......its a bit blurry)
.

[Fos]

ops , yes it is horizontal lines
"It looks like the source was interlaced at one time. Could the field order be incorrect for your source? "
No , i capture with my AIW using Pic video mjpeg 3 codec.
With CCE i don't have any problems.


Avisynth detects automatically the field order?

[gastorgrab]

Does the Pic video mjpeg use YUY2 colorspace?

To convert to Premiere compatibility i'm assuming your AviSynth script would contain ConvertToRGB at some point.

ConvertToRGB24(interlaced=true)

....if your source IS interlaced.
.

[Fos]

That worked !!

Thanks!!


I wonder beacuse using YUY2 source instead of RGB in Avisynth can create that bars if when i import directly the Mjpeg , it is YUY2 and in the conversion there's not bars

[mikiem]

For prem, AFAIK Picvid 3 encodes rgb mjpeg either in TV or PC color range depending on if the "Encode Normalized YUV" box is checked. Field order depends on capture device, & like most it will encode whatever it's given, despite the interlace check box which when checked can cause some editing software a bit of grief. I have seen it help to uncheck the box, even if checked when encoded. Might also try the force yuv on/off.

Are the pictures posted from video rendered by prem?

[Fos]

Did you could know why if i import from premiere mjpeg files , in the half of the monitor appears the video? Also , when i play it , the sounds is basically "click , click , click "

[Fos]

I have discovered that the cause that i can't import well mjpeg and huffyuv avi files was the newest version of Virtualdub.

I have tried to capture using the 1.5.8 version and now these avi files can be imported without any problem by Adobe premiere 6.0 and 6.5 .