ref: 584e5f7e8212f70af2d8480f580ce7005a6579c5
dir: /plugins/winamp/out.h/
#define OUT_VER 0x10
typedef struct
{
int version; // module version (OUT_VER)
char *description; // description of module, with version string
int id; // module id. each input module gets its own. non-nullsoft modules should
// be >= 65536.
HWND hMainWindow; // winamp's main window (filled in by winamp)
HINSTANCE hDllInstance; // DLL instance handle (filled in by winamp)
void (*Config)(HWND hwndParent); // configuration dialog
void (*About)(HWND hwndParent); // about dialog
void (*Init)(); // called when loaded
void (*Quit)(); // called when unloaded
int (*Open)(int samplerate, int numchannels, int bitspersamp, int bufferlenms, int prebufferms);
// returns >=0 on success, <0 on failure
// NOTENOTENOTE: bufferlenms and prebufferms are ignored in most if not all output plug-ins.
// ... so don't expect the max latency returned to be what you asked for.
// returns max latency in ms (0 for diskwriters, etc)
// bufferlenms and prebufferms must be in ms. 0 to use defaults.
// prebufferms must be <= bufferlenms
void (*Close)(); // close the ol' output device.
int (*Write)(char *buf, int len);
// 0 on success. Len == bytes to write (<= 8192 always). buf is straight audio data.
// 1 returns not able to write (yet). Non-blocking, always.
int (*CanWrite)(); // returns number of bytes possible to write at a given time.
// Never will decrease unless you call Write (or Close, heh)
int (*IsPlaying)(); // non0 if output is still going or if data in buffers waiting to be
// written (i.e. closing while IsPlaying() returns 1 would truncate the song
int (*Pause)(int pause); // returns previous pause state
void (*SetVolume)(int volume); // volume is 0-255
void (*SetPan)(int pan); // pan is -128 to 128
void (*Flush)(int t); // flushes buffers and restarts output at time t (in ms)
// (used for seeking)
int (*GetOutputTime)(); // returns played time in MS
int (*GetWrittenTime)(); // returns time written in MS (used for synching up vis stuff)
} Out_Module;