opensolaris man page for sdl_mixaudio

SDL_MixAudio(3) 						 SDL API Reference						   SDL_MixAudio(3)

NAME
       SDL_MixAudio - Mix audio data

SYNOPSIS
       #include "SDL.h"

       void SDL_MixAudio(Uint8 *dst, Uint8 *src, Uint32 len, int volume);

DESCRIPTION
       This function takes two audio buffers of len bytes each of the playing audio format and mixes them, performing addition, volume adjustment,
       and overflow clipping. The volume ranges from 0 to SDL_MIX_MAXVOLUME and should be set to the maximum value for	full  audio  volume.  Note
       this does not change hardware volume. This is provided for convenience -- you can mix your own audio data.

	      Note:

	      Do  not  use  this  function  for mixing together more than two streams of sample data. The output from repeated application of this
	      function may be distorted by clipping, because there is no accumulator with greater range than the input (not to mention this  being
	      an inefficient way of doing it). Use mixing functions from SDL_mixer, OpenAL, or write your own mixer instead.

SEE ALSO
       SDL_OpenAudio

SDL
							      Tue 11 Sep 2001, 22:58						   SDL_MixAudio(3)