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Lower-third video distortion
Well back again…
I’m putting together a motorsports DVD and some of the footage supplied to me is on DVD. I captured that footage out of the DVD player, into DV camera via S-video and mono-audio, and Firewire’d into Premiere Pro 2.0
Footage looks “fine” despite its poor quality in areas, but I’m noticing a big problem when encoding to MPEG-2. The lower third, well, more like the lower 12th, of the video is distorted with a distinct section that appears to be using repeated frames or something.
Encoding settings are 4:3, MPEG-2, Video only, 720×480, Main Profile, Main Level, Lower Field, 29.97, CBR 5.0, and everything else I’ve never touched.
any help on this?
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3 Replies
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You are going from a compressed DVD, to analogue, to a compressed 5:1 DV, then again to a CBR 5. That video has been through a lot in just one transfer, and those repeated frames might just have been introduced by the last CBR encode. Have you tried just renaming the vobs to Mpeg2?
CBR and 5 MB/S don’t go together well if you want to keep some of the original quality. If you have to encode under 8MB/S, then use VBR. Use this calculator to get your exact requirements.
I would also try a small work area export where the lower third is, to make sure that the encoding rate is the issue here.
Cheers,
Vince
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Thanks for the input Vince. I figured the multiple steps of compression would lead to trouble. I think part of it is just the horrible DVD quality I was given as well. They burned it in an obvious long-play format and its already pixelated severely.
Anyway, I am able to skip the step of input to the DV camera and back out to the camera. I have a Turtle Beach Video Advantage card for analog input. What, if anything, can that save me compression-wise.
I’ll mess around with the VBR settings and see what I can get.
Thanks alot!
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Another thing I forgot to add in reference to my comment about their poor DVD footage quality, is the fact that I have done the method of capture I mentioned in the first post from some excellent DVD footage and the results were fine.
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