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QQ
5th February 2003, 22:30
Greetings gang.

I'm not really sure if this is a right place to post this kind of question (don't mean any trouble to anyone!), but I guess I'll give it a shot.

My system is really low spec: Intel Celeron 300A, with Voodoo3 3000 (earlier RivaTNT, but I found earlier to be better), and decent amount of RAM. While it does play most of movies correctly, I'd still love to push it, for I can find movies which wont play.. get out of synch and stuff.

So I started fiddling with all the settings I could find, and then came across Video Renderer settings (right click on movie, properties, advanced, Video Renderer). And a bunch of settings there were, like:

* YUV flipping
* RGB flipping
* YUV overlays
* RGB overlays
* YUV offscreen
* RGB offscreen
* DDraw primary

and then some more in Performance tab.

Well, as I dont have all that much knowledge in low level video stuff, I just started experimenting. And found out, that at least for one particular rip, these settings gave the best performance:

display settings:
16 bit colors

ffdshow settings:
overlay mixer: UNCHECKED
output colorspace: YUY2 (ONLY)

video renderer properties:
YUY flipping: UNCHECKED
YUY overlays: CHECKED
YUY offscreen: UNCHECKED
DDraw primary: CHECKED
enable scan line checked: UNCHECKED
check for hardware overlay limitations: UNCHECKED
disable mode changes: UNCHECKED

By performance I mean the audio video was in synch, played smooth, visuals were OK, and I could easily switch between fullscreen/window modes (there were some other combos which played find, but screwed up when switching).

Now, I wonder if someone could enlighten me what do those settings actually do, and if there is an even better combo? I tried searching the net, but found myself in MSDN, reading a document which stated that "YUV flipping. (Can turn on or off.)" (doh!).

If this isnt a place to ask such questions, then I'd love to be given a suggestion where to proceed :)

Thanks!

theReal
7th February 2003, 09:25
I thought page flipping should be faster than overlay, but maybe I get something mixed up here (I only know from optimizing settings for 3DMark that you must activate "page flip" for better performance, if this option is available in the driver settings)