Pd-list August 2010

pd-list@lists.iem.at

123 participants
216 discussions

exact meaning of netsend outlet
by Peter Plessas 16 Aug '10

16 Aug '10

Dear list, wondering what the exact meaning of the outlet of [netreceive] in TCP mode is: Does it indicate whether Pd through the OS was able to open a port or does it indicate if a TCP packet arrived at the destination? And: Am I correct assuming that netsend only outputs a message when it got a (send ...) message into its inlet? So there is no way to indicate whether the receiving machine is online unless I keep sending heartbeat/ping messages? thank you for your help! P

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recording GEM output weird framerate
by Marco Donnarumma 16 Aug '10

16 Aug '10

Hi all, it's been a week now I'm struggling to record properly a GEM output, reading archives and forums. I have fairly complex audiovisual patch with multiple geos, four pix_snaps to create motion blur effect for 1280x320 res, and data exchange through local network. However I can record in a really good quality using both pix_record or pix_write. The problem is the recorded video is faster than the actual one. It doesn't matter if I record frames with pix_write and build a movie with ffmpeg or I record a whole movie with pix_record, the resulting movie is faster anyway. (I can confirm it 100% as I also record audio at the same time, and it is indeed longer) This happens on a machine with ATI card, both in ubuntu jaunty and windows with Pd-ext 42.5 rc 5. What is even weirder is that if I load the recorded video into Pd with pix_film it tells me the video has 115 fps, but with any other software fps is between 20 and 30 (which I assume should be the proper framerate). Anybody experienced the same? What could I do about it? Today I'll have the chance to try it on another machine. Thanks -- Marco Donnarumma aka TheSAD Independent New Media Arts Professional, Performer, Teacher - Edinburgh, UK PORTFOLIO: http://marcodonnarumma.com LAB: http://www.thesaddj.com | http://cntrl.sourceforge.net | http://www.flxer.net EVENT: http://www.liveperformersmeeting.net

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process control: startup priority/cpu weirdness?
by Damian Stewart 16 Aug '10

16 Aug '10

hi Pd/piksel, apologies for cross-posting, and for off-topicness, but i need an answer kind of quick and i figure these channels will get a fastest response :-) so i'm trying to start up my openFrameworks ofxPd app on my beagleboard, running Ubuntu 10.04. if i start it manually as a normal user from the console, in the foreground, it works fine, using about 77-80% cpu, peaking at 99% sometimes. if i start it in the background as a normal user, it uses 99% cpu all the time, and i get buffer under-runs. if i start in the background as superuser, the pd engine thread gives itself real-time priority but the app still uses 99% cpu all the time and gives buffer under-runs. if i start it in the background using nice -19, it still gives buffer under-runs. if i add an init.d script, it exhibits exactly the same behaviour as if it is run as superuser in the background. so two questions: a/ what could be going on here? b/ how can i get the nice console behaviour in a startup script? thanks, d -- damian stewart . @damiannz . damian(a)frey.co.nz frey . contemporary art . http://www.frey.co.nz

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Change CPU rules and another unrelated question
by Pierre Massat 16 Aug '10

16 Aug '10

Hi all, I have two questions: Is there a way i could tell my laptop to use a certain cpu rule from within Pd? In a previous post I was advised to change the cpu rules so as to prevent the processor from lowering it's frequency. I am slightly afraid of frying my laptop if the cpu rule is set on Performance all the time, so i m wondering if i could let Pd choose depending on what subpatch is on. Is there a way to do this using [shell]? The second question is about [hid]. I use a gamepad as a controller, and depending on when i plug it in [hid] does not always put it in the same rank. So my question is two-fold: how can i access what [hid] prints in the console, is there a way to deal with this as with a plain list? and what are the tools i could use to look up a certain word (i.e. the manufacturer of the gamepad) within this list? I m sorry, i guess i ought to split this post in two seperate topics, but it's late and i m sleepy. Thanks! Pierre

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ofxPd addon for openFrameworks
by Damian Stewart 16 Aug '10

16 Aug '10

hi all, i've created an ofxPd addon for openFrameworks, based on Bryan Summersett's pdlib. it uses the RtAudio interface compiled into openFrameworks to render Pd dsp blocks. limitations: 1. output only -- no audio input. 2. no MIDI. 3. no native messaging between host application and engine: messaging is currently done using OSC messages. m.r.peach's OSC and Networking externals are therefore included, which makes ofxPd a GPL project. more details + download/github link at: http://www.openframeworks.cc/forum/viewtopic.php?f=10&t=4444 cheers, damian -- damian stewart . @damiannz . damian(a)frey.co.nz frey . contemporary art . http://www.frey.co.nz

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Portuguese translation of the PD manual
by Gabi Thumé 16 Aug '10

16 Aug '10

Hello! We are interested to help the portuguese translation of the Floss Manuals of Pure Data. We are looking forward to help this comunity! In the translation interface has a option with various revisions, I suppose we need to translate the last revision (1.15), is it right? We just started editing the introduction, so can we just publish it? Thanks for now. cheers, GabrielaThume and IldomarCarvalho -- "A realidade é a fuga para aqueles que não têm coragem de enfrentar os sonhos" -- Slavoj Zizek Gabriela Salvador Thumé >> http://gabi.void.cc/ Bacharelanda em Ciência da Computação (UDESC - Joinville) Colméia - Grupo de Pesquisa em Software Livre MuSA - http://musa.cc

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a little music
by Claude Heiland-Allen 15 Aug '10

15 Aug '10

Hello there, I made a little music with Pd (vanilla + expr) yesterday (patch attached); audio for those not near a Pd is at: http://claudiusmaximus.goto10.org/feed/media/ClaudiusMaximus%20-%20Nom2%20%… I'm not 100% happy with the end result, but I almost never am, so I thought I'd send it along anyway. Maybe you can improve it - I had epic ideas but not enough motivation to realize my imaginings... Claude -- http://claudiusmaximus.goto10.org

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youtube2PDcrashes
by Nick Burge 14 Aug '10

14 Aug '10

Hello List, trying out the youtube2PD patch it all seems to work up to the point where I try to play back the transcoded video file. This causes pd to crash and exit. I'm on linux ubuntu 10.04 I can play the transcoded files back using another application like movie player or vlc, but Gem, which is included in my pd-extended (version 0.42.5) does not like them. I think I have all the dependencies installed (ffmpeg sox) Should I be tinkering with the ffmpeg settings in the youscrap.py file? Nick

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towards better diff [was: Portuguese translation of the PD manual]
by Pedro Lopes 14 Aug '10

14 Aug '10

>The day we have meaningful diffs, we can systematise the >evolution of pd help file translations, as mistakes are >corrected, as details are explained, and as new features are >added. Nicely pointed Mathieu, I agreed. Although it is not trivial, its definitely a matter that should be addressed to allow a "better" evolution of pd as a community/open driven language. How could pd's file structure could be easily changed to being more "diffable"? Have you organized any thoughts on that? (a quick self-mental exercise shows me that it would require major changes, or can we see conversely on a different "diff" process?) best regards, Pedro On Fri, Aug 13, 2010 at 11:39 PM, Mathieu Bouchard <matju(a)artengine.ca>wrote: > The day we have meaningful diffs, we can systematise the evolution of pd > help file translations, as mistakes are corrected, as details are explained, > and as new features are added. -- Pedro Lopes (ongoing MSc) contact: pedro.lopes(a)ist.utl.pt website: http://web.ist.utl.pt/Pedro.Lopes

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Start patch automatically on bootup with or without monitor (Ubuntu 10.04)
by Ingo Scherzinger 13 Aug '10

13 Aug '10

Hi there, is it possible to start a patch automatically on boot up containing both an audio and GEM patch either with or without a screen? I got a patch that contains some kind of gui working with GEM while the main audio patch doensn't need any graphics. All editing can be handled with a LCD remote unit. With the monitor connected everything works as expected. The problem is that Ubuntu (10.04) won't boot without any screen connected. I tried not to start X and fluxbox and go directly to the Pd patches. That didn't work! It still only boots (in text mode) with the monitor connected. Is there any way to detect if a monitor is hooked up and connect to some kind of a "virtual monitor" if not? Could VNC be used for that? (Though I don't really need or want a remote desktop) Thanx for any hints, Ingo

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Pd-list August 2010