If you're interested in the mechanics of full duplex memory-mapped i/o with ALSA-lib you could always check out PortAudio v19 CVS at www.portaudio.com, which implements both a blocking and callback interface. If you're interested specifically in JACK interfacing with ALSA-lib I would think alsa_driver.c would be the place to look.
Hope this helps
Arve Knudsen
On Wed, 10 Dec 2003 00:38:50 -0800, Ryan Cassidy <[EMAIL PROTECTED]> wrote:
Hello all,
I am trying to understand the specifics of the mechanism that JACK uses to perform audio duplexing (simultaneous playback and capture of audio). I have downloaded the latest source from CVS. Is the file 'alsa_driver.c' a good place to start (i.e. is this where the magic happens)? Does JACK use memory-mapped read/write?
Any info. greatly appreciated.
Cheers, rjc. -- Ryan Cassidy Electrical Engineering Graduate Student, CCRMA Researcher Stanford University E-mail: [EMAIL PROTECTED]
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