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Landley

11/1/2004 11:08:00 PM

Has anyone got a work solution, VB.NET preferably though C# will do, of
image capture from an MPEG or AVI stream i.e. frame capture?

I was using a Windows Media Player solution, that was working 90% of the
time until about 2 months ago. I say 90% of the time, as just now and then
it would write a completely black image. I think the Media Player may have
been upgraded though I am not sure, which has made all images completely
black now.

Please help,

Landley




3 Answers

Bishoy Ghaly

11/1/2004 11:40:00 PM

0

the black image cause is due to hardware overlay, this means that the
drawing gets done in the hardware layer (via the driver directly) and this
causes to show black image.

I suggest you go through DirectShow, a part of DirectX - it can be used to
capture live frames or video and from files also and have many many powerful
capabilities.

good luck

--
Bishoy Ghaly
Senior Software Developer
http://www.d...


thomas wenning

11/2/2004 9:06:00 AM

0


"Bishoy Ghaly" <bishoy@dev2dev.org> schrieb im Newsbeitrag
news:udwnawGwEHA.3620@TK2MSFTNGP09.phx.gbl...
> the black image cause is due to hardware overlay, this means that the
> drawing gets done in the hardware layer (via the driver directly) and this
> causes to show black image.
>
> I suggest you go through DirectShow, a part of DirectX - it can be used to
> capture live frames or video and from files also and have many many
powerful
> capabilities.
>
> good luck
>
> --
> Bishoy Ghaly
> Senior Software Developer
> http://www.d...
>
>

Hi Landley,

here are some examples:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmplay10/mmp_sdk/windowsmediaplaye...
http://www.codeproject.com/cs/media/directs...
http://www.codeproject.com/cs/media/directxc...
http://www.codeproject.com/cs/media/DirXV...
http://www.codeproject.com/dotnet/wiascripting...
http://www.codeproject.com/csharp/Motion_Det...
http://www.c-sharpcorner.com/Code/2002/July/Multimedi...
http://www.codeproject.com/cs/media/aviFileW...

Commercial:
http://www.able-consulting.com/Products/Media...

Greeting

Thomas


Landley

11/2/2004 9:45:00 PM

0

Thanks.

I'll have a look through the links.

Landley


"thomas wenning" <nospam.thomas.wenning@gmx.de> wrote in message
news:eYrYmsLwEHA.2520@TK2MSFTNGP10.phx.gbl...
>
> "Bishoy Ghaly" <bishoy@dev2dev.org> schrieb im Newsbeitrag
> news:udwnawGwEHA.3620@TK2MSFTNGP09.phx.gbl...
> > the black image cause is due to hardware overlay, this means that the
> > drawing gets done in the hardware layer (via the driver directly) and
this
> > causes to show black image.
> >
> > I suggest you go through DirectShow, a part of DirectX - it can be used
to
> > capture live frames or video and from files also and have many many
> powerful
> > capabilities.
> >
> > good luck
> >
> > --
> > Bishoy Ghaly
> > Senior Software Developer
> > http://www.d...
> >
> >
>
> Hi Landley,
>
> here are some examples:
>
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmplay10/mmp_sdk/windowsmediaplaye...
> http://www.codeproject.com/cs/media/directs...
> http://www.codeproject.com/cs/media/directxc...
> http://www.codeproject.com/cs/media/DirXV...
> http://www.codeproject.com/dotnet/wiascripting...
> http://www.codeproject.com/csharp/Motion_Det...
> http://www.c-sharpcorner.com/Code/2002/July/Multimedi...
> http://www.codeproject.com/cs/media/aviFileW...
>
> Commercial:
> http://www.able-consulting.com/Products/Media...
>
> Greeting
>
> Thomas
>
>