Question

在掌握了Lollipop的Android设备之后，我注意到我们为Kitkat（以及之前的版本）工作的AudioTrack代码只是停止工作，完全相同的代码适用于Lollipop之前的设备，所以我想知道是什么我对新版本做错了。以下是AudioTrack（由mTrack属性引用）初始化的方式：

protected void onCreate(Bundle savedInstanceState) {
    int bufferSize = AudioTrack.getMinBufferSize(AUDIO_SAMPLE_RATE, AudioFormat.CHANNEL_CONFIGURATION_STEREO, AudioFormat.ENCODING_PCM_16BIT);

    mTrack = new AudioTrack(AudioManager.STREAM_MUSIC, AUDIO_SAMPLE_RATE,
                    AudioFormat.CHANNEL_CONFIGURATION_STEREO,
                    AudioFormat.ENCODING_PCM_16BIT, bufferSize,
                    AudioTrack.MODE_STREAM);
}

以下是填充缓冲区的方法：

public void onPlayAudio(byte[] audioBuffer) {
    if (mTrack.getPlayState() != AudioTrack.PLAYSTATE_PLAYING) {
        mTrack.play();
    }

    if (audioBuffer != null) {
        mTrack.write(audioBuffer, 0, audioBuffer.length);
    }
}

这再次适用于Lollipop之前的设备。 Logcat上没有错误，一切似乎都很正常，但声音没有出来（是的，我检查了音量，它一直都是）。所以我想知道是否有更新我缺少或者说我做错了。

我注意到AudioFormat.CHANNEL_CONFIGURATION_STEREO已被弃用，但尝试使用建议的AudioFormat.CHANNEL_OUT_STEREO似乎无法解决问题。

任何帮助都将受到高度赞赏。

Answer 1

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AudioTrack停止在Android 5.0上运行

1 个答案: