I have just used and tested that code at
http://onesadcookie.is-a-geek.net/svn/repos/QTValuePak
but the result is almost the same. The quality of the color is better but
when the movies are 2 on two simple QUADs, the animation slows down and the
G5 air-conditioning begins to run...
I supposed that a G5 dual 2GHz with 2GB RAM with "2" x 1GHz bus and a ATI
9800 Pro with 256 MB were enough to animate 2 movies 480 x 360 Sorenson
Video 3, 25 FPS. But it seems to be not so. And even with 1 movie only,
sometimes I note a very little strange trembling in the movie frame. It's
like it skips one frame. With my old code this never happened. My animation
runs at 60 FPS in sync with the video.
I ask to myself, am I really using both the 2 bus or should I use them
specifically writing some code?
If I really can run one movie only, and if I knew that, I should not have
bought a G5...
Best Regards
--
Lorenzo
email: email@hidden
> From: Keith Bauer <email@hidden>
> Date: Tue, 30 Nov 2004 00:36:08 +1300
> To: Lorenzo <email@hidden>
> Cc: email@hidden
> Subject: Re: 1 movie only on my ATI 9800?
>
>> I tried firstly to use GL_TEXTURE_2D, then GL_TEXTURE_RECTANGLE_EXT
>> which
>> seems to be even slower. Am I using a wrong method to write the movie
>> to the
>> video card? Any suggestion will be greatly appreciated. Thanks.
>
> Yeah, pretty much. There are a bunch of crucial optimizations you're
> not doing.
>
> Take a look at the Apple sample code for this, or here:
>
> http://onesadcookie.is-a-geek.net/svn/repos/QTValuePak
>
> I could run 640x480 movies at full framerate through OpenGL on a 733
> with a GeForce 2MX, so I'd be very surprised if you can't do what you
> need.
>
> -Keith
>
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