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[claudio]

Jim, Yaobing,

I was playing around with the RC version in the tv tuner screen, and I've seen an option under Options->Configure Tv for Deinterlace. When I select it, it tells me that I do not have the filter installed. I've checked in the dounload page but could not find it. Is it available somewhere?

I have an AIW 7500 on the machine where I can use MJ tvtuner. On another system I have the Hauppauge WinTv and I use Dscaler as a tv watching app. At the moment there is no comparison in terms of picture quality at full res between Dscaler, and the AIW MultimediaCenter or MJ: Dscaler is clearly superior.

I'd love to see a similar or better de-interlacer in MJ!

Claudio

[JimH]

Yaobing, our TV specialist, implemented it a month ago but it hasn't been tested.  You could ask him to e-mail it to you by writing him -- yaboing @ jriver.com.

Here's his description:

---

1. The Deinterlace filter is a DirectShow filter (a component that can be
used by any DirectShow program that find it useful). It is written by
DScaler people. I did not make any modification to it, just reported a few
bugs and Peter Gubanov of DScaler project fixed them.


Media Jukebox TV uses it by inserting the filter into the filter graph and
offer access to the property pages of it. It works for Hauppauge and some
ATI TV cards using WDM drivers. Does not work with VfW drivers.

Here is a quick description of DScaler:

http://www.dscaler.org/about.htm.

2. To use it in MJ, right-click in the video screen, and choose
Options->Deinterlace... A dialog appears and there are a few possiblities:

A. "Deinterlace filter is not available."
    "Please make sure the filter is installed on your system"

In this case the user should download the deinterlace filter (from JRiver
if we offer the download, or from dscaler.org - but the current binary
download from DScaler was built in Nov 2001, which is not updated enough to
work with MJ, so we should offer the latest binary that I built on our
site); and register it (using regsvr32.exe).

B.  "Deinterlace filter can not be connected. Possible causes: "
    "Your TV card does not support deinterlacing; "
    "Or you are using an incompatible video format. "
    "You may try choosing a different Color Space/Compression format"

In this case, the Deinterlace filter has been installed on the user machine
but it has not taken effect, due to incompatability of TV card (ATI
All-In-Wonder does not work for example - you need Brooktree based cards),
or incompatibility of  video format selected. In the latter case, the user
should right-click and choose Options->Video Preview Pin... (if not
available, try Options->Video Capture Pin...) and select a different format
for "Color Space / Compression". One probably should always select "YUY2"
over other formats.

C. "Deinterlace filter is connected."
   "Click Configure button to configure it"

The Configure button will be enabled and clicking it results in the display
of Deinterlace property pages, from which different deinterlacing algorithms
can be chosen, and hopefully one can see improvement of video quality. The
video quality change  may be very subtle and not noticible, and sometimes
the change may worsen the quality. You have to experiment with different
algorithms.

Yaobing

[claudio]

I've emailed Yaobing... but then I read more carefully your message and saw that the Dscaler filter does not support AIW (makes sense since they only support Brooktree in their code base ).. Bummer  

Claudio