Re: [Linuxsampler-devel] Setting LS buffer sizes

[Mark K. <mar...@co...>]

On Mon, 2003-12-29 at 09:15, Christian Schoenebeck wrote:
> Es geschah am Montag, 29. Dezember 2003 16:33 als Mark Knecht schrieb:
> > Hi,
> >    I know I can use '-n 2' to set the number of periods used by LS and
> > Alsa, but I'm not clear how I set the buffer size in LS. I'd like to run
> > LS with the same buffer sizes that I run GSt under Windows with when
> > doing comparisons between them.
> >
> >    Is there a command line option for this?
> 
> Yes, but there's no -n switch, actually these are the switches you want:
> 
> 	--numfragments     sets the number of audio fragments
> 	--fragmentsize     sets the fragment size

But LS does seem to recognize -n as the number of periods!

mark@Wizard mark $ linuxsampler --gig
/mnt/samples/Gigs/Pianos/Bardstown\ Audio/The\ Bosendorfer\ Imperial\
Grand\ Version\ 2.2.gig  -n 2
Initializing audio output...Warning: your soundcard doesn't support
chosen hardware parameters; trying to compensate support lack with
plughw...OK
Loading gig file...OK
Caching initial samples...OK
Starting disk thread...OK
Starting MIDI in thread...WARNING, can't mlockall() memory!: Operation
not permitted
OK
WARNING, can't mlockall() memory!: Operation not permitted
sched_setscheduler: Operation not permitted
Starting audio thread...OK
LinuxSampler initialization completed.
WARNING, can't mlockall() memory!: Operation not permitted)
sched_setscheduler: Operation not permitted
LinuxSampler stopped due to SIGINT0 (Max: 000, Unused: 100)
Error snd_pcm_writei failed. : Interrupted system call
Segmentation fault


mark@Wizard mark $ linuxsampler --gig
/mnt/samples/Gigs/Pianos/Bardstown\ Audio/The\ Bosendorfer\ Imperial\
Grand\ Version\ 2.2.gig  -n 4
Initializing audio output...Warning: your soundcard doesn't support
chosen hardware parameters; trying to compensate support lack with
plughw...Error setting number of periods. : Invalid argument
mark@Wizard mark $ 

> 
> and btw there are three new commandline switches:
> 
> --instrument       index of the instrument in the instrument file if it
>                    contains more than one (default: 0)

Great!! Is there any way yet to query a gig file for how many
instruments it contains, and what their names are? None the less, it's
great to have this capability.

> --volume           sets global volume gain factor (a value > 1.0 means
>                    amplification, a value < 1.0 means attenuation,
>                    default: 0.25)

Cool. I'll try it out and see what I need to do to be approximately
equal to GSt.

> --inputclient      connects to an Alsa sequencer input client on startup
>                    (e.g. 64:0 to connect to a client with ID 64 and port 0)

Thanks! Thanks! Thanks! Thanks!

BTW - If I didn't say it, then thanks!

> 
> 'linuxsampler --help' for more.
> 

Will download and build now. Will try out in about 8 hours or so.

Cheers,
Mark