Exclusive DirectX mode - does it work? (2 Viewers)

[hansb]

In the general settings there is an option to enable DirectX exclusive mode
(to avoid tearing) but I have had some bad experience with this option.
The problem that I had was that the picture went very distorted (teared?)
when playing e.g. MPEG-4 sources. My first thought was that is was caused
by some bad codec or driver but when playing the same video source in
e.g. WMP10 or VLC the picture was perfect. Then I found this option and
it was enabled. The strange thing was that when i disabled it the picture
looks perfect and when having it enabled leaves tearing in the picture.
Is this expected? Anyone else noticed the same behavour? Should this
option be enabled or disabled? I would like to disable it since it helps
agains the problem I had but what else may go bad when this option
is not enabled?

 

[Marcusb]

That options works perfectly for most people, but for a few it needs to be turned off or strange things happen. It seems you are one of the few

 

[hansb]

If it works for so many people and only a few needs to turn it off, well then
someone should maybe be able to tell why that is!?
If this function enables v.sync (is that correct?) how does that effect the
h/w involved? I have a ATI Radeon X800GTO with the latest driver
installed. I am testing MP this in a non-htpc environment:

Area: Media Portal Program
MediaPortal Version: 0.2.0.4 (2006-08-11)
MediaPortal Skin: MCE
Windows Version: Windows XP (SP2)
.NET CLR Version: 2.0.50727
DirectX Version: 4.09.00.0904 (9.0c)
Audio Codec: -
Video Codec: -
CPU Type: Intel Pentium 4 - 3.40GHz
Memory: 1 GB
Motherboard: P5AD2-Premium (ASUSTeK Computer INC.)
TV Card Model: -
TV Card Type: -
TV Card Driver: -
Video Card Model: Gecube Radeon X800 Gto (256 MB)
Video Card Driver: -
Video Card Resolution: 1280x1024
Video Render Type: -
Audio Card Model: C-Media High Definition Audio Device
Audio Card Driver: -

 

[mPod]

What codec are you using for your MPEG-4 playback? Try getting latest ffdshow, this one is highly recommended for MP use: http://ffdshow-tryout.sourceforge.net

Maybe that helps already.

 

[hansb]

I am not using ffdshow, I use native XviD only.
It is the latest (offcial) version of the XviD codec.

 

[hansb]

..and besides. As I said before, it works fine outside MP, it is only when video is played from within MP there seems to be a problem. I can try ffdshow to see if it makes a difference.

 

[mPod]

Yes, I have read that WMP and VLC perform fine. VLC is the odd one here anyway, but WMP doesn't use DX exclusive mode. Not saying that it definately WILL solve your problem, but worth a try, as I had big trouble back those times I was using native codecs as well. Just a hint. I only use nVidia's purevideo codec as native one, all the rest is done using ffdshow here and I'd never go back.

 

[hansb]

Hmm. I tried ffdshow, first making sure it was choosen as the primary
codec by testing it standalone with WMP, and also that it was using libavcodec
instead of XviD. No luck The option must still be disabled for proper video
playback. I guess I can not try your setup (I have no purevideo card) and also
I believe that purevideo is for MPEG-2 playback only and not MPEG-4 or am
I wrong there? Anyway, thanks for your time. Maybe I just have to live with
this issue. Maybe it will work once my HTPC is assembled. It will be a completely
different H/W setup, with a purevideo GeForce 7300.

 

[mPod]

No, that's what I wanted to say... For MPEG-2 I use the purevideo codec, for all the rest ffdshow (passthrough for DD/DTS).
Sorry I can't help you further... Maybe someone else with a similar problem comes up with a better solution.

 

[hansb]

Excuse a stupid question but exactly how do I bypass DS/DTS in ffdshow?
Why should it be bypassed, to have a clean S/PDIF out signal?
Maybe a bit off topic, but hopefully you can explain how to do this anyhow.