Hey Richard, On Tue, 2003-06-24 at 14:28, Richard Bottoms wrote: > >Sane hardware doesn't need that hack basically > Ah ha. So bigphysarea is just a fix for peculiarities of certain hardware > devices.
Yes. The DC10+ can use "virtual memory blocks" for MJPEG capture (so memory allocated in small pieces in random places in the physical RAM). That's how most capture stuff works. However, for raw capture, it needs physically contiguous memory. This means that it has to be one block *in the physical RAM*. The idea here is that normal users don't use this anyway, you only use this for overlay (display) on the hardware memory of the video card, and that actually *is* physically contiguous. So it makes sense, except that you want to use it differently then how the developers of the card intended it to be used. HTH, Ronald -- Ronald Bultje <[EMAIL PROTECTED]> -- video4linux-list mailing list Unsubscribe mailto:[EMAIL PROTECTED] https://www.redhat.com/mailman/listinfo/video4linux-list
