[PlanetCCRMA] Fedora Core 5 audio process...

[blindman jones]

Thank you!

I did not patch the kernel, I recompiled only changing to the
Preemptible Kernel (Low-Latency Desktop)...  I got both JACK &
qjackctl from CVS and they compiled and installed... not being the
brightest bulb it took me a few minutes to realize FC5 does not have
/usr/local/lib in /etc/ld.so.conf (doh!) but once I added it and ran
/sbin/ldconfig qjackctl started right up and I got real time running.

Now i need to see if i can get some audio programs running!

thanx again for your help!!

later,
mjr
http://erleichda.googlepages.com/home2

On 4/4/06, Fernando Lopez-Lezcano <nando@ccrma.stanford.edu> wrote:
> On Tue, 2006-04-04 at 11:11 -0400, blindman jones wrote:
> > I installed a partition with FC5 on it to try and get audio apps
> > working. My goal is to get the programs that I use most going. I hope
> > this might help Fernando and others who might want to do the same. I
> > am hoping for a little guidance from the community... I will detail
> > the process on a google page also.
> >
> > First, I am going to look at the current FC5 kernel,
> > 2.6.16-1.2080_FC5, to see what patches need to be applied. Most of the
> > documentation I can find is out of date.
> >
> > What I am curious to know, is what changes to PAM did Fernando do to
> > FC4 and do I have to do the same for the FC5 version? Are there any
> > other changes I will need to make just to get a base system ready to
> > build audio apps?
>
> BTW, I started working on fc5 last week, most apps build (on a first
> preliminary run), some don't[*]. I have spent a few days trying to get a
> system going that will make it easier to figure out build dependencies
> and will also flag overlaps with Fedora Core Extras, Livna and probably
> Freshrpms.
>
> I have not started with the kernel yet, that a whole different
> story[**]. About PAM, I think the PAM that comes with Fedora Core
> already has the right patches. What it does not have is its
> configuration set to allow realtime scheduling from user processes (ie:
> programs not running as root). That can be configured
> in /etc/security/limits.conf. The lines I was using on fc4 are:
>
> # or (default) allow everyone access
> *               -       rtprio          99
> *               -       nice            -10
> *               -       memlock         4000000
>
> First one allows any user to run SCHED_FIFO processes with any priority,
> the second allows run you renice processes (not really needed, I guess),
> the third allows you to lock down memory.
>
> So, you could use this (you will need to logout and login again after
> the changes) and the normal FC kernel to run audio apps with realtime
> scheduling. The low latency behavior will not be the best but the latest
> kernels are getting better.
>
> > Once I have a kernel with realtime working, and made any changes to
> > PAM etc... I will then begin to build JACK, Ardour, JAMin, Hydrogen.
> >
> > Will I need to mess with any other programs than the kernel & PAM?
>
> You don't really need to mess with the kernel (for initial tests). Most
> probably the FC kernel will be fine unless you need low latencies
> (although I have not done any tests yet).
>
> -- Fernando
>
> [**] the kernel: I have a kernel based on 1.1833 (fc4) that I grafted
> Ingo Molnar's patch on. Not trivial and I have to do that again with the
> latest fc kernel, probably a morning's worth _if_ I can concentrate. I
> have not released it because it was causing crashes in some tests I did
> here - I have not been able to pinpoint the real cause, last candidate
> was a stack overflow but I have gotten no response from a post I wrote
> to lkml and Ingo.
>
> [*] here is a quick list of things that did not build and why (very
> criptic) - some of these will be very easy to fix, I just didn't and
> moved along to get a better picture of what to expect. In a few cases I
> tried with newer versions, I have to do that with more apps:
>
> clxclient:
> aeolus:
>   patches required for gcc4.1 (done)
>
> ardour:
>   weird problem at the final link, tries to link with libcurl and
> libidn, both fail. If those two are removed from the link stage the link
> succeeds and the resulting binary does link with both libraries!
>
> avifile:
>   fails to build, new version available
>
> caps:
>   gcc4.1 template problem
>
> cheesetracker:
>   gcc4.1 extra qualification problems
>
> cmt:
>   still using -Wall in fc5
>
> fox:
>   complains about something
>
> freqtweak:
>   check to see if it can be made to build with wxGTK 2.6.x
>   with compat-wxGTK2-devel if fails with:
>     /usr/lib/libwx_gtk2-2.4.so: undefined reference to
> `pango_x_get_context'
>
> gmorgan:
>   config.status: error: cannot find input file: po/Makefile.in.in
>
> hydrogen:
>   src/lib/xml/tinyxml.h:828: error: extra qualification
> 'TiXmlDeclaration::' on member 'TiXmlDeclaration'
>
> jaaa:
>   prbsgen.h:126: error: extra qualification 'Prbsgen::' on member
> 'crc_in'
>   prbsgen.h:127: error: extra qualification 'Prbsgen::' on member
> 'crc_out'
>   (same prob on previous package, patch available)
>
> japa:
>   extra qualifications...
>
> libquicktime:
>     File not
> found: /var/tmp/libquicktime-0.9.7-1.rhfc5.ccrma-root/usr/bin/lqtplay
>     File not
> found: /var/tmp/libquicktime-0.9.7-1.rhfc5.ccrma-root/usr/bin/lqtvrplay
>     File not found by
> glob: /var/tmp/libquicktime-0.9.7-1.rhfc5.ccrma-root/usr/share/man/man1/*
>
> linuxsampler:
>   fails to build, new version available
>
> lilypond:
>   fails to build (early fail)
>
> noteedit:
>   fails to build
>
> phat:
>   fails to build (warnings being treated as errors)
>
> qsynth:
>   src/qsynthMainForm.cpp:27:25: error: qsynthmeter.h: No such file or
> directory
>   src/qsynthMainForm.cpp:28:26: error: qsynthtabbar.h: No such file or
> directory
>
> soundtouch:
>   fails to build
>
> rtmix:
>   extra qualification
>
> seq24:
>   poor naming choice of new binary? (dump)
>
> sooperlooper:
>   fails to build, need auto* tools?
>
> spiralsynthmodular:
>   extra qualification
>
> swami:
>   /usr/bin/ld: cannot find -lSM
>
> Things that apparently built (_no_ testing at all):
>
> a52dec a52dec-devel aeolus alsaplayer alsaplayer-devel amb-plugins ams
> ats bitscope blop brutefir ceres3 cinepaint cinepaint-devel clalsadrv
> clalsadrv-devel clthreads clthreads-devel clxclient clxclient-devel
> denemo dssi dssi-devel dvdauthor ecamegapedal ecasound ecasound-devel
> faad2 faad2-devel ffmpeg ffmpeg2theora ffmpeg-devel fil-plugins
> fluidsynth fluidsynth-dssi galan gamix gscanbus gtk-canvas
> gtk-canvas-devel hexter jack-audio-connection-kit
> jack-audio-connection-kit-devel
> jack-audio-connection-kit-example-clients jackmix jamin kmidimon lash
> lash-devel libdvdread libdvdread-devel libecasoundc libfishsound
> libfishsound-devel libfluidsynth libfluidsynth-devel liblo liblo-devel
> liblrdf liblrdf-devel libmad libmad-devel libmpeg3 libpostproc mftrace
> muse mxml mxml-devel pmidi potrace PVC pvoc pyecasound qamix qjackctl
> qmidiarp qmidicontrol qmidiroute qwt qwt-devel raptor raptor-devel
> resample rev-plugins rosegarden4 rubyecasound seq24 supercollider
> swh-plugins tapiir tap-plugins tap-plugins-doc tap-reverbed timemachine
> tse3 tse3-devel vcdimager vco-plugins vkeybd xmms-aac xsynth-dssi
> zynaddsubfx
>
>
>


--
michael jones * erleichda archiving * usa
shivering is the first step towards your destiny.....