我试图使用 gdx- audio 扩展, 但无法解码 mp3 。 它有效, 但非常慢!! 一个 10 秒的文件需要 6. 57 秒才能解码 : (这里的方法是 :
public void decode() {
Mpg123Decoder decoder = new Mpg123Decoder(externalFile);
short[] sampleArray = new short[1024];
// read until we reach the end of the file
while (decoder.readSamples(sampleArray, 0, sampleArray.length) > 0) {}
}
谁能告诉我为什么这么长时间?
因为 libmpg123 是一个软件解码器, 它可以对 CPU 进行全部操作。 取决于您拥有的 CPU, 您通常只能得到 2x 的实时解码 。 我们还没有在 libmpg123 的构建中启用 ARM 组装, 这可以帮助它加速一点, 但通常不会太多 。
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