> -----Alkuperäinen viesti-----
> Lähettäjä: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]Puolesta Michael Spall
> Lähetetty: Wednesday, January 15, 2003 4:22 PM
> Vastaanottaja: 'Video4linux (E-mail)'
> Aihe: BTTV mmap problems (still)
>
>
> I am still having problems with getting mmap to work in a system with a
> BT848 card.
>
> The current system works fine on my development system with a USB Webcam
> that only supports read(), but on my test system with a BT848 Capture card
> that only supports mmap, I'm having problems.
>
> My main problem is that the mmap doesn't seem to be working, it prints out
> the output line, but the screen remains black no matter what
> combination of
> resolutions and video sources I use. I've used XawTV to get an image from
> the camera, so I know it works so I assume that the problem is in my code
> somehwere, possibly with using the wrong buffers.
>
Have you tried to eliminate that SDL part and write to disk, for example?
This would narrow the problem.. I think.
Jonk
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