No problem. The whole point of my developing this was to create a system that "works"… so I will certainly try to remedy any part this not functioning as advertised. BTW - can your script "legally" be used to scale/deinterlace to 1080/25p or 1280x720/25p (or even 50p)? Especially a perfect 1280x720/25p for website-publishing would be great. Can I simply do it with OutputHeight and -Width? Well, that was my hope in adding the OutputWidth and OutputHeight parameters. It can never be "perfect" because there is no such thing as perfect deinterlacing (and the ones that approach perfection are so slow as to make them completely impractical -- especially for HD sources.) This should work fairly well, however: 720/50p from 1080/50i (or 60p from 60i) hd2sd(DeintMethod=1, OutputWidth=1280, OutputHeight=720) 720/25p from 1080/50i hd2sd(DeintMethod=1, OutputWidth=1280, OutputHeight=720, OutputFieldRate=25, SmoothTime=false) 720/30p from 1080/60i hd2sd(DeintMethod=1, OutputWidth=1280, OutputHeight=720, OutputFieldRate=30, SmoothTime=false) There are nearly endless variations you can do on these themes, but these are good for starters. So SmoothTime=false means it throws away half vertical resolution […] ? Well, not really. Whenever one framerate needs to be converted to another, hd2sd() gives you the choice of either blending frames (SmoothTime=true) or dropping frames (SmoothTime=false). For another, more graphic illustration of the 50i -> 25p process: 1080/50i -> 1080/50p -> 576/50p -> 576/25p When SmoothTime=true, each frame of the output will contain a 50% blend of 2 frames from the 50p stage. When SmoothTime=false, each frame of the output will contain a single frame from the 50p stage and discard the other So, providing that the deinterlacing does a good job in preserving spatial resolution, you will only be throwing away half of the temporal resolution when SmoothTime=false. Here is my advice on that front: If you have a lot of full-screen motion (zooms, pans, car races, football games) then you definitely want to set SmoothTime=false for 50i->25p conversions. If you mostly have stuff that contains minimal motion (such as static tripod shots of interviews, etc.) then SmoothTime=false can be a good choice. In either case, you'll probably get the most natural result by shooting a 1/50" shutter speed.
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