Detailed Setup Explanation

[Mr_X]

Is there a FAQ or something that explains the "Detailed Setup" options in more detail? The manual doesn't explain what the difference is between the choices:

Rendering Filter: VMR on XP vs. Overlay?

What all the various Video Decoders are and which one is the best and why?

What the various MPEG modes are for DXVA, what "Bob" and "Weave" mean?

Love to know, even if the "default" setting are the best for my hardware, I'd like to understand the settings.

-Mr.X

[Mr_X]

Bump.

[salsbst]

Mr_X... here's a great place to start: http://www.avsforum.com/avs-vb/showt...threadid=31225 (AVS HTPC FAQ)

[malore]

From CinePlayer FAQ:
What is the VMR?_

The VMR (Video Mixing Renderer) is a new DirectShow component that debuts in Windows XP and will be included in future operating systems from Microsoft.__ The VMR now replaces the old "Overlay Mixer" as the new default video-rendering filter for DirectShow._ Due to operating system specific dependencies, the VMR is not currently available for any previous operating systems._ It is only available with Windows XP operating system.

The "Overlay Mixer" filter has traditionally been limited in the way it can display video, namely it is dependant on a physical hardware overlay in you display adapter._ In fact, The Overlay Mixer filter can only render to a hardware overlay._ The problem is that most display adapters only have one overlay device, and if that overlay is currently in use or unavailable, the Overlay Mixer will fail to operate.

The VMR eliminates this singular hardware dependency by allowing video to be rendered through your display adapter's 3D engine via Direct3D._ The video is basically decoded into a streaming texture that your display adapter then presents in the form of a series of triangles that can be rendered anywhere in video memory._ The VMR provides much needed flexibility for video rending in the PC._ This ability of using the display adapter's 3D engine allows for new effects for alpha blending video streams together, or allowing the video to be alpha blended with still images and/or text._ For DVD, the VMR under Windows XP provides a new alpha blending for Closed Caption text on the video window.


From an nvidia document:
The two most simple and common methods of de-interlacing are weave and bob. Weave is defined as
combining the two adjacent fields to generate a frame. While this works well on still images, it creates annoying
feathering (combing) artifacts with motion video. Bob is the process of zooming in on each field (enlarge by a
factor of two) in the vertical direction, displaying them successively, and shifting the bottom field by one scan line.
The bob method works well even with motion video, but suffers from a shimmering artifact due to a loss in picture
resolution. This is most obvious with text and stationary objects/logos overlayed on top of live video.

Do a forum search and you'll find posts about mpeg decoders. As far as I know the manual is the only source of information on the Detailed Setup, if you ask a specific question about a setting, you'll probably get an answer.