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Group:  English: Entertainment » microsoft.public.windowsmedia.encoder
Thread: no video except for High Definition quality capture

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no video except for High Definition quality capture
FabianN 12/24/2008 7:09:03 PM
I'm trying to get the media encoder to stream a feed from a USB webcam (MS
Lifecam VX-5000).
As of right now I'm just trying to get the software to capture the video.
Whether I'm streaming the video or recourding it as a file onto the hard
drive, I am able to capture sound just fine. No issues there.
But for video, I can only capture video when I choose to "High Definition
Quality Video (CBR)" in the compression tab under proporties.
If I pick any other kind of video setting, the recourded file does not have
any video, and in the preview box, where it should display the video its
instead black and says "Not Supported"

I've reinstalled the program, I've had the DivX bundle installed, and I've
had the K-Lite Mega Codec Pack.
With either codec options, installed or not, did not change anything.

The webcam obviously works, or else I couldn't get video even using the High
Def setting. But the High Def setting is far too big to stream video.

Does anyone have any clue as to what could be causing this?
Re: no video except for High Definition quality capture
"Neil Smith [MVP Digital Media]" <neil[ at ]nospam.com> 12/28/2008 10:40:46 PM
My guess is you're going through the Wizard steps, then picking "File
Archive -> Stream from a web server (progressive download)" which
would result in the High definition quality (CBR) selected by default
in the quality dropdown.

There are 2 things about this approach :

(1) Streaming from a web server is *not* going to get you a live feed
broadcast over the internet - the option there is to record and encode
to a file, which you'd then have to load onto the web server (i.e.
this will not be a realtime feed)

(2) The default settings in the Encoder wizard aren'y terrible
configurable.

What you should do is cancel out of the wizard.

Hit Properties, then go to the Sources tab, select "Devices" and your
VX-5000 in both sections (assuming you want to also capture audio from
the device). Click Configure... video button and set the camera to
approximately 320x240 which is often one of the capture settings

Not all cameras have source size selection - it depends on the
manfacturer - but if you can set it on the camera driver, the Encoder
will subsequently have less work to do (and less data transfer to
handle) in order to resize the video while encoding.

In the LifeCam software, you *can* set the capture size of the camera,
from the amorphous (odd shaped) rectangle-blob with 2 arrows, top
right in the lifecam software.

On the output tab of windows media encoder, I guess you may want file
archive (so choose only Archive to file... and select a filename)

On the Compression tab, with 320x240 video input, you should have a
wide range of selections. Best initially to choose CBR for video and
audio.

PS - installing DivX and K-Lite is likely only to make your system
fail faster - KLite in particular is somewhat diseased. In both cases,
they won't help because the Lifecam software, and windows media
encoder don't need or use those codecs - they use WMV codec, which is
native to media player.

HTH
Cheers - Neil

On Wed, 24 Dec 2008 11:09:03 -0800, FabianN
<FabianN[ at ]discussions.microsoft.com> wrote:

[Quoted Text]
>I'm trying to get the media encoder to stream a feed from a USB webcam (MS
>Lifecam VX-5000).
>As of right now I'm just trying to get the software to capture the video.
>Whether I'm streaming the video or recourding it as a file onto the hard
>drive, I am able to capture sound just fine. No issues there.
>But for video, I can only capture video when I choose to "High Definition
>Quality Video (CBR)" in the compression tab under proporties.
>If I pick any other kind of video setting, the recourded file does not have
>any video, and in the preview box, where it should display the video its
>instead black and says "Not Supported"
>
>I've reinstalled the program, I've had the DivX bundle installed, and I've
>had the K-Lite Mega Codec Pack.
>With either codec options, installed or not, did not change anything.
>
>The webcam obviously works, or else I couldn't get video even using the High
>Def setting. But the High Def setting is far too big to stream video.
>
>Does anyone have any clue as to what could be causing this?
------------------------------------------------
Digital Media MVP : 2004-2008
http://mvp.support.microsoft.com/mvpfaqs

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