[GEM-dev] can't get pix_movie working (follow-up)

[Matteo.sistisette]

I tried gem-CVS20060412-NT-i686-bin and it works (renders the video and does
not show the error at every frame - only appears once).

However, the video is rendered at a lower quality than with version
gem-0.90.1-W32-i586-bin.

To give you an idea of what I mean with "lower quality", it looks like just
as if the video had a higher compression / lower bitrate.

It is definitely NOT a matter of "only solid colors". I don't know whether
it is a matter of decoding (since looks like higher compression) or of
scaling/interpolation (since it may be said that it looks more "pixelated")
- I am displaying a 720x576 (non interlaced) video on a 800x600 window.

I'm testing all on the same machine with the same patch and same video: I
only switch between gem versions.

On gem-0.90.1-W32-i586-bin, the video renders exactly as I can see it in the
Windows Media Player or on any other player: it renders "as it is" at its
full quality. Which is how it should be rendered. But that version of GEM is
very old and unstable: it sometimes crashes. That's why I'd like to be able
to use the latest version.

Any help will be greatly appreciated

Thanks a lot

Matteo Sisti Sette


--------- Original Message --------
Da: "Matteo.sistisette" <matteo.sistisette at email.it>
To: "gem-dev at iem.at" <gem-dev at iem.at>
Oggetto: [GEM-dev] can't get pix_movie working
Data: 14/06/07 13:12

Hi,

I am a user, not a developer, so I hope I'm not OT here, it is the only
gem-specific m/l I know of.

I am on Windows XP, on a Core Duo, with PD 0.40.1.

Up to yesterday, I was using GEM version 0.90, the one that is listed here
http://gem.iem.at/download.html as the current windows version, though it
dates back to 2004.
The attached patch worked perfectly, though GEM often crashed when closing
the patch, or opening it again, or when loading the video file the n-th time
with n>1. Which used to happen with just any patch using pix_movie.

Now I have installed version "gem-CVS20060914-W32-i686-bin", and the
attached patch doesn't work at all!

The main patch is test_onevideo_simple.pd, it uses the abstraction
onevideo.pd which is also attached.

It is supposed to load a video and play it looped at full window size.
It used to work fine on the old gem version.

Now, on the new gem version (nothing else changed), the rectangle appears
white without the video as a texture, and at every frame (when the frame
number is sent to the right inlet of pix_movie), the following error message
is printed on the main PD window:

"GL: numeración no válida" which means "GL: invalid numbering"

I suppose the message is generated by the operating system or some driver
since I am on a spanish machine.

The frame number that is input to the pix_movie is just correct (which is
obvious, since the patch is unchanged).


Any idea?

==== At startup, the following text is shown:

GEM: Graphics Environment for Multimedia
GEM: ver: 0.91-cvs
GEM: compiled: Sep 8 2006
GEM: maintained by IOhannes m zmoelnig
GEM: Authors : Mark Danks (original version on irix/windows)
GEM: Chris Clepper (macOS-X)
GEM: Daniel Heckenberg (windows)
GEM: James Tittle (macOS-X)
GEM: IOhannes m zmoelnig (linux/windows)
GEM: using SSE2 optimization
Gem Man: QT init OK


==== When loading the patch:

MAN::resetState entered
pix_film:: directshow support
handle 0 14F4330
filmQT created
pix_film:: quicktime support
handle 1 14F44E0
handle 2 14F4598
handle 3 14F4638
handle 4 14F46D0
handle 5 14F4770
handle 6 14F4818


==== And when [open(ing the video file:

pix_filmNEW : openMessCallback
closing 8 handles
close 7
close 6
close 5
close 4
close 3
close 2
close 1
close 0
closed
opening C:/membranaPDL/GEM/cuco06.avi with format 1908
trying handle 0: 14F4330
Trying DirectShow
pix_movieDS: xsize 720 ysize 576 csize 
got handle = 14F4330
GEM: pix_film: Loaded file: C:/membranaPDL/GEM/cuco06.avi with 13 frames
(720x576) at -1.000000 fps


I hope someone will help.

Thanks in advance
Matteo Sisti Sette 
 
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