View Full Version : Deinterlace Filters?
2ZOD.COM
9th October 2003, 04:20
Are there any real-time deinterlace filters for capturing with iuVCR?
When I capture with HuffyUV my processor usage floats around 10-20%, so I probably have enough juice left to do some deinterlacing. This would be awesome, and would speed up the MPEG-2 encoding time for me later on.
Or if you know of any other good program that I can do this with, I'm all ears. I'm still a n00b at all this, so I would want to try more stuff and see what works.
Thanks in advance.
Owen
9th October 2003, 09:14
Try ffdshow. It has several different deinterlace filters.
It works well in VirtualVCR. Dont know about iuVCR.
Owen
midelic
9th October 2003, 21:20
Try here.
http://forum.doom9.org/showthread.php?s=&threadid=62897
2ZOD.COM
9th October 2003, 22:41
Alright, awesome, thanks.
homersapien
15th October 2003, 16:38
Originally posted by 2ZOD.COM
When I capture with HuffyUV my processor usage floats around 10-20%, so I probably have enough juice left to do some deinterlacing. This would be awesome, and would speed up the MPEG-2 encoding time for me later on.
If the final destination is MPEG2/DVD, then you can leave it interlaced. On-the-fly deinterlacing/filtering will never look as good as avisynth/virtualdub/etc.
2ZOD.COM
17th October 2003, 05:33
Originally posted by homersapien
If the final destination is MPEG2/DVD, then you can leave it interlaced. On-the-fly deinterlacing/filtering will never look as good as avisynth/virtualdub/etc.
Yeah, that makes sense. I really don't mind doing the deinterlacing that much in the encoding process, it would just speed it up a little. Thanks for the info anyway.
whoman421
18th October 2003, 01:41
If I capture interlaced video, compressing it with MP2 [using CCE] seems to compress the entire FRAME as apposed to just the field [meaning that the combing affects will cause drifting motion] as apposed to seperating the fields and compressing them individually. Is there any way to avoid the need to deinterlace by somehow ordering the fields correctly during the capture?
Even if this wasn't the case, and the compression was done only on the individual fields, how would this look on a progressive scan DVD? I could be wrong, but it seems that it would reconstruct the entire frame the way you captured it...with an incorrect field order, causing combing affects on your HDTV [this is assuming that you can to compress to MP2 with each field as it's own 'frame'].
As I said, these are all assumptions, and any clarification would be greatly appreciated!
Owen
18th October 2003, 16:02
"On-the-fly deinterlacing/filtering will never look as good as avisynth/virtualdub/etc."
This is simply untrue.
Have you ever USED ffdshow ????
Owen
bb
18th October 2003, 18:47
There's a deinterlace filter by alparysoft, too:
http://www.alparysoft.com
bb
vhelp
20th October 2003, 00:33
Hi whoman421,
Another suggestion to your de-interlace routine..
Try seting up your capture card to capture 60 fields instead of the
usual 30 fields. Your capture app will know (at least mine did, when
I tested it sometime ago) how to seporate the 30 fields and give you
60 fields instead.
In vdub, locate the bottom right box, where it usually defaults to
29.97 fps, and click it. There you should see the NTSC table/chic
and just select 59.94 fps for your captures.
This will give you a de-interlace output (I think)
Mind you, I'm basing this all on memory, and my brain is kind of full
at the moment :rolleyes:
Good luck,
-vhelp
whoman421
20th October 2003, 11:50
vhelp,
Thanks for your efforts to help.
Unfortunately, capturing the fields seperately doesn't make a difference, as I have tried every combination of capturing 30 frames...60fields...and converting each one back and forth using AVISYNTH. When you capture the fields, and recombine them using AVISYNTH, you still get the same interlaced results as if you captured them as full frames.
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