[PD] fux_kinect

[tim vets]

2011/11/15 Matthias Kronlachner <m.kronlachner at student.tugraz.at>

>  hi!
>
> Am 14.11.11 19:19, schrieb tim vets:
>
>
>
> 2011/11/14 Budi Prakosa <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.
>
>
Has the Linux version been updated as well?
trying the binary from
http://www.matthiaskronlachner.com/wp-content/uploads/2011/11/pix_freenect_0.03.zip
with the following setup now:
GEM ver: 0.93.3
compiled: Nov 11 2011
0.43.1-extended-20111114
Ubuntu 11.04 (so not 11.10, problem?)

/usr/lib/pd-extended/extra/pix_freenect.pd_linux: can't load library

gr,
Tim

 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.
>
> matthias
>
>  gr,
> Tim
>
>   On Mon, Nov 14, 2011 at 10:53 PM, Mathieu Bouchard <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 doesn't
>> > 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 ----- 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
>> http://www.natural-fiber.com
>>
>
>
>
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