Pd-list December 2007

pd-list@lists.iem.at

129 participants
239 discussions

Pix_record issue
by Olivier Heinry 19 Jan '08

19 Jan '08

Hi, there's a problem with the pix_record object which is atm makes it totally unusable on debian testing. Unofortunately for me , I did a patch which relies on it, and that used to work until May , and when I reopened it in December dont work any more. Neither the official Debian package of Gem nor Pd-extended or CVS compiled version work. I asked around me a couple of other Pders and actually it doesnt look platform specific, since that, most people avoid using it and turn to pix_write, recordmydesktop and miscellaneous exotic workarounds. So I guess it is related to the source code (i read the archive of gem-dev about hard coded 20fps and the many pd crashes that occur ) and I was wondering if there was a way have its bugs corrected (be it by the magical powers of a bounty) or will it stay postponed to the Greek calendas? Is it more reasonable to patch a woraround with pix_write? Thanks for any advice or opinion. O.

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Subject: can't see objects Pd-0.40.3-extended-20071228-windowsxp-i386.exe
by Ingo Scherzinger 18 Jan '08

18 Jan '08

Eversince 0.40.3- extended certain objects are invisible on my two machines (AMD Windows XP SP2). Object, Message, Number, Symbol Comment, Graph cannot be seen on loading existing patches or after inserting them from the put menue. Array can be put. Values and titel can be seen but no border. All other objects can be put, seen and their values can be changed correctly. I know the objects are there because they appear in text mode. They also react to the gui since somtimes when I click on certain spots it is printing something. I can also move the "invisible" object somwhere else and now when I click there it is printing the same thing. So, what's wrong? How can I fix this? And why does "ctrl + click" do the same thing as "right click" lately? I cannot change values anymore without leaving edit mode (btw, I can't see in the menu if it is checked or not) Ingo Scherzinger

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rfcomm and comport device list
by gordo 17 Jan '08

17 Jan '08

hi all, iÅ½m running pd 0.39-1 on 2.6.17-gentoo-r8 and reading data from an incoming bluetooth device via bluezÅ½s rfcomm. after connecting: # rfcomm connect 1 Connected /dev/rfcomm1 to 10:00:E8:52:32:CE on channel 1 i can do: # cat /dev/rfcomm1 which cats all my incoming data correctly, but if iÅ½m printing device-list with comport-object, it pathetically outputs: [comport]: available serial ports: 0 /dev/ttyS0 thanks for any advice/hint /g btw. stupid newbie question: how can i access /dev/tty without starting pd as root?

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I just made a beginner's PD tutorial and posted it...
by Vreahli the Audio Bandit 17 Jan '08

17 Jan '08

Heya - I just made a PD tutorial for beginners and I was wondering if anyone wanted to do a sanity check... http://www.youtube.com/watch?v=FkmMzqohsDo In any case - I'm thinking about doing a series... Any ideas for topics / projects that would be good for beginners?

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PD synth concepts embedded in atmel or arduinos
by glerm soares 15 Jan '08

15 Jan '08

Hi, I know this could go off topic pretty fast, but I think this Is PD related and some people here will be interested (more than in arduino forum). I was playing with arduino with that examples that plays a buzzer just applying volts with delayMicroseconds() function. So I realized how nice would be if we could implement some PD ~ objects concepts (like delay lines, filters, oscilators, envelopes) in a arduino library (create something like a Synthesis library). Someone have tried something like this? I know that atmega168 have a lot of limitations for audio dsp, but it could be for lo-fi and bitcrushed sounds for studies and fun. well... if this still too off topic for here, there's a topic related in the arduino forum: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1176970454 but there's just few comments, this is the reason I thought here could be a place to find some interested people... thanx glerm

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gridflow grab image from video
by olsen wolf 11 Jan '08

11 Jan '08

buenas anyone knows to get a single frame out of a gridflow video goin into my #out window? tried the #in #out combo with open somefile.jpg but for my video its faulting... ev'ry idea welcome salutis olsen -- Planet Pluto bleibt!

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[psql] object hand-holding
by andy.graybeal＠casanueva.com 09 Jan '08

09 Jan '08

i installed postgresql, and got it running, created a user for myself, compiled [psql] from postlude (i'm using pd-extended from cvs). i opened up the psql-help file and started with the first instruction, and it created the database fine, i moved to the second command and get this error: psql: Action failed. PQresultStatus is PGRES_FATAL_ERROR i'm wondering where i can look for more information about what is going wrong, and what i can do to fix it. i think it would be wonderful if i could start using a database to store values :) -andy

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Installing GridFlow on MacOSX
by Jack 07 Jan '08

07 Jan '08

Small improvement but i get an error. If someone could help me ? (I want to create a tutorial for MacOsX users after). thx Jack ~/Desktop/Mickael/gridflow-0.9.0 rybn12$ ./configure This is the GridFlow 0.9.0 configurator within Ruby version 1.8.1-2003-12-25 [gcc3] GNU C++ Compiler 3 (or 4): --------------------------------------------> found [stl] C++ Standard Template Library: -----------------------------------------> found [gcc64] GNU C++ in 64-bit mode: ----------------------------------------------> missing (gcc: error: 'off_t' was not declared in this scope) [libruby] Ruby as a dynamic library: -----------------------------------------> found [librubystatic] Ruby as a static library: ------------------------------------> disabled (using libruby instead) [libtclh] Tcl headers <tcl.h>: -----------------------------------------------> found [libtcl] Tcl as a dynamic library: -------------------------------------------> found [pentium] Pentium-compatible CPU: --------------------------------------------> missing (powerpc-darwin instead) [mmx] MMX-compatible CPU (using NASM): ---------------------------------------> disabled (would need pentium) [usb] USB Library: -----------------------------------------------------------> missing (where is usb.h ?) [x11] X11 Display Protocol: --------------------------------------------------> found [x11_shm] X11 acceleration by shared memory (XSHM plugin): -------------------> found [sdl] Simple Directmedia Layer (experimental support): -----------------------> missing (gcc compilation error) [objcpp] GNU/Apple ObjectiveC++ Compiler: ------------------------------------> found [quartz] Apple Quartz/Cocoa Display: -----------------------------------------> found [aalib] Ascii Art Library: ---------------------------------------------------> found [jpeg] JPEG Library: ---------------------------------------------------------> found [png] PNG Library <libpng12/png.h>: ------------------------------------------> found [videodev] Video4linux Digitizer Driver Interface: ---------------------------> missing (where is linux/videodev.h ?) [mpeg3] HeroineWarrior LibMPEG3 <libmpeg3/libmpeg3.h>: -----------------------> missing (where is libmpeg3/libmpeg3.h ?) [mpeg3] HeroineWarrior LibMPEG3 <libmpeg3.h>: --------------------------------> missing (where is libmpeg3.h ?) [quicktimeapple] Apple's QuickTime: ------------------------------------------> found [quicktimehw] Plaum's LibQuickTime (try #1) <lqt/quicktime.h>: ---------------> disabled (using quicktimeapple instead) [quicktimehw] Plaum's LibQuickTime (try #1) <quicktime/quicktime.h>: ---------> disabled (using quicktimeapple instead) [quicktimehw] Plaum's LibQuickTime (try #2) <lqt/quicktime.h>: ---------------> disabled (using quicktimeapple instead) [quicktimehw] Plaum's LibQuickTime (try #2) <quicktime/quicktime.h>: ---------> disabled (using quicktimeapple instead) [puredata] PureData (or DesireData): -----------------------------------------> found [desiredata] DesireData: -----------------------------------------------------> missing (gcc: error: 'gobj_subscribe' was not declared in this scope) [gem09] PureData GEM (source code) with m_holdname: --------------------------> missing (gcc: error: `CPPExtern' has not been declared) [gem08] PureData GEM (source code) without m_holdname: -----------------------> missing (gcc compilation error) [opencv] Intel OpenCV: -------------------------------------------------------> missing (gcc compilation error) [fftw] FFTW (Fastest Fourier Transform in the West): -------------------------> missing (gcc compilation error) generating ./config.make generating config.h See ./config.log if you want the details of the configuration tests. If you are satisfied with that configuration, you may go on, and do "make". "make install" is not needed anymore, just move your gridflow directory to "lib/pd/extra". If you get stuck, you could contact the author about it, but first make sure you read "doc/install.html". ~/Desktop/Mickael/gridflow-0.9.0 rybn12$ make ruby -w base/source_filter.rb base/grid.h base/grid.h.fcs ruby -w base/source_filter.rb base/main.c base/main.c.fcs g++ -I/sw/include -I/usr/local/include -I/Users/rybn12/include -I. -xc ++ -fno-operator-names -fno-omit-frame-pointer -I/usr/X11R6/include - I/sw/lib/ruby/1.8/powerpc-darwin -I/usr/include -I../Gem/src -I../Gem/ src -falign-functions=16 -DMACOSX -Wall -Wno-unused -Wunused-variable -g -fPIC -I. -O2 -funroll-loops -c base/main.c.fcs -o base/main.o base/main.c.fcs:39:22: error: execinfo.h: No such file or directory base/main.c.fcs: In function `void blargh()': base/main.c.fcs:522: error: 'backtrace' was not declared in this scope base/main.c.fcs:523: error: 'backtrace_symbols' was not declared in this scope base/main.c.fcs: At global scope: base/main.c.fcs:297: warning: 'ciFObject' defined but not used make: *** [base/main.o] Error 1

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[OT] slightly: building audio computer with PD
by Michael Iber 06 Jan '08

06 Jan '08

Hello list, I have to build an audio computer running PD for an installation. Since I am not too familiar with actual hardware issues, I would like to ask, if there are any restrictions or aspects to kepp in mind concerning certain processor types, motherboards, graphic cards, HDs (SATA) ... I will use a Hammerfall HDSP 9652 and the JAD-Distribution on a 32bit-architecture Thanks a lot and a happy New Year, Michael Michael Iber www.michael-iber.de mail(a)michael-iber.de

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GEM : GLSL Mixer - working 2 channel video mixer example
by vade 06 Jan '08

06 Jan '08

Hello Here is a 2 channel mixer using overlay blend mode with GLSL. This works, is decently fast and gives me the expected result. If you want more blend modes, feel free to grab them from http://001.vade.info (or elsewhere, most are trivial to figure out)- the glsl shaders for the mixers use the same subroutine layout in the glsl, so it is trivial to swap. I did not include them out of sheer laziness. Caveats with PD 0.4.03 Extended nightly from Dec 24th (Mac OS X 10.5.1, QT 7.3, Intel): - had to edit the GLSL program to fix multitexture coordinate issue. Only can use the texture dims from the zeroths texture unit. - could not get sampler2DRect working at all - only had a single texel mapped it seemed. - had weird issue where I would sometimes have to close the gemwin (0, destroy) and then re create it to see the textures assigned to texture units. this happened most often after closing and re-opening the patch. Please see the included question(s) within the PD patch concerning using framebuffer to grab the output of the rendered shader and send it to yet another shader. Ive included an exposure shader in an attempt to make a chain of GLSL effects. I however could not get gemframebuffer to output any usable texture after using glslprogram. Thanks, hope this is helpful to those out there FUDDLE DUDDLE !@#!@#!@#()*!@#(*@# :)

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Pd-list December 2007