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Re: iMovie and QC fx

Steve Christensen wrote: 
On Jan 31, 2007, at 3:03 PM, Lawson English wrote:

Steve Christensen wrote:

On Jan 31, 2007, at 8:40 AM, Lawson English wrote:

Is there a documented way to use QC to roll your own video FX for iMovie?

iMovie uses plug-ins to implements its various effect types. If you wanted to use QC inside iMovie, you'd have to write a C, C++ or Obj-C plug-in that would control the QC composition. I've never heard of a way to directly specify a QC composition in iMovie and have it "just work."

Thanks for the response, but I don't think it is quite accurate.

I stand by what I said. The only official way to create iMovie effects is via the iMovie SDK available on Apple's website.

What I was referring to is the necessity to use C/C/OBJ-C. Obviously, the compositions that iMovie comes bundled with work, and they load into GC just fine. I would think that using one as a template would allow for custom compositions, but I haven't tried it yet.
When I dragged copies of the GC filters out of the iMovie HD.app folder, I found consistent controls for the .qtz files showing up in GC and apparently a consistent hierarchy of macros (2 sub-macros were always present in the Effects_filters that I looked in). I just haven't figured out if these are special custom interface patches, or just a generic one with custom settings. Either way, it looks to be possible to "roll my own" QC filters for iMovie HD, but I was hoping that someone could give pointers as to how to proceed, preferably "official" pointers.

Apple added a few QC compositions directly into iMovie with the iMovie 6 release, but I don't believe that it looks for them anywhere but inside the application bundle. So far they haven't released any documentation on what's required to make a composition work within iMovie.


Understood. I was wondering about that, but couldn't find any documentation. Was wondering if there was a tech-note. Obviously not.

Hopefully, with the next release of iLfie, QC, etc., this won't be necessary, and a template for adding custom filters (at least) to iMovie will be provided.

Well, that would be an iMovie decision, not a QC one since existing compositions work just fine in the current iMovie release. At least the ones they created.

That's my point.


Just adding a home-grown .qtz file (without any attempt at providing the right interface) not only didn't work, but attempting to use it eventually crashed iMovie, so obviously there's a stability issue here. It would be kool if such filters could be tweaked to work with Final Cut express/pro, of course.

There may be very strict requirements on what is and isn't allowed, for whatever reason. Depending on what you were attempting, you just may have been playing outside their sandbox.

Almost certainly the case. I just wonder how many are for "safety's sake," and how many are marketing decisions. Can't have iMovie doing more than Final Cut, afterall.

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References: 
 >Re: Unable to Import QC Composition into iMovie or iDVD (From: Iain Anderson <email@hidden>)
 >iMovie and QC fx (From: Lawson English <email@hidden>)
 >Re: iMovie and QC fx (From: Steve Christensen <email@hidden>)
 >Re: iMovie and QC fx (From: Lawson English <email@hidden>)
 >Re: iMovie and QC fx (From: Steve Christensen <email@hidden>)



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