* Sound card word clocks.
@ 2006-01-03 23:45 James Courtier-Dutton
0 siblings, 0 replies; only message in thread
From: James Courtier-Dutton @ 2006-01-03 23:45 UTC (permalink / raw)
To: ALSA development
Hi,
I was wondering if it would be useful to let alsa-lib
1) read sound card word clocks. Do all sound cards have word clock
registers? I know all Creative ones do.
2) set timer period interrupts based on the sound card's word clock.
This could make a call back similar to periods_elapsed(), which happens
when a period interrupt happens.
They could possibly be used for a better alsa-lib resampler.
Another possible alternative could be a form of nanosleep() that auto
repeats. I.e. the kernel causes a user-land callback every X
nanoseconds. Does one exist in the kernel?
I think a wordclock based callback would probably be more in sync with
the sound card than a nanosleep() one.
James
-------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems? Stop! Download the new AJAX search engine that makes
searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2006-01-03 23:45 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-01-03 23:45 Sound card word clocks James Courtier-Dutton
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox