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coreaudio_example.h

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+/* Header file for example code.
+   We include CoreAudio and AudioUnit framework headers directly. */
+
+#include <cstdio>
+#include <cstdlib>
+#include <pthread.h>
+
+#include <CoreAudio/CoreAudio.h>
+#include <AudioUnit/AudioUnit.h>
+
+namespace coreaudio_example {
+
+/* these format constants are based on the ones we use in audacious.
+   S16_LE means signed 16-bit pcm, little-endian. */
+enum format_type {
+    FMT_S16_LE,
+    FMT_S16_BE,
+    FMT_S32_LE,
+    FMT_S32_BE,
+    FMT_FLOAT
+};
+
+bool init (void);
+void cleanup (void);
+void set_volume (int value);
+bool open_audio (enum format_type format, int rate, int chan,
+                 AURenderCallbackStruct * callback);
+void close_audio (void);
+void pause_audio (bool paused);
+
+#define VOLUME_RANGE (40) /* decibels */
+
+}