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afterdawn.com > forums > dvd±r discussion > dvd±r for newbies > interlanced pal mjpeg to interlanced pal dvd
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Interlanced PAL MJPEG to Interlanced PAL DVD
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kurbads
Newbie
_ 		23. June 2005 @ 00:42 _ Link to this message    Send private message to this user   
I have captured 576x768 video with Miro DC30 MJPEG capture card from analog tape. As I found out at http://biphome.spray.se/gunnart/video/ it is "50fps PAL video with half vertical resolution". Both fields are captured in one frame and then jpeged, which makes kind of zigzagy video.

Only recently I have become aware of this interlance issue. For untill now I blured the zigzags and encoded at unreasonably high bitrates to presererve quality. There are not very much information about it. If you enter words "interlanced PAL dvd" in Google search you face 39 results.

I have been asked to convert it to DVD. The best quality I can achieve is to discard second field and bicubic resize the first one.

But I have feeling that there exists an interlanced PAL DVD format. Is there a way to feed all 50 half res frames into CCE and create interlanced PAL DVD? Or encode two half res streams separately and then mux somehow? (CCE doesn't accept 576x288 video) Or maybe CCE will encode each field separately if original interlance is preserved? I would crop and resize only horizontaly.
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This message has been edited since posting. Last time this message was edited on 23. June 2005 @ 01:40
kurbads
Newbie
_ 		25. June 2005 @ 01:17 _ Link to this message    Send private message to this user   
I wrote a letter to Gunnar Thalin, look what he wrote:
Quote:
Yes, you can (and should) make an interlaced DVD. Most MPEG2 encoders should be able to do this. I just checked the CCE manual (although I've never actually used CCE myself), and it apparently encodes in interlaced format if it thinks it can encode the frames more efficiently that way (MPEG2 can mix Progressive frames and interlaced frames). So you can probably just encode your video clip without thinking about anything.
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