+
−#include <SDL_audio.h>
+
−typedef struct audioData {
+
−    struct audioData *self;
+
−    int volume;
+
−    double frequency;
+
−    char *waveform_name;
+
−
+
−    int sampling_rate;
+
−    Uint16 format;
+
−    Uint8 channels;
+
−    Uint8 silence;
+
−    Uint16 samples;
+
−    Uint32 size;
+
−    //void (*callback)(void *userdata, Uint8 *stream, int len);
+
−    void *userdata;
+
−} AudioData, *AudioDataPtr;