Pd-list January 2006

pd-list@lists.iem.at

122 participants
208 discussions

Re: [PD] dvb-s card and Gem separator pb
by august 07 Feb '06

07 Feb '06

vincent rioux say: > hi Ben, > > B. Bogart wrote: > > >Hey Vincent, > > > >does the dvds card give you a V4L2 interface or some other thing that is > >independant? > > well, as far as i understood latest drivers from linuxtv are designed to > merge v4l and dvb interfaces. > i found that kaffeine will look for dvb device in sth like > /video/dvb/... (i don't have the computer in front of me right now so i > am pretty sure the path is a bit wrong). btw, using kaffeine is nice > because it can scan automatically satellite channels... > > xawtv seems to recognize the dvb device just like anyother v4l device. > even Gem e.g. seems to recognize the dvb device. > but in both cases (xawtv and Gem) i can't get any image... > hey. I wrote a little DVB reader and channel switcher this summer. As far as I know, once you have the drivers up and running, you will have some devices created under /dev/dvb/adapter0 If you have a decent card with hardware MPEG2 decoding, you will have an extra device there. If you have an el cheapo card like I do, without hardware decoding, you just get the mpeg2 stream under /dev/dvb/adapter0/dvr0 The first device I mentioned that is the decodec MPEG2 stream should be able to be opened like a v4l device (not sure about this though). The second device I mentioned, /dev/dvb/adapter0/dvr0, should be able to be opened as a regular mpeg2 file. Either way, you should be able to get it somehow into GEM or PDP. The difficult part will probably be to get your channels list and to switch channels without loosing sync. If you want some half-assed C++ code, let me know. best -august. PS: I also found this link helpful: http://en.wikipedia.org/wiki/DVB ------------------- http://aug.ment.org

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dealing with arguments and inlets
by Hans-Christoph Steiner 05 Feb '06

05 Feb '06

I have written some classes for handling arguments when writing classes in Pd. They are [float_argument], [symbol_argument], and [any_argument]. Currently, I am thinking in general, inlets should be matched to arguments and vice versa, so these objects all have a "convenience" right inlet, to attach the [inlet] to so that the data all comes from the [*_argument] object. To use them, you add the argument you want it to handle like this: [float_argument $1] If you want a default value for when none is specified, you would do it like this: [float_argument $2 234] [symbol_argument $3 default] [any_argument $9 asdf] [any_argument $5 444] My goal is to make these a standard way of handling arguments when writing classes in Pd. What do y'all think? Also, I am trying to think of a library name in which these would belong. foundation? support? core? patching? language? .hc ________________________________________________________________________ ____ "If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of everyone, and the receiver cannot dispossess himself of it." - Thomas Jefferson

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Re: [PD] dealing with arguments and inlets
by Stefan Turner 05 Feb '06

05 Feb '06

> Message: 8 > Date: Mon, 30 Jan 2006 19:03:09 -0500 > From: Hans-Christoph Steiner <hans(a)eds.org> > Subject: [PD] dealing with arguments and inlets > To: PD-List List <pd-list(a)iem.at> > Message-ID: <f800a0b7f1f7e6ccf418411ac1afacee(a)eds.org> > Content-Type: text/plain; charset="us-ascii" > > > I have written some classes for handling arguments when writing classes > in Pd. They are [float_argument], [symbol_argument], and > [any_argument]. Currently, I am thinking in general, inlets should be > matched to arguments and vice versa, so these objects all have a > "convenience" right inlet, to attach the [inlet] to so that the data > all comes from the [*_argument] object. > > To use them, you add the argument you want it to handle like this: > > [float_argument $1] > > If you want a default value for when none is specified, you would do it > like this: > > [float_argument $2 234] > [symbol_argument $3 default] > [any_argument $9 asdf] > [any_argument $5 444] > > My goal is to make these a standard way of handling arguments when > writing classes in Pd. What do y'all think? This is a very cool idea. Virtually all my abstractions have an inlet and ii (from iem) for each argument: would definitely be better to have both in one. Might it be better to go all the way and have these as externals which function as [inlet], but also support defaults as you've said? Obviously then it would be cool to keep the naming argument of [inlet], which appears when you hover. Or alternatively to extend the built-in inlet to give the functionality you've said, while just behaving as currently if the extra arguments aren't given, e.g.: [inlet] - as current [inlet name] - as current, with a name [inlet name $1] - as current, but at loadbang-time output $1 [inlet name $1 123] - as current, but at loadbang-time output $1, or 123 if $1 not specified Don't know how you'd handle the separation of floats, symbols and anys then though...maybe add finlet and sinlet...?? Cheers Stefan Turner ___________________________________________________________ Yahoo! Photos Â NEW, now offering a quality print service from just 8p a photo http://uk.photos.yahoo.com

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IRCAM's FTM on Pd?
by Hans-Christoph Steiner 03 Feb '06

03 Feb '06

Anyone every get IRCAM's FTM or MnM running with Pd? In their papers, they say it runs on Pd, but I can't see any documentation on where to get the Pd version or how to build the Pd version. http://sourceforge.net/projects/ftm/ .hc ________________________________________________________________________ ____ "Terrorism is not an enemy. It cannot be defeated. It's a tactic. It's about as sensible to say we declare war on night attacks and expect we're going to win that war. We're not going to win the war on terrorism." - retired U.S. Army general, William Odom

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compiling pd-0.39-2 on ubuntu
by martin 03 Feb '06

03 Feb '06

hi list, i want to try out netpd. doesn-t work with the packaged pd (0.38-4) on ubuntu. _chat.pd just gives a pd-window full of "open:"-s. sooo it seems i have to compile myself...not so easy on ubuntu as it seems. anybody has a clue (error is below)? root@pbook:/home/martin/pd39/pd-0.39-2/src# ./configure checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking for a BSD-compatible install... /usr/bin/install -c checking whether make sets $(MAKE)... yes checking how to run the C preprocessor... gcc -E checking for an ANSI C-conforming const... yes checking for egrep... grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking for pid_t... yes checking for size_t... yes checking whether time.h and sys/time.h may both be included... yes checking for ANSI C header files... (cached) yes checking fcntl.h usability... yes checking fcntl.h presence... yes checking for fcntl.h... yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking malloc.h usability... yes checking malloc.h presence... yes checking for malloc.h... yes checking sys/ioctl.h usability... yes checking sys/ioctl.h presence... yes checking for sys/ioctl.h... yes checking sys/time.h usability... yes checking sys/time.h presence... yes checking for sys/time.h... yes checking for unistd.h... (cached) yes checking bstring.h usability... no checking bstring.h presence... no checking for bstring.h... no checking whether gcc needs -traditional... no checking return type of signal handlers... void checking for vprintf... yes checking for _doprnt... no checking for gettimeofday... yes checking for select... yes checking for socket... yes checking for strerror... yes checking for working alloca.h... yes checking for alloca... yes checking for dlopen in -ldl... yes checking for sin in -lffm... no checking for sin in -lm... yes checking for pthread_create in -lpthread... yes checking tcl.h usability... no checking tcl.h presence... no checking for tcl.h... no checking tcl8.7/tcl.h usability... no checking tcl8.7/tcl.h presence... no checking for tcl8.7/tcl.h... no checking tcl8.6/tcl.h usability... no checking tcl8.6/tcl.h presence... no checking for tcl8.6/tcl.h... no checking tcl8.5/tcl.h usability... no checking tcl8.5/tcl.h presence... no checking for tcl8.5/tcl.h... no checking tcl8.4/tcl.h usability... yes checking tcl8.4/tcl.h presence... yes checking for tcl8.4/tcl.h... yes checking for main in -ltcl8.7... no checking for main in -ltcl8.6... no checking for main in -ltcl8.5... no checking for main in -ltcl8.4... yes checking for main in -ltk8.7... no checking for main in -ltk8.6... no checking for main in -ltk8.5... no checking for main in -ltk8.4... yes .................... alsa= yes checking for snd_pcm_info in -lasound... yes OPT_CFLAGS --------------- -O6 -funroll-loops -fomit-frame-pointer configure: creating ./config.status config.status: creating makefile root@pbook:/home/martin/pd39/pd-0.39-2/src# make install cc -I. -g -O2 -DPD -Wall -W -Wstrict-prototypes -Wno-unused -Wno-parentheses -Wno-switch -O6 -funroll-loops -fomit-frame-pointer -DDL_OPEN -DPA_USE_OSS -DPA_LITTLE_ENDIAN -DUNIX -DUNISTD -DUSEAPI_OSS -I../portaudio/pa_common -I../portaudio/pablio -I../portmidi/pm_common -I../portmidi/pm_linux -fno-strict-aliasing -DPA_USE_ALSA -DUSEAPI_ALSA -M g_canvas.c g_graph.c g_text.c g_rtext.c g_array.c g_template.c g_io.c g_scalar.c g_traversal.c g_guiconnect.c g_readwrite.c g_editor.c g_all_guis.c g_bang.c g_hdial.c g_hslider.c g_mycanvas.c g_numbox.c g_toggle.c g_vdial.c g_vslider.c g_vumeter.c m_pd.c m_class.c m_obj.c m_atom.c m_memory.c m_binbuf.c m_conf.c m_glob.c m_sched.c s_main.c s_inter.c s_file.c s_print.c s_loader.c s_path.c s_entry.c s_audio.c s_midi.c d_ugen.c d_ctl.c d_arithmetic.c d_osc.c d_filter.c d_dac.c d_misc.c d_math.c d_fft.c d_mayer_fft.c d_fftroutine.c d_array.c d_global.c d_delay.c d_resample.c x_arithmetic.c x_connective.c x_interface.c x_midi.c x_misc.c x_time.c x_acoustics.c x_net.c x_qlist.c x_gui.c x_list.c d_soundfile.c s_midi_oss.c s_audio_oss.c s_audio_alsa.c s_audio_alsamm.c s_midi_alsa.c > makefile.dependencies cd ../obj; cc -Wl,-export-dynamic -lasound -o ../bin/pd g_canvas.o g_graph.o g_text.o g_rtext.o g_array.o g_template.o g_io.o g_scalar.o g_traversal.o g_guiconnect.o g_readwrite.o g_editor.o g_all_guis.o g_bang.o g_hdial.o g_hslider.o g_mycanvas.o g_numbox.o g_toggle.o g_vdial.o g_vslider.o g_vumeter.o m_pd.o m_class.o m_obj.o m_atom.o m_memory.o m_binbuf.o m_conf.o m_glob.o m_sched.o s_main.o s_inter.o s_file.o s_print.o s_loader.o s_path.o s_entry.o s_audio.o s_midi.o d_ugen.o d_ctl.o d_arithmetic.o d_osc.o d_filter.o d_dac.o d_misc.o d_math.o d_fft.o d_mayer_fft.o d_fftroutine.o d_array.o d_global.o d_delay.o d_resample.o x_arithmetic.o x_connective.o x_interface.o x_midi.o x_misc.o x_time.o x_acoustics.o x_net.o x_qlist.o x_gui.o x_list.o d_soundfile.o s_midi_oss.o s_audio_oss.o s_audio_alsa.o s_audio_alsamm.o s_midi_alsa.o \ -ldl -lm -lpthread -lasound /usr/bin/ld: cannot open output file ../bin/pd: No such file or directory collect2: ld returned 1 exit status make: *** [../bin/pd] Error 1 thanx for getting so far... martin

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GEM problem on nVidia
by Cesare Marilungo 01 Feb '06

01 Feb '06

Hi, I've just started experimenting with GEM. I compiled Gem and pd from source on Slackware 10.2 with kernel 2.6.13 and the nVidia binary driver. The problem is that creating windows works just the first time. When I destroy it the window closes properly, but when I recreate it the windows remains black, and I get this infamous message in the log file: NVRM: Xid: 6, PE0002 0470 c11daf4b 000bf858 00000000 00000003 I don't have any other problem using opengl on this setup, other than Gem. Before digging into the code myself I thought to ask here. It seems that the code that disposes the window fails to free some resource. Suggestions? Thanks in advance, c. -- www.cesaremarilungo.com

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Re: [PD-announce] A new version of FFTease is now available for Pd
by Hans-Christoph Steiner 01 Feb '06

01 Feb '06

What are the rules about distributing this? Pd from Miller is released with a BSD license, so that's easy. But Pd-extended is released under the GNU GPL because most of the code in CVS is GPL'd, so that makes things more complicated. But it would be quite nice to be able to distribute FFTease built-in to Pd-extended. .hc On Jan 31, 2006, at 3:01 PM, Eric Lyon wrote: > FFTease is a collection of externals that do various kinds of spectral > sound processing - cross synthesis, spectral sampling, spectral > shaping, spectral tuning, spectral reanimation, and so forth. The > externals were originally designed for MaxMSP by Christopher Penrose > and myself. The new version (FFTease 2.5) is designed for both Pd and > MaxMSP. It has been compiled for Linux, Mac OSX, and Windows XP. > > FFTease 2.5 is available at: > > http://www.arts.manchester.ac.uk/subjectareas/music/academicstaff/ > ericlyon/software/fftease/ > > or > > http://tinyurl.com/83rj2 > > Best, > > Eric > > p.s. For various reasons the source code is not posted at the above > site, but anyone who is interested is welcome to contact me offline. > > _______________________________________________ > PD-announce mailing list > PD-announce(a)iem.at > http://lists.puredata.info/listinfo/pd-announce > ________________________________________________________________________ ____ I spent 33 years and four months in active military service and during that period I spent most of my time as a high class muscle man for Big Business, for Wall Street and the bankers. - General Smedley Butler

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PD in mexico
by ADRIAN GOYA 31 Jan '06

31 Jan '06

Hello, I currently use PD/GEM for interactive video in theater and would like to be in contact with other PD users in Mexico, specially Mexico City. My interest with this is to start (join?) a local community and help the use of PD to grow in Mexico. It's probably best if you contact me off-list, to not bother the list with such local stuff. Good luck, adrian goya adrian.goya at gmail.com

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writing to log files
by chris clepper 31 Jan '06

31 Jan '06

I would like to write various output to a log file in the same manner as the print object. Does such an object exist?

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Mandlebrot Landscape Generator ?
by day 5 31 Jan '06

31 Jan '06

Hi List, I was wondering in what ways is it possible to calculate Mandlebrot sets using Gem/Pd/PDP/GridFlow/etc/etc ? Ideally I'm interested in any techniques anyone could share on the basic idea perhaps in Gem - pedagogy, in this case prevails over a simple ad-hoc solution! TIA ./d5

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Pd-list January 2006