Pd-list December 2004

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130 participants
218 discussions

Re: Using ov519 webcams (Eyetoy) with pdp/Gem (jpeg frames)
by Frank Barknecht 19 Dec '04

19 Dec '04

Hallo, Artem Baguinski hat gesagt: // Artem Baguinski wrote: > Should be doable faster - JPEG frames from your camera are decoded in > some YUV format then converted to RGB (by libjpeg) - AFAIK imlib > doesn't support other colourspaces then RGB. The RGB->YUV translation > could be done in hardware using Xv X11 extension (e.g. pdp could do > that for you). Not that I know how to wire the v2l device that > provides JPEG frames into pdp. But given you've found an example - it > should be copy and pastable ;-) I already tried a bit of copy and pasting in pdp (with breaking compression-less v4l support, as it's just for me for now), but I don't really find my way around in PDP yet. Some thing I encountered: I'm not sure, where I need to do all this, probably in the pdp_v4l_bang function? Also I don't know, what kind of data pdp expects to get in the end, that is, what format should the image be in and do I need to set headers and so on. I really don't know my way around pdp yet. :( So far I'm always getting libjpeg errors about "unknown markers" in the stream, it tries to decode... Ciao -- Frank Barknecht _ ______footils.org__

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compiling flext external
by Yvan Vander Sanden 18 Dec '04

18 Dec '04

Hi, I was trying to compile an example from the flext tutorial. I have worked with flext before using linux, but this is the first time i try to program in windows (using borland C++ builder 6.0). I've created a dll and want to load it as an external. This gives me the the error: load object: symbol "lib1_setup" not found I've googled a bit and read that i have to export the setup function if i use windows, so i've changed: static void lib_setup() { to extern "C" __declspec(dllexport) void lib_setup() { but now i get these messages: [Linker Error] Unresolved external '_post' referenced from C:\PD\TUTORIAL1\LIB.OBJ This is strange, because i know the path's to the library files are correct. Obviously my problem comes forth from having no programming experience for windows, but a little help would be nice here... Thanks, yvan vander sanden -- (\(\ (x.x) (")") This is the decapitated bunny virus. Please behead it in your sig, so it can spread.

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Using ov519 webcams (Eyetoy) with pdp/Gem (jpeg frames)
by Frank Barknecht 18 Dec '04

18 Dec '04

Hi, I took the plunge and tried to use an Eyetoy webcam with pdp or Gem on Linux. This is a quite cheap webcam with microphone using a ov519 chipset. The camera is supported on Linux by the experimental ov51x-driver from http://alpha.dyndns.org/ov511/download.html#ov51x which makes it available as a v4l-device. It can be opened just fine in both pix_video an pdp_v4l, however the picture coming from the device is not correctly decoded. The ov519 chip *only* supports standard jpeg-compression and it *always* outputs frames in jpeg-format. I have no idea, what format Gem or pdp normally expect, but from the small bar of noise I get in the top area of the capture screen I guess, it's definitely not jpeg. ;) The driver packags comes with lots of documentation (but partly in german) which also contains this quote - For OV519 cameras: Standard JPEG Compression is used. You need an application that supports this. Only the included test/getjpeg program does so far as I know. The getjpeg.c code to my eyes looks quite simple (at least it's very, very short), but I really don't understand all the v4l stuff yet and especially not, how this could fit into the architectures of Gem or pdp. Would someone with more understanding of this than I like to have a look into this? I'm willing to compile and test a lot. ;) Ciao -- Frank Barknecht _ ______footils.org__

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Re: [PD] Solitude - composition using data structures
by Hans-Christoph Steiner 18 Dec '04

18 Dec '04

Yup, I think so. I ran it on a dual G5 2.5 gig. I should work on some optimizations since it probably won't run on any machine that I own. I was using my university's G5. Are you running Windows or GNU/Linux? I've heard people have had better results with GNU/Linux. .hc On Dec 18, 2004, at 3:10 PM, Anton Woldhek wrote: > Hello Hans, > > The latest version does seem to start ok with my machine, but despite > that > it is a fairly decent machine (athlon xp 1600+, 512 mb ram) it doesn't > run > too smoothly, is the patch that heavy? > > Anton > ________________________________________________________________________ ____ Using ReBirth is like trying to play an 808 with a long stick. -David Zicarelli

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rradical paths problem
by Brad Kligerman 18 Dec '04

18 Dec '04

Hi all (once again) : I'm having a very basic problem getting rradical to function. I followed the _installation_ instructions setting up my paths. But when I open an example or tutorial (ex: pd/rradical/memento/tutorial/3-tut.pd) I get: > OSCprepend $1 >... couldn't create >originator.pd 11 0 61 1 (gatom->text) connection failed >originator.pd 33 0 61 0 (receive->text) connection failed >originator.pd 61 0 59 0 (text->outlet) connection failed >originator.pd 81 0 61 0 (message->text) connection failed In other words it can't find _originator.pd_ even though the directory is in my path. .pdrc = -mididev 1 -path /usr/lib/pd/externs:/usr/lib/pd/extra:/usr/lib/pd/gridflow:/usr/lib/pd/extra/pmpd:/usr/lib/pd/rradical/memento -lib Gem:pdp:pidip:gridflow:iemlib1:iemlib2:iem_t3_lib etc... It seems like a problem with my paths (when I check File>Paths... they are all listed). Is this a system problem or a rradical problem? Btw, I'm using RH9, pd 0.37-1 from Planet CCRMA... Any help with this seemingly stupid problem would be greatly appriciated since I'm about to start a big project and would like to integrate rradical. Thanks :brad

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Re: [PD] Solitude - composition using data structures
by Hans-Christoph Steiner 18 Dec '04

18 Dec '04

You don't need any externals to make it play, but you'll need [alternate] from MarkEx/Gem to use the key commands, and [shell] to use the recording function. I realize a forgot to include a couple generic objects that I wrote in Pd, so I have put up an updated version of the source: http://at.or.at/hans/solitude/ .hc On Dec 18, 2004, at 6:13 AM, Anton Woldhek wrote: > Hello Hans, > > Which external libraries would i need to play the solitude from source? > > Cheers > Anton > -----Original Message----- > From: pd-list-admin(a)iem.at [mailto:pd-list-admin@iem.at] On Behalf Of > Hans-Christoph Steiner > Sent: zaterdag 18 december 2004 6:47 > To: pd-announce(a)iem.kug.ac.at; pd-list List > Subject: [PD] Solitude - composition using data structures > > > This is my first composition using Pd's data structures, and I found > that I enjoyed the process quite a bit, once I got the patch debugged. > The experience was a good combination of visual editing with the mouse > and text editing with the keyboard. The visual representation worked > well for composition in this style. By biggest problem was finding a > way to represent in the score all of the things that I wanted to > control. Since I wanted to have the score generate the piece, I did > not add a couple features, like pitch shifting and voice allocation > control, which I would have liked to have. > > You can download the mp3, see the score, and download the source code > here: > > http://at.or.at/hans/solitude/ > > Remixes would be fun. The code is released under GNU GPL, the mp3 > under CC Attribution-ShareAlike. > > .hc > _______________________________________________________________________ > _____ > > "Information wants to be free." > -Stewart Brand > http://at.or.at/hans/

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PiDiP pdp_live~.o error 1
by Ian Smith-Heisters 18 Dec '04

18 Dec '04

Hi Yves, All, Trying to compile pidip and got the first error. I don't need pdp_live~ so I went into the modules/Makefile and commented out pdp_live~ and tried "make clean" "make". This exited with the second error. I did a search in the archives and came up with this: http://iem.at/mailinglists/pd-list/2004-11/023867.html so I went to http://libquicktime.sourceforge.net/ and got libquicktime 0.9.3-1 from there, apt-removed the CCRMA lqt and installed this one, which had no effect. Any thoughts? Thanks, Ian Version info: PD: CVS 0_38_stable branch PIDIP: .12.17 source from Yves' page. FFMPEG: cvs-2004-11-10 from the link on Yves' page PDP: 0.12.4 from http://zwizwa.fartit.com/pd/pdp/. LIBTHEORA: v1.0 alpha3 via rpm from the theora site. ImageMagick and imlib2 are from the PlanetCCRMA repositories. PlanetCCRMA Fedora Core 2 2.6.7-SMP. ERROR 1: /libavcodec -I/home/ian/src/ffmpeg-cvs-2004-11-10/libavformat -o pdp_live~.o -c pdp_live~.c pdp_live~.c: In function `pdp_live_frame_cold': pdp_live~.c:199: error: too few arguments to function `av_seek_frame' pdp_live~.c: In function `pdp_live_decode_packet': pdp_live~.c:245: error: too few arguments to function `av_seek_frame' pdp_live~.c:286: warning: passing arg 3 of `avcodec_decode_audio' from incompatible pointer type pdp_live~.c:353: warning: passing arg 3 of `avcodec_decode_video' from incompatible pointer type pdp_live~.c: In function `pdp_live_perform': pdp_live~.c:822: warning: passing arg 2 of `pdp_packet_pass_if_valid' from incompatible pointer type make[1]: *** [pdp_live~.o] Error 1 make[1]: Leaving directory `/home/ian/src/pidip-0.12.17/modules' make: *** [pdp_pidip_all] Error 2 $ ERROR 2: z2 -lxml2 -lz -lpthread -lm -L/usr/lib -L/usr/X11R6/lib -L/usr/lib -L/usr/lib /usr/bin/ld: cannot find -lexif collect2: ld returned 1 exit status make: *** [pidip.pd_linux] Error 1 $

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envgen + gop = problems
by Bartlomiej Bazior 18 Dec '04

18 Dec '04

Hi, I've got some serious problems when using envgen in abstractions, where "graph on parent" is turned on. Every time when I "call" such an abstraction and try to move it on the "main" canvas, I end up with envgen's stuck in one place (other objects move as expected). Every attempt to remove such an abstract from patch causes pd to crash. Did anyone experienced such a behaviour or I'm the only ("lucky") one? Are there any workarounds to avoid this? Maybe there exist a similar external? cheers, Bart

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mask videos
by Andrei R. Thomaz 18 Dec '04

18 Dec '04

is it possible to mask videos with GEM ? I tried pix_mask, but it doesn't work with videos (at least, with .MOV videos in linux). bye, andrei -- RGB Design Digital www.rgbdesigndigital.com.br andreithomaz(a)bol.com.br / andrei(a)rgbdesigndigital.com.br / (51) 92067436

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Re: [PD] incomplete GUI rendering
by Hans-Christoph Steiner 18 Dec '04

18 Dec '04

Oh sorry, I guess I am working on old info... .hc On Dec 17, 2004, at 1:41 AM, Yves Degoyon wrote: > mm, sorry, i've tested with test13 on linux, > and it worked, so what platform, what pd ? > > salu2, > sevy > > Hans-Christoph Steiner wrote: > >> The "unauthorized" GUI objects don't work with 0.38. >> >> .hc >> >> On Tue, 14 Dec 2004, Ivan Franco wrote: >> >> >>> This behavior also broke one of my main performance patches. >>> It was designed around Yves cooled~ and playlist. >>> I had to remove these using a text editor in order to be able to >>> reopen >>> the >>> patch, since it crashed PD constantly. >>> Now I can load it but the GUI also doesn't render fully. >>> Consecutively reopening abstractions by clicking them causes a crash >>> too. >>> >>> Just simply loading cooled~ causes a complete crash. >>> >>> I'm using Hans latest OSX installer (0.38-0test4HCS). >>> >>> Any hints?? >>> >>> Thanks all >>> I. >>> >>> On Dec 14, 2004, at 5:29 AM, pd-list-request(a)iem.at wrote: >>> >>> >>>>> 1. use yves patch of a threaded gui ... included in devel_0_37 >>>>> 2. test miller's approach of limiting the size of messages sent to >>>>> the >>>>> gui, implemented in 0.38 ... works fine for me ... >>>>> >>>> is this gui packet-size limit the reason you have to often open >>>> patches 2 or 3 times for them to actually draw all the way? i cant >>>> vouch for anything earlier than 0.36 but it happened ocasionally >>>> then, >>>> happened more often with impd 0.37 perhaps due to more GUI >>>> stuff...and >>>> happens even more in 0.38... >>>> >>>> http://replic.net/~ix/pd/GrO/missing.PNG >>>> >>>> my current strategy is open a small patch first, until everything >>>> settles down, then open the larger ones. many times however, the >>>> window doesnt even draw, rather than simply missing some stuff which >>>> minimizing and maximizing can sometimes fix.. >>>> >>>> can i just bump the packet size limit to 40,000. are there perhaps >>>> some packet size limit patches that havent made it into MAIN that i >>>> can apply, perhaps from devel or impd? >>>> >>>> carmen >>>> >>>> >>>> >>> _______________________________________________ >>> PD-list(a)iem.at mailing list >>> UNSUBSCRIBE and account-management -> >>> http://iem.at/cgi-bin/mailman/listinfo/pd-list >>> >>> >> >> zen >> \ >> \ >> \[D[D[D[D >> >> >> _______________________________________________ >> PD-list(a)iem.at mailing list >> UNSUBSCRIBE and account-management -> >> http://iem.at/cgi-bin/mailman/listinfo/pd-list >> >> >> >> ________________________________________________________________________ ____ "[W]e have invented the technology to eliminate scarcity, but we are deliberately throwing it away to benefit those who profit from scarcity." -John Gilmore

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Pd-list December 2004