Re: patch to esound to use ARts (KDE sound subsystem) if it's running

[Yo Ric Dude <ricdude toad net>]

1.  audio_aix is (was?) actually audio code for the AIX variant of UNIX.
The arts specific code should go into audio_arts.c, or perhaps more 
appropriately, audio_arts_fwd.c, as it forwards audio info to arts.

2. combine move dlarts() into arts_init()

3. use function pointers to evaluate the right esd_audio_*() functions.
e.g. have a variable: use_arts = 0 or 1, depending on the initialization of
the arts subsystem.  have a function pointer vector, arts_audio_write_vec[2],
whose first element is esd_audio_write(), and whose second is 
arts_do_audio_write().  All the ugly #ifdef logic in audio.c abbreviates to:

int arts_audio_write( void *buffer, int buf_size )
{
    return arts_audio_write_vec[ use_arts ]( buffer, buf_size );
}

More importantly, this paves the way for dynamic driver selection at runtime
(which is what you're really trying to implement with all that #ifdef crud).
The body of esd_audio_write becomes:

return esd_audio_write[ esd_driver_index ]( buffer, buf_size );

For bonus points, implement the dynamic driver selection mechanism.  Linux
machines could conceivable use oss, alsa, arts, nas, rplay, af, maybe more.
Rig up esd_audio_init() to #ifdef around all the desired oss_audio_init(), 
alsa_audio_init(), etc. Each *_audio_init() function adds the hooks for the
driver specific functions into the global map, including a check to compare
the argument given to -d on the command line, to see if it should be activated.


4. where arts has been added to the esd_audio_devices hooks, use "arts" instead 
of "sound server aRts".  add a one line explanation to the help hook conditional
on #ifdef DRIVER_ARTS





Vlad Harchev wrote:

> On Sat, 18 May 2002, Vlad Harchev wrote:
>
>  Hello,
>
>  The greatly polished and cleaned-up final version of the patch has been
> attached to that bugzilla ticket -
> 	http://bugzilla.gnome.org/show_bug.cgi?id=82154
>
>  It's very compact now - it doesn't have any duplicate code. 
>  Now it includes infrastructure for proxying sound to other sound servers
> such as NAS and others - if one wants to implement it - feel free to ask for
> advices.
>
>  What do you think about this patch now?
>
>  Best regards,
>   -Vlad
>
>
> > Hello, 
> >
> > It seems yet another step in cooperation between KDE and GNOME can be made
> > now. Igor Mokrushin <igor at avtomir dot ru> has prepared a patch against latest
> > ESD (Enlightened Sound Daemon) that makes it using ARts if ARts is already 
> > started for the current user. 
> > The patch doesn't require esd to be linked with arts libraries - it opens
> > ARts C API library dynamically using dlopen(3). Full functionality of esd 
> > (playing and recording) is supported if working via ARts. Majority of 
> > sound APIs supported by esd are adapted for ARts use - only the HPUX sound
> > system backend is not yet supported. Of course if ARts is not run for current
> > user, esd will perform its functions in a usual way. 
> > Essentially this patch allows GNOME apps (and other apps linked with esd lib)
> > not to be mute if run under KDE.
> >
> > The patch looks clean. Whether the ESD can utilize is selected at compile 
> > time is controlled by via yet another option for configure script.
> > Since ARts libraries are loaded dynamically, the esd with this patch won't
> > have a package dependancy on ARts; it even doesn't have build-time dependancy
> > too!
> >
> > The patch was placed in bugzilla:
> >    http://bugzilla.gnome.org/show_bug.cgi?id=82154
> >
> > Please consider intergrating this patch into ESD distribution. It would be
> > nice if it went into gnome2.
> >
> > Please forward this message to other mailing lists that you think are 
> > appropriate.
> >
> > Best regards,
> >  -Vlad
> >
> > _______________________________________________
> > desktop-devel-list mailing list
> > desktop-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/desktop-devel-list
>
>
> _______________________________________________
> gnome-hackers mailing list
> gnome-hackers gnome org
> http://mail.gnome.org/mailman/listinfo/gnome-hackers
>
> .



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