[PD] (GEM) pix_movie & pix_add ?

[Andre Schmidt]

1000x thanks for the info, that helped !
momentarly i don't have any time to learn compiling it under windose :(
(making 2videos for a musicDVD, and only 1week time:)

has some1 compiled it for win?

btw. are there any performance differences between pix_movie and
pix_multiimage, lets say only to play a clip/images ?(i'm aware that
pix_multiimage takes more mem, but pix_movie has to decompres)

cheers
-andre

----- Original Message -----
From: "IOhannes m zmoelnig" <zmoelnig at iem.kug.ac.at>
To: "chris clepper" <cclepper at artic.edu>
Cc: "Andre Schmidt" <andre at vju.info>; <pd-list at iem.kug.ac.at>
Sent: Monday, April 08, 2002 11:19 AM
Subject: Re: [PD] (GEM) pix_movie & pix_add ?


> hi !
>
> below, i am referring to gem-0.87 (and no prior versions)
>
> chris clepper wrote:
> > i found this in the docs:
> >
> >
> > Can't process pix_movie data with pix objects
> >
> > --------------
> >
> > POSTED 4/24/99
> > --------------
> >
> > BUG: pix_movie sends the data immediately to OpenGL, so ther
> >                 is no chance to process the data.
> >
> > some geos don't render data from pix_movie correctly
> >
> >
> > cgc
>
> this is out of date.
> it is true for [pix_movie], BUT::
> with [pix_film] you *can* do image-processing !
>
> >>
> >
> >> i get "error: Gem: pix object cannot handle gray image" when sending
> >> pix_movie(s) to pix_add...
> >
> >> (same error with pix_mask too)
>
> there is the [pix_rgba] object that tries to convert all non
> rgba-formats to rgba which can then be processed by other objects, like
> pix_mask
>
>
> >> i'm using MJPEG coded videos (yes, they are in color. but i don't
> >> think this the problem)
>
> in fact, this is the problem, since normally movies will store data in
rgb.
> to avoid overhead, pix_movie (and pix_film) do *not* convert the data to
> rgba-space.
> almost all pix-objects have methods for rgba-images (which are "colour"
> in Gem) but some do not have methods for other colour-spaces, like "rgb"
> (which are called "gray" -- though obviously they are not)
>
> >> (win2k, pd0.35-17, gem 0.85)
>
> well, ok.
> what i said above applies to gem-0.87 only.
> try it.
> there are no precompiled binaries for windows right now, but the sources
> (which can be found somewhere at
> ftp://iem.kug.ac.at/pd/Externals/GEM/LINUX ) should definitely compile
> under both windows and linux.
>
> mfg.f.ar
> IOhannes
>
>
>
>
> >
> >>
> >
> >> cheers
> >
> >> -andre
> >
> >> ps. maybe i should use pix_multiimage instead...
> i do not think that this is a good solution for movies (when they are
> longer than some secs)
>
>
> >
> >
>
>
>
>