m.kronlachner at student.tugraz.at
Tue Nov 15 02:07:45 CET 2011
Am 14.11.11 19:19, schrieb tim vets:
> 2011/11/14 Budi Prakosa <iyok at deadmediafm.org
> <mailto:iyok at deadmediafm.org>>
> hi tim, have you try the latest version of pix_freenect by matthias?
> Hi Budi and list,
> I tried pix_freenect.pd_linux, but unfortunately: "pix_freenect: can't
> load library"
> No idea why...
> I'm running GEM: ver: 0.92.3. Is v0.93 a requirement maybe?
gem v0.93 is needed!
but there is a binary available now anyway so you don't have to get
yourself in trouble compiling it for osx on your own.
there was a problem with the path settings in the dylibs. try it again,
i hope it's working now.
> I also tried compiling pix_freenect myself, but got stuck at:
> "In file included from pix_freenect.cc:23:0:
> pix_freenect.h:38:31: fatal error: libfreenect-audio.h: No such file
> or directory
> compilation terminated."
> pix_freenect readme says: "get and install latest libfreenect from
> https://github.com/OpenKinect/libfreenect (compile with Audio support!)"
> libfreenect readme says: "Audio is currently being worked on."
yes, audio is being worked on by the libfreenect team, but in the latest
version from git it is included and ready for use.
i didn't have enough time to test audio under osx so it won't be
included when building pix_freenect for osx. (it was quite unstable when
i tried it)
now it won't search for libfreenect-audio.h while compiling for osx.
for audio i think i will divide the external into two anyway.
one for video, one for audio. i will have to check it out if it's
working simultaneously for one kinect then.
> On Mon, Nov 14, 2011 at 10:53 PM, Mathieu Bouchard
> <matju at artengine.ca <mailto:matju at artengine.ca>> wrote:
> > Le 2011-11-14 à 14:44:00, tim vets a écrit :
> >> Attached is the output of "valgrind --leak-check=full
> pdextended" and
> >> opening fux_kinect-help.pd.
> > I think that you better not add --leak-check when just looking
> for a crash.
> > But the only problem it does, is make the log file bigger.
> > Here's what I found (summarising the important error messages) :
> > Invalid write of size 1 at convert_bayer_to_rgb (in libfreenect)
> by [...] by
> > libusb_handle_events_timeout (in libusb). Address 0xa066360 is
> [between 0
> > and 5] bytes after a block of size 307,200 alloc'd
> > This means that when libusb gives libfreenect the RGGB buffer and
> > libfreenect is converting it to plain RGB, it makes a mistake
> and writes 6
> > bytes more than just 640*480 pixels, as if there were 2 extra
> pixels at the
> > end. But I think that this is a bit misleading. It looks as if
> Valgrind was
> > skipping a lot of other errors (probably by not able to detect
> them). Read
> > on.
> > Then there is invalid write of size 1 from the same place but
> « Address is
> > 749 bytes inside a block of size 12,800 free'd ». This doesn't
> look like any
> > malloc that we know about. The number of bytes does not ring a
> bell either.
> > But then it says that the memory was freed by request of
> > /usr/lib/nvidia-current/libGL.so.270.41.06, which is a part of
> your video
> > driver. (???)
> > But I just looked at how convert_bayer_to_rgb is written, and it
> > look like it writes to more than one buffer. This function only
> writes 480
> > rows of 640 columns. But note that it writes RGB values, three
> bytes per
> > pixel. That means you need a malloc(640*480*3) for each of the
> three RGB
> > buffers in fux_kinect.
> > | Mathieu BOUCHARD ----- téléphone : +1.514.383.3801
> <tel:%2B1.514.383.3801> ----- Montréal, QC
> > _______________________________________________
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> Budi Prakosa
> house of natural fiber (HONF)
> yogyakarta new media art laboratory
> wora wari A80/6 baciro yogyakarta indonesia
> Pd-list at iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
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