C++ SDL_mixer播放声音

C++ SDL_mixer播放声音

配置请参照前面的笔记https://www.cnblogs.com/zzr-stdio/p/14514043.html

参照视频教程：https://www.bilibili.com/video/BV1Ss411e7nL/?spm_id_from=333.788.videocard.19

需要下载配置SDL，下载地址：http://www.libsdl.org/projects/SDL_mixer/，配置过程与SDL_image类似。

示例程序：

#include <iostream>
#include<SDL.h>
#include<SDL_image.h>
#include<SDL_mixer.h>
#include<vector>
using namespace std;
const int WIDTH = 800;
const int HEIGHT = 600;
int main(int argc, char* argv[])
{
    ::SDL_Init(SDL_INIT_VIDEO);//初始化SDL
    ::SDL_Window* window = ::SDL_CreateWindow("SDL test", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
        WIDTH, HEIGHT, SDL_WINDOW_SHOWN);//创建窗体
    
    bool quit = false;
    ::SDL_Event event;
    Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048);//设置声音
    ::Mix_Music* sound = Mix_LoadMUS("1.mp3");//加载声音文件
    ::Mix_Music* sound2 = Mix_LoadMUS("2.mp3");
    Mix_PlayMusic(sound, 0);
    while (quit == false)
    {
        while (::SDL_PollEvent(&event))
        {
            if (event.type == SDL_QUIT)
            {
                quit = true;
            }
            else if (event.type == SDL_MOUSEBUTTONDOWN)
            {
                if (event.button.button == SDL_BUTTON_LEFT)
                {
                    Mix_PlayMusic(sound, 0);
                }
                else if (event.button.button == SDL_BUTTON_RIGHT)
                {
                    Mix_PlayMusic(sound2, 0);
                }
            }
            else if (event.type == SDL_KEYDOWN)
            {
                switch (event.key.keysym.sym)
                {
                case SDLK_UP:
                    Mix_VolumeMusic(100);//设置音量
                    break;
                case SDLK_DOWN:
                    Mix_VolumeMusic(10);
                    break;
                case SDLK_LEFT:
                    break;
                }
            }
        }
        ::SDL_UpdateWindowSurface(window);
    }
    ::SDL_DestroyWindow(window);//销毁窗体
    Mix_CloseAudio();
    ::SDL_Quit();//退出SDL
    return 0;
}