Pd-list March 2004

pd-list@lists.iem.at

158 participants
381 discussions

Gem Pix_write/screen grab
by timon botez 13 Mar '04

13 Mar '04

Hi, is there anyone who has managed to output a sequence of screengrabs from GEM on OS X (ideally a movie sequence)? I have looked at the Pix_write example, but has not managed to get this working. Its unclear to me where this should be attached, and how the messages specifying the files should be written. Any information is appreciated. Timon.

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pdp v4l problems
by Thomas Comiotto 13 Mar '04

13 Mar '04

Hey, I am not sure where to file pdp related bugs, so I am reporting some issues I face to you. Maybe someone can help me out? System info: Debian Kernel 2.6 on x86 with pwc/pwcx modules enabled, pd0.37-1 tarball, latest pdp tarball from your website, Philips 740 webcam. I am basically new to pd. Problems: Using pdp_v4l connected to a xv sink, vl4 device open succeeds, but * with a framerate of 27(!)fps. * the captured input is rendered greyscale instead of in color and with extremely overloaded brightness level. * display gets interrupted by a 100ms black gap every second or so - guess thats related to the 27fps? I get this distortion/gap-jitter combination even with metro settings ranging from 10 to 300. After shutting down pd and opening the cam again with camstream I _still_ see the gaps, then by resetting cam-settings I get my cristal clear colored 25fps back. Consequently I disabled direct pwc-support in pdp and recompiled, without luck - pdp_v4l still seems to change pwc specific cam-settings. The PDP readme mentiones included "special" pwc-support. What does that mean/do? And how can I disable that except of the configure --disable-pwc option? The cam runs flawlessly in every other v4l compiant application on my system (camstream, gstreamer, mp4live). * sending a "close" message to pdp_v4l doesn't release it's device. * sending pdp_v4l a "type" msg yields a "no method for 'type'" warning and does basically nothing. Before I run to the next store to get me another cam, is there a way to resolve (at least) the image distortion and "black-gaps interruption"-sync issues? Or is there someone around doing reliable v4l-capturing and could give me some hints on how to setup. Best Regards, Thomas Comiotto

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virmidi not functioning?
by Meka[ni] 13 Mar '04

13 Mar '04

Earlier I was using muse + pd for some projects. Not it seams not to work with virmidi. How can i check which of the programs doesn't work properly with virmidi (muse or pd)? I've linked midi-01 -> sound/midi1 and pd says that it opened it with code 5 (success), but midi test doesn't work. What to do? Thanx :o) _________________________ Koji ce mi ovo Mandrak U se i u svoje SuSE

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Re: [PD] Still with the GEM!
by thewade 13 Mar '04

13 Mar '04

Hello IOhannes m zmoelnig (and the pd-list), Heres what my config.log said about -lGL. It looks like it actiually found it, which would be consistant with the fact that other programs like fltk build and found -lGL. It just looks like the function Gem\'s config is looking for has some errounious linker object file... Configure couldnt find MesaGL, because my Mesa library is OSMesa, but if it ginds just norman GL, then were happy, right? Any hints? Thanks for the help, -thewade V...Begin config.log output...V configure:2664: checking for glInitNames in -lGL configure:2683: gcc -o conftest -g -O2 -L/usr/X11R6/lib conftest.c -lGL -Wl,-shared -Wl,-export-dynamic -lXxf86vm -lXext -lX11 -L/usr/local/lib 1>&5 /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x1c): In function `__libc_csu_init\': : undefined reference to `__init_array_end\' /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x22): In function `__libc_csu_init\': : undefined reference to `__init_array_start\' /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x37): In function `__libc_csu_init\': : undefined reference to `__init_array_start\' /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x5b): In function `__libc_csu_fini\': : undefined reference to `__fini_array_end\' /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x61): In function `__libc_csu_fini\': : undefined reference to `__fini_array_start\' /usr/lib/libc_nonshared.a(elf-init.oS)(.text+0x7f): In function `__libc_csu_fini\': : undefined reference to `__fini_array_start\' /usr/bin/ld: conftest: hidden symbol `__fini_array_end\' isn\'t defined collect2: ld returned 1 exit status configure: failed program was: #line 2672 \"configure\" #include \"confdefs.h\" /* Override any gcc2 internal prototype to avoid an error. */ /* We use char because int might match the return type of a gcc2 builtin and then its argument prototype would still apply. */ char glInitNames();

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Interpolation
by Josh Steiner 13 Mar '04

13 Mar '04

I have a question about interpolation, as in [tabread4~] vs. [tabread~] ... my performance environment often has like 20-40 samplers playing simultaneously and its really beggining to bog down my cpu to the poitn where i'm getting dropouts, so i'm looking for ways of optimizing my patches. i'm using tabread4~'s in it because i though this is more "correct" but i really dont know much about it. how much does it really affect the sound if i am just using it as a simple sampler? how much effeiciency gain can i expect from using non interpolated tabread? thanks. -josh -- ________________________________________________________________ live experimental electronic music -- http://bluevitriol.com independent u.s. drum'n'bass -- http://vitriolix.com

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forum~???
by nekomook＠antibling.org 12 Mar '04

12 Mar '04

what about a forum around pure data subject ? i have started one on http://puredata.antibling.org don't hesitate to give advice, or give any help to make something efficient. thanks in advance, i hope it could help the pure-data user community.

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upgrade from 0.37 to 0.37.1 should be manditory...
by Josh Steiner 12 Mar '04

12 Mar '04

this is just a heads up in case anyone (like me) missed the release note in .37.1 that MSP fixed a nasty bug where $0's in gui objects were getting saved as 1001, etc, breaking any saved patch that rely's on the proper $0 behavior. took me a few minutes to figure out what was going on :) -- ________________________________________________________________ live experimental electronic music -- http://bluevitriol.com independent u.s. drum'n'bass -- http://vitriolix.com

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wishlist
by Roman Haefeli 12 Mar '04

12 Mar '04

Hoi zÃ¤me i don't want to be impolite, but maybe some of pd-users care about the following topics: pure-data.org i don't really know what happened to this site. i think i once read that if enough people are interested, pure-data.org would go online again. From my part, i am quite interested. It's impressing how many sites have still a link to pure-data.org pdvst: i'm a quite intensive user of pdvst, the tool developed by joseph sarlo. Maybe jsarlo would develop a pdVSTi version if enough people are interested. For me it would open a wide range of possibilities. Roman

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windows 98 newbie wave out no tcp
by lint 12 Mar '04

12 Mar '04

hi i'm a newbie with my windows98 i've fot a tcp nodelay failed and a wave out open error mmsystem008 i'm using a very basic sound card and can't get around these two problems heeeeeeelp ! thanx oden

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(no subject)
by Alyte Podvoiskis 12 Mar '04

12 Mar '04

Hi, I'm new to the Pd environment and so no doubt I'll have many, many queries over the following months! Here's the first of them: I am currently loading Jpeg images and processing the pixel information. I require the length and width of the whole image, in pixels, but can't seem to find anything that provides this function. Anyone able to help?! Cheers Alyte

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Pd-list March 2004