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1080p vs 1080i Timeline
I have a client who wants to “future proof” his project by editing in HD. This project does NOT include any video media, just HD graphics and stills. However, his immediate delivery requirement is SD NTSC.
Is it better to bang this out on a 1080p 29.97 or 1080i timeline? 1080i works best for an SD downconvert, yes? He’s quite persistent about 1080p, though. How does Compressor or Episode handle interlacing progressive video? Any advice would greatly be appreciated. Thanks!
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3 Replies
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I would go with 1080p because I’ve been told it’s much easier to turn progressive video into interlaced video as opposed to turning interlaced video into progressive video.
Robert J. Grauert, Jr.
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[Jeff Scott] “I have a client who wants to “future proof” his project by editing in HD. This project does NOT include any video media, just HD graphics and stills. However, his immediate delivery requirement is SD NTSC.
Is it better to bang this out on a 1080p 29.97 or 1080i timeline?”
You’re focusing on the wrong question. What’s most important is the frame rate of your graphics. If it’s 60fps, then you need to edit on a 1080p60 sequence. Otherwise with 1080i you lose spatial quality (you’ll end up with 540 lines per frame) and with 1080p30 you’ll lose temporal quality (only 30fps instead of 60).
If the graphics are created at 30fps, then just use a 1080p30 sequence. There’s no advantage to using 1080i in that scenario. And no, it does not downconvert any better.
Sean
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[Rob Grauert] “I would go with 1080p because I’ve been told it’s much easier to turn progressive video into interlaced video as opposed to turning interlaced video into progressive video”
No really Robert. Any process where you have to create new information (pixels) is much more difficult that any process where you need to discharge information.
Progressive of interlaced would depend of the look you want and how you have make your graphics.
But to get the best SD movie I would edit in SD.
Rafael
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