SDL_AudioSpec

A structure that contains audio data. This structure (function in header) is called when the audio device needs more data.

Contents

Structure Parameters

stream	a pointer to the audio data buffer
len	the length of that buffer in bytes

int	freq	DSP frequency -- samples per second
SDL_AudioFormat	format	audio data format
Uint8	channels	number of channels: 1 mono, 2 stereo
Uint8	silence	audio buffer silence value (calculated)
Uint16	samples	audio buffer size in samples (power of 2)
Uint32	size	audio buffer size in bytes (calculated)
void*	userdata
SDL_AudioCallback	callback

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The calculated values in this structure are calculated by SDL_OpenAudio().

Once the callback returns, the buffer will no longer be valid.

Stereo samples are stored in a LRLRLR ordering.

The callback is of the form:

void (SDLCALL* callback)
     (void*    userdata, 
      Uint8*   stream, 
      int      len);
void* userdata