Pd-list August 2010

pd-list@lists.iem.at

123 participants
216 discussions

laptop for pd/gem
by pierre 28 Aug '10

28 Aug '10

Hi all I'm in the way to buy a laptop theses days and would know if someone could give me a good advice, I need to install a debian (or ubuntu) system on it. I'll use the laptop for audio/video liveshows with pd/gem, with many GEM objects so a good graphic card is needed I have a max ~900euros budget. Short story : Some years ago a bought an asus a8js with 7700Go nvidia graphic card, very good performances and linux friendly, worked perfectly with all debian/ubuntu distros I've used and I've done a lot of lives and works with it... BUT ! This card have burned and damaged all my motherboard ! This is due to a very bad graphic nvidia (proprietary) driver, explanations here : http://www.zdnet.com/blog/hardware/warning-nvidia-19675-drivers-can-kill-yo… Now a lots of laptop are shipped with ATI cards, so my questions are : - are ATI cards goods for pd/gem users ? - is someone here have any advice on a good laptop for pd/gem use Thanks in advance for any comment/ideas, pierre

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can't compile pdp-0.12.5
by Willy WOLFF 28 Aug '10

28 Aug '10

I want to compile this for make gentoo ebuild. But i have error. autoconf ./configure make make -C modules make[1]: Entering directory `/home/willy/develop/pdp-0.12.5/modules' make -C generic make[2]: Entering directory `/home/willy/develop/pdp-0.12.5/modules/generic' gcc -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -fPIC -O2 -funroll-loops -fomit-frame-pointer -ffast-math -DPDP_VERSION=\"0.12.5\" -I. -I/usr/X11R6/include -I../include -I../../include -o pdp_reg.o -c pdp_reg.c [...] gcc -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -fPIC -O2 -funroll-loops -fomit-frame-pointer -ffast-math -DPDP_VERSION=\"0.12.5\" -I. -I/usr/X11R6/include -I../include -I../../include -o pdp_rawin.o -c pdp_rawin.c gcc -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -fPIC -O2 -funroll-loops -fomit-frame-pointer -ffast-math -DPDP_VERSION=\"0.12.5\" -I. -I/usr/X11R6/include -I../include -I../../include -o pdp_rawout.o -c pdp_rawout.c In file included from /usr/include/fcntl.h:217, from pdp_rawout.c:55: In function 'open', inlined from 'rawout_thread' at pdp_rawout.c:141: /usr/include/bits/fcntl2.h:51: error: call to '__open_missing_mode' declared with attribute error: open with O_CREAT in second argument needs 3 arguments make[2]: *** [pdp_rawout.o] Error 1 make[2]: Leaving directory `/home/willy/develop/pdp-0.12.5/modules/generic' make[1]: *** [current] Error 2 make[1]: Leaving directory `/home/willy/develop/pdp-0.12.5/modules' make: *** [pdp_all] Error 2 Did somebody compile pdp with that error ???

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Video codec advice
by Dafydd Hughes 28 Aug '10

28 Aug '10

Hi folks Trying to play some 4-8 minute videos with sound. Using Gem (pix_film + readsf~) it's working but I get lots of clicks, even with higher latency, unless I split it into 2 instances. I get the feeling this may be a codec/compression thing, but I don't know enough about it to make an informed decision. I'm on a new MacBook Pro, but the installation will eventually be running on a slightly older computer, maybe a MacBook without dedicated graphics. Any help would be greatly appreciated! cheers dafydd

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[PD-announce] [31-08 :: 03-09 ] workshop in prague : introduction to real-time media and interactivity with pure-data
by ydegoyon＠gmail.com 27 Aug '10

27 Aug '10

ahoj! next week in prague : 'real-time media processing and interactivity with pure data' : an introduction workshop to the wonders of real-time interactivity using open-source environments like pure-data. for who ? : this workshop is aimed at people working in performance art and interactivity, no specific computer knowledge is required, but a real interest in real-time processing is recommended. ( no cryptic programation skills involved ). people wanting to make a small prototype of an interactive project are the most likely to find some inspiration in these sessions. where ? : theatre "alfred ve dvore" : http://www.alfredvedvore.cz/cs/ Františka Křížka 36, praha map: http://mapy.cz/#mm=ZTtTcP@sa=s@st=s@ssq=Franti%C5%A1ka%20K%C5%99%C3%AD%C5%B… when ? : from tuesday 31-08 to friday 03-09, in the afternoons ( 14:00h to 19:00h ) themes : * basics of real-time processing in pd ( sound and video ) * computer vision for pd * basic setups for different contexts : dark room ( theater ), outdoors ... modalities : participants should bring a computer and video devices ( webcam or cameras ), if you come with a pc with windows, we will set up linux/ubuntu on it ( it doesn't hurt ! ) this workshop is part of the invaze festival : http://invaze.tk the workshop is free, donations are welcome. for more informations or if you can't access to the space, contact Ales Zemene : +420 77 313 96 96 nashledanou, sevy@trafaćka _______________________________________________ Pd-announce mailing list Pd-announce(a)iem.at http://lists.puredata.info/listinfo/pd-announce

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[OT] understanding video formats
by Matteo Sisti Sette 27 Aug '10

27 Aug '10

Hi, Can anybody point me to some resource where the general aspects of video files are explained? Those that apply (though with some differences) to most video formats and regardless of the codec being used? Such as, for example, how timecode is treated (what is a timecode track, are timecode breaks within a file possible, etc); how variable frame rate is managed, and this kind of things? thanks m.

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Re: [PD] howto get "pool"
by João Martins 27 Aug '10

27 Aug '10

Hi, S. Jensen, I'm looking for a way to get "pool" working on a Linux distribution (Ubuntu or Ubuntu Studio are my main goals). I've noticed that you were able to compile your own Pd-extended and were looking to add "pool" to it. Did you manage to get "pool" working? Installing it is the easy bit, I guess (I'm having no problems installing externals in Linux, as I have some experience in Pd), but "pool" that works without any problem in my Mac setup (my main one) appears to be incompatible with Gem on Linux, regardless of GEM version or Linux distro. Did you got it to work? If you did, can you point me in the right direction? Thank you very much. João Martins -- João Pedro Martins música . web design http://joaomartins.entropiadesign.org mail: joaomartins(a)mac.com skype: joaopsmartins ichat: joaomartins msn: joaopsmartins

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Array bug in RC-5
by Jonathan Wilkes 27 Aug '10

27 Aug '10

Hi list, I noticed a bug with the pd-ext release candidate from 19-Aug-2010 05:27: if you create an array "array1" and do something as simple as change the x size in "Properties" (from 200 to 300, for example), the array will no longer redraw when you do something as simple as: [osc~ 440] | | [bang( | / [tabwrite~ array1] Tested on hardy and winxp. (I just realized I had Gridflow installed on the linux machine, but I didn't load it on the winxp machine. Doesn't seem like that would make a difference, though.) -Jonathan

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Problems with "pool" object
by João Martins 27 Aug '10

27 Aug '10

Greetings. This is my first mail sent to the pd-list, that I've used often as a resource to solve my Pd problems. Thomas Grill, the author of "pool" and all the other "flext" goodness, such as the xsample externals recommended asking help here, since the problem I'm facing is somewhat specific. I use Pd-extended 0.41.4 on my MacBook as my main programming environment and I'm developing an installation project that uses a tangible interface and fiducials. For better tracking and management of the fiducials, I'm using JY Gratius' abstractions, that require "pool". No problem on my Mac, but the deployment of the installation has to be done with a Linux machine, and now I'm facing some strange issues. The available Pd-extended packages for recent Linux distributions are 0.42.5-rc5 and they seem to work just fine (I'm trying out Ubuntu and Ubuntu Studio 9.10 and 10.04), but whenever I try to use the pool object (directly, or via the fid_class object from fid_abs), PureData freezes. I've launch it via terminal with the double verbose option and I get a lot of jibberish (I'm really a newbie when it comes to Linux) and some of the error I got point in the direction of Gem. Some even pointed to early discussions here about Gem versions and flext externals and problems with file or command name replacements (sorry but I can't find the link, now...). I've made a simple test, following one of Grill's suggestions here on the mailing list of testing on Pd-vanilla, and the fact is that when I disable GEM, "pool" works just fine. But I need GEM and pool working together, as they do on my Mac. Is this a version problem? Does the new Gem "breaks" "pool" and/or other flext objects? Is it a Linux issue? Can anyone point me at the right direction when it comes to having a stable Pd-extended on Linux with externals such as "pool"? Thank you all. João Martins trying to use JY Gratius fid_abs: http://jy.gratius.free.fr/ Thomas Grill pool: http://puredata.info/Members/thomas/pool -- João Pedro Martins música . web design http://joaomartins.entropiadesign.org mail: joaomartins(a)mac.com skype: joaopsmartins ichat: joaomartins msn: joaopsmartins

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R: Re: troubles with GEM and pd 0.42.5-extended-rc5, in Ubuntu 10.04 amd64
by tomegale＠libero.it 27 Aug '10

27 Aug '10

----Messaggio originale---- Da: husk00(a)gmail.com Data: 26/08/2010 19.22 A: "tomegale(a)libero.it"<tomegale(a)libero.it> Cc: <pd-list(a)iem.at> Ogg: Re: [PD] troubles with GEM and pd 0.42.5-extended-rc5, in Ubuntu 10.04 amd64 On Thu, Aug 26, 2010 at 7:10 PM, tomegale(a)libero.it <tomegale(a)libero.it> wrote: Hi, I am taking a workshop and pd can't load Gem! I installed pd 0.42.5-extended-rc5 amd64 on Ubuntu Lucid 10.04 64bit. When start pd I read this in console: /usr/lib/pd-extended/extra/Gem/Gem.pd_linux: libmpeg3.so.1: cannot open shared object file: No such file or directory Gem: can't load library Hi Tom,you need to install libmpeg3-dev packagegood luck with your workshop!husk Resolved! Thanks Husk! Gio, Sad and Zee salute you! I hope to see you soon!

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two webcam in gem
by Ricardo Brazileiro 27 Aug '10

27 Aug '10

hi all, How can I use two webcam in Gem to tracking (pix_blob) ? Is it possible? I have two webcam, /dev/video0 and /dev/video1. I tested using pix_video but I only change the device in the same window. -- ricardo brazileiro http://rbrazileiro.info

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Pd-list August 2010