Pd-list August 2013

pd-list@lists.iem.at

80 participants
107 discussions

reverse kickstarter update: omgponies
by Jonathan Wilkes 26 Aug '13

26 Aug '13

Hi list, I've got some updates to [canvasinfo], [pdinfo], and [classinfo] that I'll put in a demo build either tomorrow or the next day. I also added a new data structure class with two creators: [drawimage] - draw an image on a canvas [drawsprite] - draw a sprite on a canvas The [drawsprite] object takes the name of a directory containing an image sequence and loads the images into tcl/tk memory when the object gets created. A ds float field can then be associated with that image so that when you change its value it jumps to that image in the sequence. I used the code from [drawnumber], so you can even animate the sprite by clicking and dragging on the image. Since all the images are preloaded into tcl/tk, animating them is fairly straightforward-- tk just clears the old image and copies the new one from one of the images it has in memory. Of course the upshot is fairly obvious-- we can finally have ponies running around inside Pure Data patches. E.g., thanks to this: http://friendshipismagic.smackjeeves.com/comics/1223051/female-pony-base-sp… I can now do this: https://puredata.info/Members/jancsika/omgponies.webm/view I just added the "realtime code selection" as an afterthought using [cnv] objects. However, it would be neat to be able to group code and highlight it programmatically as the data is flowing. -Jonathan

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Re: [PD] [OT] get video stream with pdgst from XIMEA camera
by IOhannes m zmölnig 26 Aug '13

26 Aug '13

On 08/22/13 18:05, Jack wrote: > When I compile streamViewer.cpp which contains the gstreamer pipe > finishing by : v4l2sink device=/dev/video2, i get no error. > And after : > $ ./streamViewer > the application runs as expected. you might try to create a slightly more complex pipeline, that outputs to both v4l2sink *and* autovideosink (so you can see whether the pipeline is running). > > In Pd, i open the help patch about [pix_video] and send the message > [driver v4l2, device 2( to [pix_video]. > I expect to get the stream, but i get (in the pd console) : > Cannot open '/dev/video2': 2, Aucun fichier ou dossier de ce type > v4l: failed opening device: '/dev/video2' > > So, it seems the gstreamer pipe is wrong OR the streamViewer.cpp is > wrong after the modification. > How can i solve this problem ? try raising the verbosity of streamViewer, to see what it really does: ./streamViewer --gst-debug-level=4 check what happens to the videodevice when streamViewer should write to it. try: v4l2-ctl --all -d /dev/video2 to see the mode of the device. also check /sys/devices/virtual/video4linux/video2/format whether the format has been set correctly. fgmasdr IOhannes

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Re: [PD] libPD : " unknown audio API specified " - iOS or PD error ?
by Dan Wilcox 26 Aug '13

26 Aug '13

Most likely, you haven't specified the dummy audio api via compiler defines. See https://github.com/libpd/libpd/wiki/libpd#build-settings On Aug 26, 2013, at 6:00 AM, pd-list-request(a)iem.at wrote: > From: Фывапр Олджэвич <tofuckof(a)inbox.ru> > Subject: [PD] libPD : " unknown audio API specified " - iOS or PD error ? > Date: August 26, 2013 4:32:18 AM EDT > To: pd-list(a)iem.at <pd-list(a)iem.at>, Hans-Christoph Steiner <hans(a)at.or.at> > Reply-To: Фывапр Олджэвич <tofuckof(a)inbox.ru> > > > Hi List and LibPD developers ! > > Testing an iOS app with LibPD we get: " unknown audio API specified " > > Is it a PD patch problem or xCode ? or what can it be ? the Pd-patch works well in Vanilla. > > any advice please > > thanks ! -------- Dan Wilcox @danomatika danomatika.com robotcowboy.com

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libPD : " unknown audio API specified " - iOS or PD error ?
by Фывапр Олджэвич 26 Aug '13

26 Aug '13

Hi List and LibPD developers ! Testing an iOS app with LibPD we get: " unknown audio API specified " Is it a PD patch problem or xCode ? or what can it be ? the Pd-patch works well in Vanilla. any advice please thanks !

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Pd to Raspberry Pi SPI
by Dan Nigrin 26 Aug '13

26 Aug '13

Background: I'm very well versed in Max, but still a newbie in Pd. I'm working on a project to that will use Pd running on a Raspberry Pi, and that will generate control voltages using DACs (ideally something like a MCP4922 or similar, http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en020399 ). I know about Miller's gpio external, found here: http://crca.ucsd.edu/~msp/syllabi/206.13w/index.htm , but it does not do any of the SPI interfacing, which is the way that will need to interface with the DACs. Is there any possibility (Miller or anyone smarter than I am on this stuff) to extend the gpio external to include SPI interfacing? Thanks in advance, Dan -- Dan Nigrin / Defective Records / http://defectiverecords.com CycliC, M185 & Klee Sequencers / MC-4 & MC-202 Hack / Audio Plugin Player / General MIDI Player / Major Malfunction Jack OS X / http://jackosx.com

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Re: [PD] [PD-announce] pd 0.45-0 released
by Fero Kiraly 24 Aug '13

24 Aug '13

thank you Miller ! for archers updated PKGBUILD in AUR. simply run: yaourt -S pd-vanilla cheers fero

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Pd Extended zip file from downloads page, network install issues
by Richie Cyngler 23 Aug '13

23 Aug '13

Dear List, The "technology" department at the learning institution I work at have agreed to install Pd Extended. They used the zip file (not the install) on puredata.info to do a network install (not something I know very much about). Pd Extended loads and runs core audio functionality fine but libraries appear to be missing, no GEM objects I tested work, neither does [cup] Does anyone know if there is a way to get a network install of Pd Extended to load all the libraries automatically? Thanks very much -- Richie Cyngler www.glitchpop.com

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midirealtimein error message, is it still needed?
by hard off 22 Aug '13

22 Aug '13

was just messing round with [midirealtimein] on linux. no problem it seems. my friend in berlin got it going fine on os x. so, is there still any need for the 'error: midirealtimein only works under MSW' message that is sent to the console upon load?

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taxinomy, website or more
by Olivier Baudry 22 Aug '13

22 Aug '13

Dear all I would like to make a few comments that I think are important to the community puredata, this concerns the puredata website _ Mailing list is very nice to read some topics. However it seems to me that a forum with a search engine is especially useful to make queries for topics. _ It seems to me that it would be good to have a tab Do you know how? spend on mini tutorials powered by community contributors (academic or not) _ ensuite a tab with puredata projects in the context of artistic projects _ a libraries tab divided into two categories of : _ librairies abstactions, _ libraries of externals _ A taxonomy and site-specific model of semantic data to facilitate research and to maintain and develop the software that is used PureData

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[OT] get video stream with pdgst from XIMEA camera
by Jack 22 Aug '13

22 Aug '13

Hello, I would like to get the stream from a XIMEA camera using gstreamer. There is an example (in the XIMEA Linux Software Package) that use gstreamer to get the stream. This example works fine on Ubuntu 12.04 (with kernel 3.8) and Ubuntu 13.04. But i would like to get the stream with v4l2sink/v4l2src from gstreamer with pdgst (or better, from [pix_video] ??? :). My skills in C++ are bad and if someone can help me to modify the source code (attached, dependencies : GTK+-2 and GStreamer-0.10) to make it work only with v4l2src, it would be very nice. The XIMEA Linux Software Package can be downloaded from : http://www.ximea.com/support/wiki/apis/XIMEA_Linux_Software_Package Thanx. ++ Jack

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Pd-list August 2013