DirectShow Filter Problem?

[davidflam]

Hello,

I can't make DirectShow Recording application 1.01 work. I installed OptiTrack SDK 1.3.035 and OptiTrack DirectShow Filter 4.1 following README's instruction. All other requirements were also installed (MS VC 2005 Runtime and .NET 2.0 Runtime). Whenever I try to start the recording application with my FLEX:V100 camera connected to a usb port, windows shuts it down displaying an error report window. Detailed report of the error is shown bellow:

Nome de Evento de Problema: BEX
Nome do Aplicativo: OptiCapture.exe
Vers�o do Aplicativo: 1.0.2964.36737
Carimbo de Data/Hora do Aplicativo: 47b27102
Nome do M�dulo de Falhas: OptiTrack.ax
Vers�o do M�dulo de Falhas: 0.0.0.0
Carimbo de Data/Hora do M�dulo de Falhas: 47d82647
Deslocamento de Exce��o: 00007321
C�digo de Exce��o: c0000409
Dados de Exce��o: 00000000
Vers�o do sistema operacional: 6.0.6001.2.1.0.256.1
Identifica��o da Localidade: 1046
Informa��es Adicionais 1: d164
Informa��es Adicionais 2: 171a00082b7fe361bff6c430c2b3b71d
Informa��es Adicionais 3: dda5
Informa��es Adicionais 4: 7175fed02395a24e04eac8659f8080d4

I tried this on two different computers (one with windows vista and one with xp), and no luck, same "OptiTrack.ax" error. How can I solve it ?

Thanks in advance,

David Flam

[Birch]

Try downloading and installing Arena 1.4, it includes a newer version of the DirectShow filter which doesn't rely on the OptiTrack SDK. We are working on getting a new standalone version posted.

[davidflam]

It worked! Thank you =)

Is it possible to capture from more than one camera at the same time using DirectShow? I tried using it on a application that I'm developing and I just got black frames.

Regards,

David

[Birch]

For the present time the DirectShow filter only supports capturing from a single camera. In order to capture greyscale video from multiple cameras, it would be necessary to use the OptiTrack API directly (which does not provide video in a DirectShow compatible format).