[PD] GEM: forcing the use of Quicktime with pix_flim??

Matteo Sisti Sette matteosistisette at gmail.com
Thu Mar 18 19:18:15 CET 2010

By the way, I see a "Gem Man: QT init OK" message in the console with 
gem 0.92.1, so I guess there still _is_ some kind of support of 
QuickTime. Is there a way I can tell [pix_video] to use QuickTime rather 
than DirectShow (until I figure out what's wrong with DS)???

I used to do that by an [open file.mov 1( message, but on the current 
version it does not work (and is not even mentioned in the help file, 
though I don't know if it was in the older version).....

Or is the QT support meant for other things, and has it been eliminated 
in [pix_film]??

chris clepper escribió:
> On Windows, DirectShow is typically much, much faster than Quicktime 
> (which Apple abandoned a while back).  DirectShow takes advantage of 
> multiple cores/CPUs while Quicktime does not. 
> You can play a lot of Quicktime files using DS provided you have the 
> right codec installed.  I recommend the ffdshow package which covers all 
> of the MPEGs, JPEGs and so on. 
> http://ffdshow-tryout.sourceforge.net/
> On Wed, Mar 17, 2010 at 7:27 PM, Matteo Sisti Sette 
> <matteosistisette at gmail.com <mailto:matteosistisette at gmail.com>> wrote:
>     Hi,
>     With the latest release of Gem pix_film eats about ten or twenty
>     time more CPU than a precompiled binary compiled in August 2006 that
>     I downloaded time ago. And it eats so much cpu after opening a file
>     no matter whether it is playing it or not (I mean even after
>     disconnecting the gemhead from it). That didn't happen in the 2006
>     version
>     So I've realised that with the 2006 version of gem, it uses
>     QUICKTIME, while when I use the latest version it uses DIRECTSHOW.
>     Digging into the patch (which I wrote a couple of years ago for the
>     2006 version) I notice I opened files with a message like this:
>     [open myfile.mov 1(
>     That "1" is undocumented in the current help patches, but iirc I
>     used it in order to force [pix_film] to use quicktime rather than
>     directshow.
>     Was that feature removed?
>     If so, is there another way to force gem to use quicktime rather
>     directshow?
>     I'd like to test with quicktime to figure out whether this absurdly
>     huge cpu consumption is due to the use of DirectShow as opposed to
>     Quicktime, or if it is just a bug introduced in some recent version
>     of Gem.
>     thanks
>     m.
>     -- 
>     Matteo Sisti Sette
>     matteosistisette at gmail.com <mailto:matteosistisette at gmail.com>
>     http://www.matteosistisette.com
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Matteo Sisti Sette
matteosistisette at gmail.com

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