[AG-TECH] Codec Options and Capture device

[Douglas Kosovic]

Douglas Baggett wrote:
> I noticed that depending on if you choose WDM Image capture vs the 
> Webcam capture device, different codecs are available in VIC (the beta 
> AG release..so I guess it's the Summover VIC). Specifically the WDM 
> Image capture allows JPEG and some others that don't show up if the 
> webcam capture device (in my case Quickcam Pro 4000 or 5000) is selected.
> 
> Does anybody know why this is the case?

Looking at the vic\video\grabber-win32DS.cpp file from the Sumover VIC 
source code, there is a comment:

//SV: XXX got rid of 422 format since there's no grabber returned for it 
and vic crashes


As JPEG requires YUV422, the JPEG option gets greyed out when the 
DirectShow code is used, but not with the separate Video for Windows code.


Cheers,
Doug