Gr-audio-osx to test

I just finished updating much of the gr-audio-osx code:

  • improved buffering for reduced latency … but not yet using GR’s
    gr_buffer as I haven’t had time to figure out how to use it. I have
    a circular_buffer class which I wrote myself for the fast USB code
    (since it can’t use other GR stuff) which works really nicely and is
    thread safe (a requirement for both OSX’s audio and USB).

  • fixed a couple bugs that wouldn’t make any difference in
    performance or functionality (but, hey, now they’re fixed!).

  • tried to add "listener"s to determine when the default input /
    output device changes while running but these don’t seem to do
    anything. For those who might understand CoreAudio, look in gr-audio-
    osx/src/ for “LISTENER” to see the code sections
    (they’re #if’d out right now).

Anyone who would like to beta-test this software, please send me a
note & I’ll forward you the tarball. Install is exactly like any
other GR module (e.g. gnuradio-core), but I think gr-audio-osx
requires GNU’s libtool v1.5.20 or newer to work (does -not- seem to
work with v1.5.10). - MLD

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