Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer.

语音3D特效器制作， 获取3D缓冲区对象，最大距离和最小距离等具体设置-3D audio effects device production, access to 3D buffer object, the maximum distance and minimum distance from a specific set

Linux SDL库，封装了声音、键盘、鼠标、显卡等设备。-This is the Simple DirectMedia Layer, a general API that provides low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D framebuffer across multiple platforms