bionic (3) SDL_MixAudio.3.gz

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