android - 使用 AudioTrack 在 Android 上流式传输 G711 ulaw

Question

我正在尝试通过多部分 HTTP 流从 Axis 网络安全摄像头流式传输实时音频，该流在 Android 手机上以 g711 ulaw 8 khz、8 位样本编码。看起来这应该很简单，这是我的代码的基础。我重用了一些从 MJPEG 流中抓取 JPEG 帧的流代码，现在它抓取 512 字节的音频数据块并将其传递给 AudioTrack。音频听起来都是乱码和失真，我是否遗漏了一些明显的东西？

@Override
public void onResume() {
    super.onResume();
    int bufferSize = AudioTrack.getMinBufferSize(8000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_8BIT);
    mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_8BIT, bufferSize, AudioTrack.MODE_STREAM);
    mAudioTrack.play();
    thread.start();
}

class StreamThread extends Thread {
    public boolean running = true;

    public void run() {
        try {
            MjpegStreamer streamer = MjpegStreamer.read("/axis-cgi/audio/receive.cgi?httptype=multipart");

            while(running) {
                byte[] buf = streamer.readMjpegFrame();
                if(buf != null && mAudioTrack != null) {
                    mAudioTrack.write(buf, 0, buf.length);
                }
            }


        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}