如何使用SDL输出多个声音？ [英] How to output multiple sounds with SDL?

问题描述

我选择了SDL来抽象音频输出，因为SDL是平台无关的。我重写了它使用SDL输出音频，它的工作原理。但是，我想同时输出多个声音，SDL每次只支持一个声音。

我该怎么办？

如果它是免费的，轻量级的并且支持Linux，Windows XP和Android 2.3，我可以使用其他音频库。

EDIT：我不必解码整个音频数据和填充音频缓冲区，我必须在每次迭代中部分填充缓冲区。循环或回调函数是填充下一个音频帧播放的解决方案。

解决方案

SDL_Mixer是如果你'重新使用SDL。它可以一次播放多个声音，虽然只有一个音乐。

您可以下载SDL_Mixer，并获得文档，在 http://www.libsdl.org/projects/SDL_mixer/ （或google SDL_Mixer）。

I have a library to decode some audio data into PCM and it works fine with Alsa.

I chose SDL to abstract the audio output because SDL is platform-independent. I rewrote it to use SDL to output the audio and it works. However, I want to output multiple sounds simultaneously and SDL only supports one sound per time.

What should I do?

I can use other audio library if it is free, lightweight and supports Linux, Windows XP and Android 2.3.

EDIT: Instead of decoding the entire audio data and filling the audio buffer, I have to fill the buffer partially on each iteration. Loops or callback functions are the solution to fill the next audio frame to play.

解决方案

SDL_Mixer is the way to go if you're using SDL. It can play multiple sounds at a time, although only one music.

You can download SDL_Mixer, and get documentation, at http://www.libsdl.org/projects/SDL_mixer/ (or google SDL_Mixer).

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