Pd-list June 2005

pd-list@lists.iem.at

126 participants
218 discussions

Re: [PD] very bad GEM performance
by Georg Holzmann 17 Jun '05

17 Jun '05

Hallo! > Do you really have DRI enabled? You can check with > $ glxinfo | grep direct ~$ glxinfo | grep direct Xlib: extension "XFree86-DRI" missing on display ":0.0". direct rendering: No OpenGL renderer string: Mesa GLX Indirect How can I enable it? Thanks, LG Georg -- Geschenkt: 3 Monate GMX ProMail gratis + 3 Ausgaben stern gratis ++ Jetzt anmelden & testen ++ http://www.gmx.net/de/go/promail ++

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Re: [PD] Re: [PD-announce] pix to pdp bridge
by Georg Holzmann 17 Jun '05

17 Jun '05

Hallo! > Just a small comment: why call it [pix_2pdp], why not just [pix2pdp] > like [gem2pdp], [pdp2gem], [cart2pol], etc. I also thought about that, but all pix objects are starting with pix_* - so I called it pix_2pdp (like pix_2grey, ...). LG Georg -- Weitersagen: GMX DSL-Flatrates mit Tempo-Garantie! Ab 4,99 Euro/Monat: http://www.gmx.net/de/go/dsl

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netsend question
by nico bats 17 Jun '05

17 Jun '05

hi i'm using [netsend] to communicate with tcl but i've got message like that in pd console: netsend blocked 140 msec does it mean that the tcl proc is blocking pd? best regards nico

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very bad GEM performance
by Georg Holzmann 17 Jun '05

17 Jun '05

Hallo IOhannes, others! Yesterday I compiled the new GEM from cvs with the following configure options: ./configure --disable-ARB Now I have a very bad performance (which I haven't had before): e.g. if I play a simple movie, the output of top says: 2000 root 6 -10 92624 20m 68m S 83.0 4.1 1:06.93 XFree86 4687 holzi 15 0 50036 11m 26m S 2.3 2.4 0:00.90 pd 2233 holzi 15 0 29892 15m 26m S 0.3 3.1 0:01.75 kdeinit So XFree86 uses 83 % cpu (and sometimes much more) - but only if I turn on rendering. I also get the following error in the shell: Xlib: extension "XFree86-DRI" missing on display ":0.0". Can I use some other configure options, so that the performance is not that bad anymore ? Thanks, LG Georg

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Re: [PD] pix to pdp bridge
by Georg Holzmann 17 Jun '05

17 Jun '05

Hallo! Changes are in cvs now. Maybe someone can remove the open patches from sourceforge (the configure script and gem2pdp.cpp) ? I also checked them in ... LG Georg

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Re: [PD] pix to pdp bridge
by Georg Holzmann 17 Jun '05

17 Jun '05

Hallo! > ok, you can commit all the chenges in the CVS, > but i don't have much time to do it > or even to check... the south is calling.... okay - I'll commit everything in CVS, also the changes from IOhannes! Patrick Pagano schrieb: > can you get it working for OS X? Yes - it will also compile on OS X, but I have no mac. LG Georg

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Re: [PD] pix to pdp bridge
by ydegoyon＠free.fr 17 Jun '05

17 Jun '05

hola, jejeje, congratulations ... !! especially, for being able to use firewire with pdp now ( which i can't test myself )... ok, you can commit all the changes in the CVS, but i don't have much time to do it or even to check... the south is calling.... suerte, sevy Georg Holzmann wrote: > Hallo list! > > A maybe useful external for some Gem/PDP users: > > pix_2pdp captures the contents of a Gem pix and transforms it to a PDP packet with almost no cpu power. > So it's possible to convert from Gem to PDP to Gem to PDP to ... if you use the Gem pix objects! > > So what can you do with it? > > * use pix_video/pix_2pdp for firewire input in PDP > * use pix_2pdp/pdp_rec~ to record Gem pixes > * maybe switch between Gem and PDP all the time > * ... > > pix_2pdp is based on code of gem2pdp by Yves Degoyon and is (should be) part of the gem2pdp package. > Many thanks to IOhannes M Zmölnig! > > For more information how to use it look at the help patch. > > You can get the code and linux binaries here: http://grh.mur.at/software/pix2pdp.html > > LG > Georg > > PS: @Yves: > Can I (or you) check in the code into /externals/gem2pdp in CVS and could you also apply the 2 patches from IOhannes (on sourceforge), because otherwise it won't compile ... (or should I check in all the stuff?) > > _______________________________________________ > PD-list(a)iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list > >

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[GEM] pix_resize eating RAM
by Davide Morelli 17 Jun '05

17 Jun '05

Hi list, I am trying to resize a live video feed to a very small picture (16x12), extract a list of rgba values from this image and pass the list to ann_mlp. On my system the pix_resize object keeps eating RAM over and over every time I pass it a pix. (see the attached patch) Maybe either the unsigned char * resizedData or the old image.data should be freed somewhere? WinXP GEM 0.90 (compiled Aug 3 2004) Pd 0.38-3 Btw: in a old post (http://lists.puredata.info/pipermail/pd-list/2005-04/027626.html) I've read that pix_resize can be used with 2 args: [pix_resize X Y] to get an image Y height and X width But in the example patch attached it doesn't seem to work, and looking at the source code (pix_resize.cpp) I don't see how pix_resize could do that. ... Is there a way to reduce an image size? E.g. from 320x240 to 16x12 pixels? Thank you, Davide.

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weird opening problem on OSX
by altern 16 Jun '05

16 Jun '05

hi when i open a file first time in a session with PD it takes few seconds (~10) to open the file. If I double click on a .pd file, PD runs but the file doesnt get opened then if i do open from the menu a file it takes as well around 10 secs and both files get opened at the same time. i have downloaded new version of PD (Pd-0.38-4-extended-RC1.app) but the behaviour is the same, so i guess it should be something caused by the system. Does anyone knows what could it be? It is a bit annoying. thanks -- enrike

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[half OT] laptop processors for rt sound
by julien.breval＠tremplin-utc.net 16 Jun '05

16 Jun '05

hello just planning on buying a generic laptop pc soon, for realtime music applications under linux (pd, ardour) and under windows xp (max/msp), but I need some information / experiences about it (on the internet the main topic I found is this eternal amd/intel debate and I don't really care about this) regarding the cpu, there are two main technologies - desktop processors adapted to notebooks (for example, intel mobile pentium 4 or amd mobile athlon xp): these ones give you the same performance as a desktop computer, but you shouldn't unplug the computer from the external energy source for too long - mobile-oriented technologies (intel centrino/pentium M, amd sempron): focus on mobility (low consumption, embedded WLAN, less heat hence less fan noise, etc) but almost nothing is said about their performance compared to the above category; as these processors work differently (other instructions, other architecture), I would like to know if any of you use such machines for making music in realtime, because I didn't find anything serious about it on the internet So the question is not "amd or intel ?" but "sempron/centrino or mobile-athlon/- pentium4 ?" For a given price, I can't make any compromise on calculus performance and I don't plan on using the laptop on batteries too much (anyway my sound card needs external power), so maybe the first category is the best for me, but as there are more and more second-category laptops, I certainly have to take them in account too. Most probably I will have to choose between amd sempron, amd mobile athlon xp, intel mobile pentium 4 and intel pentium M / centrino. I don't need a huge cpu power but I don't want this laptop to be less performant/reliable than my current 2 years old 2.4 GHz shuttle desktop computer. notes: I fear 64-bit will be too expensive so I won't focus on it. Also, I don't see clearly the difference between a "mobile xxx processor" and its "xxx processor for notebooks equivalent that you can find in both amd and intel ranges :) thanks for your help, -j

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Pd-list June 2005