[vtkusers] win32videosource drivers

[David Gobbi]

I spoke too soon, this class does handle chroma subsampling in the
horizontal direction.  Already it supports the UYVY format, so what
you need to do is find out how YUY2 differs from UYVY and then edit
vtkWin32VideoSource.cxx accordingly.  If you are able to get it to
work, it would be great if you could contribute a patch.

 - David


On Thu, Jun 16, 2011 at 7:10 AM, David Gobbi <david.gobbi at gmail.com> wrote:
> I checked and YUY2 is a 4:2:2 format, which means that the chroma
> is sampled at a lower resolution than the luma.  The vtkWin32VideoSource
> doesn't have any way to handle this sort of format.
>
> It has been more than ten years since I added any features to this
> class, maybe someone out there as an updated version that they
> could contribute to VTK?
>
>  - David
>
>
> On Thu, Jun 16, 2011 at 6:50 AM, khinwee <khinwee at yahoo.com> wrote:
>> Hi David,
>>
>> I have the same problem when i using Gadmei UTV 380 video grabber and
>> vtkwin32videosources. It says the compression format error due to YUY2.
>>
>> vtkWin32VideoSource (031D9580): DoVFWFormatCheck: video compression mode
>> 0x64737664 "YUY2": can't grab
>>
>> My video grabber only provide this option YUY2, any idea how can i resolve
>> this? Thank so much.
>>
>>
>> regards,
>>
>> khinwee
>