View Full Version : Deinterlacing
LB11
22nd June 2007, 07:10
Hi, I am currently trying to convert all my movies to x.264.
The problem I am having is that after encoding it looks like the video is not being deinterlaced properly. I never had this problem before. If I use FFDSHOW I can set that deinterlacer to correct it. I would however like to get it encoded without the problem. I have a few completed beforehand that are fine, so I know its possible. (I recently built a new system and since the fresh install of windows I am having this problem)
This also happens when I shrink a DVD with dvdshrink. The new encoded file will look the same.
CWR03
22nd June 2007, 08:32
As a rule, at least in my experience with Region 1 movie disks, they do not require deinterlacing. Doing so when it's not necessary can introduce problems.
LB11
22nd June 2007, 09:05
Thats what I'm saying. I do not want to deinterlace. Something is happening during encoding that is making it necessary to deinterlace.
foxyshadis
22nd June 2007, 14:04
Well, how are you converting them? It's vitally important to know how, since there's a million different ways. (If it's a more manual process, you probably need to check off an "IVTC" option somewhere, but tool like autogk, handbrake, and megui shouldn't need it.)
LB11
22nd June 2007, 20:29
Well, I was using straxrip. But I just tried to do everything manually last nite, and just previewing the file in dgindex shows the problem. So im not sure where to go from here. :confused:
LoRd_MuldeR
22nd June 2007, 21:31
Well, I was using straxrip. But I just tried to do everything manually last nite, and just previewing the file in dgindex shows the problem. So im not sure where to go from here. :confused:
If your input video appears interlaced (combing artifacts) in DGIndex, then it's either interlaced or telecined. This means before encoding you will have to deinterlace or inverse-telecine the video - always, no matter what codec you use! Another way to go would be to keep the video interlaced. In the latter case you would need to configure the codec accordingly (check the 'interlaced' option) and of course you are not allowed to resize interlaced video!
neuron2
22nd June 2007, 21:42
Your video may be field-blended due to standards conversion. Post a small VOB fragment and then we can tell you what you have. Or demux an M2V section using DGIndex and post that. Pick a section with a lot of movement.
LB11
22nd June 2007, 22:15
Thanks for the replies guys.
They are progressive files to start. dgindex even says so. It just appears interlaced.
Ill post a small file when I get home later tonight.
LoRd_MuldeR
22nd June 2007, 22:34
Thanks for the replies guys.
They are progressive files to start. dgindex even says so. It just appears interlaced.
Ill post a small file when I get home later tonight.
My guess: It's either 'field blended' or somebody made the fault to encode interlaced material as progressive...
neuron2
22nd June 2007, 23:39
They are progressive files to start. dgindex even says so. No it doesn't. It says that progressive encoding was used. That does not necessarily mean that the content is progressive. You would know that if you consulted DGIndex's users manual (section describing that field of the Info dialog). Waiting for your sample...
manono
23rd June 2007, 09:15
But he may be deciding it's interlaced by watching it with the Field Operation set to Honor Pulldown Flags. The answer may be as simple as setting it to Force Film. But, as you say, a sample will help.
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