[Protux-devel] 0.17.1 development report

[Luciano Giordana]

Hi guys,

first of all, sorry by the lack of emails. I am really dealing hard with 
internet connection, and make the best I can

this is to tell that the 0.17.1 development is going on. I am trying hard to 
understand the ALSA subdevicing capability, althought there is NO 
documentation about this. 

For example, I didnt understand yet if a subdevice (for example, the "1" in 
hw:0,1 ) is about the first pcm stream or a piece of a pcm stream. Also,
I could not find a good way to use ALSA API to query about a device 
capabilities, max sample rate, max numb of channels, and so on..

Sometimes I get so angry about the lack of good documentation for ALSA that I 
really consier about forget it (do not worry, I wont do that :-). I inspect 
about using JACK, but JACK is callback driven, and this is a approach that is 
very bad in my opinion, since it compromises the smoothness on captured audio 
(protux and the main comercial software uses a thread approach, that is far 
robust in my opinion).

Anyway, I believe the last problems we will have with ALSA are these we are 
getting now. Once I have a way to detect a device capabilities, everything 
else will be done inside libmustux. For example, if I find that ALSA cannot 
record for separate channels (as I am almost sure it is, after some 
research), I know that this is possible to do by software - it is just a 
matter of always use the capture buses in stereo mode and manually separate 
the streams in real time (this is a low CPU consuming process).

I am about to commit last changes and instruct Reinhard or Martin to release 
0.17.1 stuff. So please be patient with me :-)

Thanks and congratulations on doc and autostuff work


L

ps - Also mustache dependes on these ALSA related changes. so ASA I get it 
working, I will commit some improvements on mustache.



On Friday 31 January 2003 12:22 pm, Martin Herren wrote:
> Fabio dos Santos wrote:
> >Ok.
> >
> >Configure scripts worked fine. Compilation also went relatively smooth
> >(except for the warning at the end.) However I could not make Mustache
> >run. .  I'm not sure if that's related to the general problem we are
> >trying to solve. Just for the Record, Protux runs fine. . .
>
> thanks.
> for the warning at the end of the compilation, it's ok for the moment
> (it's a problem in mustache).
> ./configure's output looks fine too...
>
> >bash-2.05b$ mustache
> >mustache: error while loading shared libraries: libmustux.so.0: cannot
> >open shared object file: No such file or directory
>
> that's strange... as protux runs fine it doesn't seem to be a problem
> with the dynamic run time linker...
> (but perhaps running ldconfig as root could help ?)
> what does
> $ ls -la /usr/local/lib/libmustux.*
> give ?
>
> /Martin
>
>
>
>
>
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-- 
--
Best Regards
--
Luciano Giordana - Musician - Certified Java/GNU C++ Developer - Free Software 
Evangelist
Project Mustux - http://www.freesoftware.fsf.org/mustux
-- Once Palladium is up and running , I will become a hacker --