Re: [GnomeMeeting-list] experience with the V4L1 compatibility of V4L2

[Guilhem Tardy <guilhem_tardy yahoo com>]

Hi,

As I found out yesterday, the palette is not an issue. The problem lies in the
VideoInputDevice::Open() function, which gets the device capabilities, sets the
height and width internal values to the maximum values  (i.e. 640x240), and
mutes the audio.

In effect, the WinNov video frame size is changed from whatever I set it to
before (e.g. 352x240x24, via the 'vctrl' utility) to 640x240x8. This is also
reflected by the 'vctrl' utility after the facts.

Guilhem.

--- Damien Sandras <dsandras seconix com> wrote:
> On Wed, Apr 17, 2002 at 03:45:25PM -0700, Guilhem Tardy wrote:
> > I found that the problem is actually not the palette, but a subversive
> change
> > of frame size (640x288) when you Open() a VideoInputDevice.
> > Then, the SetFrameColourConverter() calls SetFrameColour(), which calls
> > SetFrameSizeConverter(), and returns FALSE (640x288 is definitely
> > non-standard).
> > Do you know why VideoInputDevice::Open() resets the frame size?
> > 
> 
> I'm not sure I understand what you mean.
> PWLib only tries sizes CIF (352x288) and QCIF (176x144).


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