On Thursday 11 March 2010 17:03:09 Frank Schaefer wrote:
> Pascal Stumpf schrieb:
> > Hello guys,
> >
> > I’d very much like to help out with this, at least on FreeBSD.
>
> Great !
>
> > V4L
> > compatibility was released recently, so it shouldn’t be too
hard to get
> > this to work.
>
> Does FreeBSD support the V4L2-API or only V4L1 ?
> What about other BSDs ?
Both V4L2 and V4L are supported. Currently it’s only for
FreeBSD, and I don’t know about any plans for other BSDs.
>
> > First off, I noticed that building kdenetwork4 (from ports)
actually
> > fails when v4l is installed, since cmake tries to configure it
with
> > v4l-support and make then does not find the required
header files
> > although they are installed by the multimedia/libv4l and
> > multimedia/v4l_compat ports. Looking at the source code,
it now became
> > obvious to me why. -_-
> > I’ll try again as soon as I get on my FreeBSD system again
and report
> > back.
>
> Hmm... compilation should not fail on FreeBSD...
> I can't see why, the v4l-headers are included only #ifdef
__linux__ .
> Could you please post the error messages ?
Well: Since v4l is found on the system by cmake, it tries to
compile it with webcam support. However, since the necessary
headers are only included by #ifdef __linux__, compilation fails. I
have now tried removing the "defined (__linux__)" stuff in the
sourcecode, but it seems there are problems with the header
files provided by the multimedia/v4l_compat port:
[ 0%] Built target kopete_automoc
[ 10%] Built target kopete
[ 10%] Built target kopete_videodevice_automoc
[ 10%] Building CXX object
libkopete/avdevice/CMakeFiles/kopete_videodevice.dir/kopete_videodevice_automoc.o
In file included from /usr/local/include/linux/videodev.h:17,
from /home/pascal/src/kopete-
build/libkopete/avdevice/../../../kopete/libkopete/avdevice/videodevice.h:52,
from /home/pascal/src/kopete-
build/libkopete/avdevice/../../../kopete/libkopete/avdevice/videodevicepool.h:31,
from /home/pascal/src/kopete-
build/libkopete/avdevice/moc_videodevicepool.cpp:10,
from /home/pascal/src/kopete-
build/libkopete/avdevice/kopete_videodevice_automoc.cpp:4:
/usr/local/include/linux/videodev2.h:67: error: declaration does
not declare anything
/usr/local/include/linux/videodev2.h:72: error: declaration does
not declare anything
*** Error code 1
Stop in /home/pascal/src/kopete-build.
*** Error code 1
Stop in /home/pascal/src/kopete-build.
*** Error code 1
Stop in /home/pascal/src/kopete-build.
The lines in question are:
typedef uint64_t __u64;
and
typedef int64_t __s64;
Could this possibly have anything to do with the architecture
(amd64)? :/
>
> > Regards,
> > Pascal
> >
> > PS: Please CC me on replies since I’m not subscribed to
the list.
>
> You should subscribe to the list, otherwise Matt has to
approve all you
> posts :(.
Ok, I’ll subscribe. :)
>
> Regards,
> Frank
Regards,
Pascal
>
> >> I noticed that we currently enable video-support only for
Linux.
> >> It should be possible to enable it for other (Unix-)
systems, too, if
> >> they provide the V4L or V4L2-API (using compat-ioctls or
whatever).
> >>
> >> If anyone want to test it/work on it, he should start with
modifying the
> >> lines
> >>
> >> #if defined(__linux__) && defined(ENABLE_AV)
> >>
> >> in libkopete/avdevice/videodevicepool.cpp.
> >>
> >> Maybe that and possibly a different #include for the API-
headers are
> >> already sufficent to get it work.
> >>
> >> Cheers,
> >> Frank
>
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