[mythtv-users] ATI All-in-Wonder
Patrick Reynolds
reynolds at cs.duke.edu
Fri Feb 20 16:00:59 EST 2004
On Fri, 20 Feb 2004, Bruce Markey wrote:
> AIW hardware works by writing video data directly into display
> memory rather than sending it out over the PCI bus. The "km"
> driver grabs data from the display while the image is on screen.
> This approach is worthless for any application other than the
> AVView demo from the GATOS site. MythTV can use the "bttv" driver
> but AIW requires "km" which no applications can use (xawtv et.al.
> can't do capture with "km" either). Quoting myself ;-):
Naive question: is it possible to make the AIW draw to an off-screen
buffer (still in video memory) and capture from there? Some cards do BLT
and font rendering in off-screen buffers; why not do TV there, too? Then
you could capture without a visible display.
I don't have an AIW card. I'm just intrigued by the bad design. :)
--Patrick
More information about the mythtv-users
mailing list