Re: [GnomeMeeting-list] Please Help: Aiptek Pencam 1.3

[Damien Sandras <dsandras seconix com>]

What happens from the output is the following :
- GM requires YUV420P for encoding and BGR24 to display on the screen
(hence there will always be a conversion from format X to BGR24 to
display)
- It will first ask to the driver if it supports YUV420P, for faster
encoding, if not, it will try other colour formats.

What I understand from the output and from your description is that the
driver accepts to work in YUV420P even if it is not able to do it, and
then sends green.

I really suggest you to contact the author and ask him to try GM. That
could of course be a bug in pwlib too, but he will be the one to be able
to determine that as he knows his driver.

Le ven 24/10/2003 à 17:18, Christian Burger a écrit :
> I'm sending the output of gnomemeeting, do you still confirm this is a driver 
> error? It looked ok to me, most of the operations worked and even the mode 
> BRG24 format was detected.
> I'll go through the documentation for pwlib to see if I can get something 
> else, please let me know what you think.
> Thanks again, 
> 
> Christian Burger
> 
> 2003/10/24 11:33:47.098	  0:06.251	           gnomemeeting	gnomemeeting	
> Version 0.98.5 by  on Unix Linux (2.4.22-i686) at 2003/10/24 11:33:47.106
> 2003/10/24 11:33:48.379	  0:07.532	GMVideoGrabber:42215008	
> PVideoInputDevice::Open: Found driver hints: Intel PC Pro Camera uses the 
> spca50x driver
> 2003/10/24 11:33:48.386	  0:07.539	GMVideoGrabber:42215008	
> PVideoInputDevice::Open: format: 4
> 2003/10/24 11:33:48.411	  0:07.563	GMVideoGrabber:42215008	PVideoInputDevice:	 
> GetFrameSizeLimits. 160x120 -- 640x480
> 2003/10/24 11:33:49.501	  0:08.653	GMVideoGrabber:42215008	PVideoInputDevice:	 
> GetFrameSizeLimits. 160x120 -- 640x480
> 2003/10/24 11:33:49.582	  0:08.735	GMVideoGrabber:42215008	PVidDev	
> SetColourFormatConverter succeeded for YUV420P and device using YUV420P
> 2003/10/24 11:33:49.589	  0:08.741	GMVideoGrabber:42215008	PVideoInputDevice:	 
> GetFrameSizeLimits. 160x120 -- 640x480
> 2003/10/24 11:33:49.597	  0:08.749	GMVideoGrabber:42215008	PVidDev	
> SetFrameSize to 352x288
> 2003/10/24 11:33:49.632	  0:08.785	GMVideoGrabber:42215008	PVideoInputDevice	 
> VerifyHardwareFrameSize Size mismatch.
> 2003/10/24 11:33:49.636	  0:08.789	GMVideoGrabber:42215008	PVideoInputDevice	 
> SetFrameSize failed for 352x288
> 2003/10/24 11:33:49.646	  0:08.799	GMVideoGrabber:42215008	
> VerifyHardwareFrameSize failed.
> 2003/10/24 11:33:49.656	  0:08.809	GMVideoGrabber:42215008	PVidDev	Colour 
> converter created for 352x288
> 2003/10/24 11:33:49.658	  0:08.811	GMVideoGrabber:42215008	PVideoInputDevice:	 
> GetFrameSizeLimits. 160x120 -- 640x480
> 2003/10/24 11:33:49.670	  0:08.823	GMVideoGrabber:42215008	PVidDev	
> SetFrameSize to 320x240
> 2003/10/24 11:33:50.809	  0:09.961	GMVideoGrabber:42215008	PVidDev	
> SetColourFormatConverter succeeded for YUV420P and device using BGR24
> 2003/10/24 11:33:59.101	  0:18.253	           H323 Cleaner	H323	Cleaning up 
> connections
> 2003/10/24 11:34:00.867	  0:20.019	           gnomemeeting	H323	Removing 
> listener Listener[ip$*:1720]
> 2003/10/24 11:34:00.966	  0:20.119	           gnomemeeting	PWLib	Forcing 
> termination of thread 0x8262c78
> 2003/10/24 11:34:00.969	  0:20.122	           H323 Cleaner	H323	Cleaning up 
> connections
> 2003/10/24 11:34:00.970	  0:20.122	           H323 Cleaner	H323	Stopped 
> cleaner thread
> 2003/10/24 11:34:00.988	  0:20.141	           gnomemeeting	H323	Cleaning up 
> connections
> 2003/10/24 11:34:00.989	  0:20.142	           gnomemeeting	H323	Deleted 
> endpoint.
> 
> On October 24, 2003 11:07 am, Damien Sandras wrote:
> > Le ven 24/10/2003 à 14:59, Christian Burger a écrit :
> > > I've installed the module from mxhaard.free.fr and it worked beautifully,
> > > and gqcam is now able to open the device and the video is going through
> > > without any problems.
> > > The only problem is gnomemeeting can't read but a green screen.
> >
> > Probably a driver bug. GQCam is using RGB, not YUV420P.
> > However, you can add a hint to PWLib for such buggy drivers, to force a
> > specific palette for example.
> >
> > Hints and doc about hints can be found in :
> > pwlib/src/ptlib/unix/video4linux.cxx
> >
> > > Did anyone have the same issue? There's no documentation I could find to
> > > make it work.
> >
> > If I was you, I would mail the driver author.
> >
> > > I also don't know how to increase the verbosity or get logs from
> > > gnomemeeting which could help you, so let me know if I can do something.
> >
> > gnomemeeting --debug=3 should display a verbose log or dump it in a file
> > in the current directory.
> >
> > > Thanks a lot,
> > >
> > > Christian Burger
> > >
> > > _______________________________________________
> > > GnomeMeeting-list mailing list
> > > GnomeMeeting-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/gnomemeeting-list
> 
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-- 
 _      Damien Sandras
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