Armin K. wrote:
On 06/02/2014 08:59 PM, Bruce Dubbs wrote:
Armin K. wrote:
On 06/02/2014 08:25 PM, Bruce Dubbs wrote:
Armin K. wrote:
On 06/02/2014 07:16 PM, Bruce Dubbs wrote:
Christopher Gregory wrote:

Not sure if you passed the  --enable-vp8 to the configure line for
libvpx,
but that *may* be the issue.  I don't have a camera, but quick
search of
google lead that you needed the libvxp installed, which you do
have, so
just a stab in the dark on my part. :)

It does not seem to be necessary.  I just used the instructions in the
book and I do have

$ ldd `which vpxdec`
           linux-vdso.so.1 (0x00007fff9c155000)
           libvpx.so.1 => /usr/lib/libvpx.so.1 (0x00007f3d23bc6000)
           libm.so.6 => /lib/libm.so.6 (0x00007f3d238c2000)
           libpthread.so.0 => /lib/libpthread.so.0 (0x00007f3d236a4000)
           libc.so.6 => /lib/libc.so.6 (0x00007f3d232f6000)
           /lib64/ld-linux-x86-64.so.2 (0x00007f3d23fce000)

$ vpxdec
Usage: vpxdec <options> filename
...
Included decoders:

       vp8    - WebM Project VP8 Decoder v1.3.0
       vp9    - WebM Project VP9 Decoder v1.3.0

gstreamer-1.2.x vpx decored is part of gst-plugins-good. It was moved
from gst-plugins-bad-1.0.x iirc. libvpx should be added as a
recommended
dep to gst-plugins-good-1.2.x instead of gst-plugins-bad-1.2.x.

Thanks.  I got another message that said essentially the same thing.
Rebuilding in the correct order got rid of the error message.

Now I don't get the error message.  Unfortunately, cheese still doesn't
work for me.  I have a black window.  Actually, there are several
problems.

The only menu item is "Cheese" and that has submenu items:  Fullscreen,
Preferences, Help, About, and Quit.  Help doesn't work.  I get the
message:

** Message: cheese-application.vala:478: Error opening help: Operation
not supported

I'm not sure what this means.  I'll note here that I have not yet built
any browser for this system.  If that's all it takes, I can do that.
Does anyone know how the help system works?


Install Yelp.

Another thing to add to the cheese page.  I did install yelp-xsl.  It
will take me a while as I don't yet have WebKitGTK and it's dependencies
built.


http://www.linuxfromscratch.org/blfs/view/svn/gnome/yelp.html

" The Yelp package is not required for a functional GNOME Desktop. Note,
however, that without Yelp you will not be able to view the built-in
Help provided by core GNOME and many of the support applications. "

It's already in runtime category, not fun to add it as a dep to every
app, much like dconf, gnome-icon-theme*, gnome-themes-standard, etc ...

More importantly, I get a black window and some greyed out controls.

It may be that the camera has to be turned on.  This is a built in
camera on the laptop and I don't know how to turn it on and off if that
is indeed the problem.  Can anyone help in this area?

You need a kernel driver for it. My built-in camera uses
CONFIG_USB_VIDEO_CLASS video driver (USB Video Class). Drivers for
cameras are in Drivers -> Multimedia. I don't know how to help more
here. To see if any driver claimed it, check if /dev/video0 exists
(given that there's only one camera) and gstreamer will take care of
"turning it on".

Yes, I have /dev/video0 and cheese has in Prefereces->Webcam "TOSHIBA
Web Camera (/dev/video0)"  I just don't think that gstreameer is turning
it on.  I'll google for that.

Come to think about it, I have an external Logitech camera that I've
never used.  It has an external on/off switch.  I'll try that.


Someone already mentioned, try installing v4l-utils and remember to
recompile ... um ... gst-plugins-good I think to get the right plugin.
Only (optional) dependency iirc should be Qt4 for some gui program.

Installing v4l-utils did it! It's a simple CMMI app, but installing it and then rebuilding gst-plugins-good allowed the camera to come up perfectly.

Thanks for all the suggestions.

  -- Bruce



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