[Pythonmac-SIG] Extracting frames from Quicktime movies?

[Bob Ippolito]

On Feb 19, 2004, at 4:15 AM, Dinu Gherman wrote:

> Jack Jansen:
>
>> Jack steps out of Guido's time machine, and points Dinu at
>> plat-mac/videoreader.py in any 2.3 distribution.
>
> Heck... After sniffing into it I get basically this show-stopper
> code (used in videoreader.py):
>
>   >>> path = "mymovie.mov"
>   >>> from Carbon import QuickTime
>   >>> fd = Qt.OpenMovieFile(path, 0)Traceback (most recent call last):
>     File "<stdin>", line 1, in ?
>   MacOS.Error: (-2020, 'movieToolboxUninitialized')
>
> I'm using a vanilla Python 2.3.3 configure/make build. Is it
> a framework build that would help?

You're going to need to read and understand the QuickTime C API.  Apple 
has lots of examples, but I think you need to download the QuickTime 
SDK separately from Xcode to get them.  bgen wrappers don't do much for 
you above and beyond that, and none of this stuff has specific 
documentation for Python.

In any case, you need Qt.EnterMovies() to happen before you call into 
the QuickTime API.  You might end up needing to use a framework build 
(or at least something similarly bundleriffic) at some point, but that 
isn't your problem (yet).

-bob
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