Hi
"Rene H. Larsen" a �crit :
>
> I've set up XFree86 4.0.1 to load the v4l module and I've compiled
> xawtv against X4 libraries so that xawtv will use the Xv extensions to
> perform YUV transformation on the graphics card, and stretching when
> in fullscreen mode. The former seems to work fine, as xawtv is
> clearly running in Xv mode since there are no flashes or delayed
> updates while moving or resizing the xawtv window.
>
> When I switch to fullscreen mode, however, I get a thick black border
> around the image, something I hoped could be avoided through the use
> of hardware scaling. My graphics card/driver combination (see notes
> below) does support hardware scaling, which I frequently use for
> fullscreen MPEG playback via SMPEG and SDL. Furthermore, debug output
> from xawtv agrees that hardware scaling is available, so why is it not
> used for fullscreen mode?
Maybe because xv can't put your WinTV in yuv capture mode.
You can recompile v4l_drv.o
with #define DEBUG(x) (x) in
xc/programs/Xserver/hw/xfree86/drivers/v4l/v4l.c
and look for something like
(II) v4l: init start
(II) v4l: /dev/video0 ok
(II) v4l: kernel driver supports yuv422.
(II) v4l: screen driver supports 2 yuv formats (0x87547b0)
(II) v4l: yuv format: YUY2
(II) v4l: matching format found, offscreen yuv enabled.
(II) v4l: yuv format: UYVY
in the startx log
didier
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