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Checks result of ao-open-live function #9

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Checks result of ao-open-live function #9

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8f3e8c1
added init check around ao-open-live
y2q-actionman Apr 5, 2021
8158e1a
Moved open-ao calling to parental thread
y2q-actionman Apr 10, 2021
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23 changes: 15 additions & 8 deletions mixalot.lisp
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Original file line number Diff line number Diff line change
Expand Up @@ -304,9 +304,13 @@
(ao-fmt-rate fmt) rate
(ao-fmt-byte-format fmt) AO_FMT_LITTLE
(ao-fmt-matrix fmt) matrix)
(ao-open-live (ao-default-driver-id)
fmt
(null-pointer)))))
(let ((device (ao-open-live (ao-default-driver-id)
fmt
(null-pointer))))
(when (null-pointer-p device)
;; TODO: see errno via CFFI-grovel.
(error "libao ao-open-live failed."))
device))))

#+mixalot::use-ao
(defun main-thread-init ()
Expand Down Expand Up @@ -615,18 +619,21 @@ should be output in STREAMER-MIX-INTO or STREAMER-WRITE-INTO."
#-(or mixalot::use-ao mixalot::use-alsa)
(error "Neither mixalot::use-ao nor mixalot::use-alsa existed on *features* when this function was compiled. That is wrong.")
(let ((mixer (funcall constructor :rate rate)))
#+mixalot::use-alsa
(bordeaux-threads:make-thread
(lambda ()
#+mixalot::use-ao
(progn
(setf (mixer-device mixer) (open-ao :rate rate))
(run-mixer-process mixer))
#+mixalot::use-alsa
(call-with-pcm rate
(lambda (pcm)
(setf (mixer-device mixer) pcm)
(run-mixer-process mixer))))
:name (format nil "Mixer thread ~:D Hz" rate))
#+mixalot::use-ao
(let ((device (open-ao :rate rate)))
(setf (mixer-device mixer) device)
(bordeaux-threads:make-thread
(lambda ()
(run-mixer-process mixer))
:name (format nil "Mixer thread ~:D Hz" rate)))
mixer))

(defun destroy-mixer (mixer)
Expand Down