Deinterlacing (FCP)...

PrimeMover · Post by **PrimeMover** » Thu May 17, 2007 4:55 pm

Okay, I uploaded my video, which was encoded as a 640x480 h.264 progressive mp4 file in FCP, and even though the video has gotten generally possitive comments, some people are complaining that it looks interlaced, but I'm confused because that couldn't be possible. I created a progressive-scan 640x480 sequence in FCP, imported the finished interlaced sequence into it, and then encoded it as a progressive mp4. The version that's uploaded doesn't include this extra step, but when viewing the two versions, I can't make out any difference between them, so I didn't bother, and I'm pretty picky about these sorta things.

Bottom line is, I spent a lot of time on this one, and I don't want any inconsistancies to detract from it. What am I doing, or not doing, that would cause for this.

Here it is:
http://www.animemusicvideos.org/members ... p?v=143828

Kariudo · Post by **Kariudo** » Thu May 17, 2007 5:37 pm

yeah, it's interlaced

see those nice horizontal lines everywhere? that's interlacing

just making your project settings "progressive" doesn't make interlaced footage progressive. I don't use a mac, so I can't really tell you what to do next.
somewhere along the line you're going to have to deinterlace by some method to get progressive footage.

usually I'd suggest using avisynth to deinterlace...but avisynth is only for windows.
the closest thing I've seen to avisynth for mac is mpeg streamclip
did a quick search, which turned up shazzy's mac guide

PrimeMover · Post by **PrimeMover** » Thu May 17, 2007 7:20 pm

No need to explain, I've dealt with interlacing for years, as a commercial TV producer. But I'm a little more used to Premiere Pro than FCP. I'm liking FCP a lot better (although Premiere Pro does have it's charm), but since FCP has a few different deinterlacing options, I was unsure of which ones worked, and what they did.

I've fixed it, though, in FCP, it comes in the form of a de-interlace filter plugin (where as it's a "field options..." setting in Premiere Pro). I took that exact snippet that you used, which was a good choice, since it has a lot of fast motion, and it worked like a charm. I'll have the full de-interlaced version up sometime this evening.

YouTube · Post by **Kionon** » Fri May 18, 2007 4:34 am

Cleaner XL and DiVA can both deinterlace.

FCP does have a deinterlacing feature, but I am, admittedly, still figuring out how to use it myself. It is neither friendly nor intuitive.

Shazzy · Post by **Shazzy** » Sat May 19, 2007 8:00 pm

FCP's deinterlacing feature really does not work with anime. It's designed for DV footage captured from an actual camera which has a standard interlacing pattern. Most anime nowadays combines progressive and interlaced footage, or changes interlacing patterns at random points in the episode.

Your best bet is to deinterlace your footage before you import it into FCP. You can do this through

Cleaner 6 or 6.5
MPEG Streamclip
DiVA

I don't recommend DiVA as it was last updated 4 years ago. MPEG Streamclip is free but its deinterlacing is very basic (just like DiVA's). Cleaner is much better, but still leaves deinterlacing artifacts on most footage, and it's definitely not free.

If you want really clean deinterlacing you're going to have to run your footage through AviSynth on Windows before you import into FCP. Here's my workflow for that process:

Rip footage using MacTheRipper onto the Mac
Demux ripped VOBs to M2Vs using MPEG Streamclip
Transfer footage from Mac to the PC using an ethernet connection
Run footage through AviSynth deinterlacing script
Transfer deinterlaced footage back to the Mac using an ethernet connection
Import into FCP

If you don't know how to network your PC and Mac together using an ethernet cable, instructions are here.