Question

我正在开发耳机/免提应用程序并在演示板上运行。成功连接到手机后，当应用程序从手机读取数据时，我通过手机拨打或播放音乐。手机没有发出声音，demoboard也是如此。现在系统日志显示“拒绝传入的SCO连接”，为什么？如何为传入的SCO连接路由音频？我怎样才能听到演示板？

代码，

private boolean connected = false;
private BluetoothSocket sock;
private InputStream in;
private boolean running = true;
public void test() throws Exception {
    if (connected) {
        return;
    }

    BluetoothDevice zee = BluetoothAdapter.getDefaultAdapter().getRemoteDevice("00:1C:D4:F7:7F:FD");//The phone's address
    UUID myUuid = UUID.fromString("00001112-0000-1000-8000-00805f9b34fb");//headset uuid
    sock = zee.createRfcommSocketToServiceRecord(myUuid);
    Log.d(TAG, "++++ Connecting " + zee.getName());
    sock.connect();
    Log.d(TAG, "++++ Connected " + sock.toString());
    in = sock.getInputStream();
    byte[] buffer = new byte[50];
    int read = 0;
    Log.d(TAG, "++++ Listening...");
    running = true;
    try {
        while (running) {
            read = in.read(buffer);
            connected = true;
            StringBuilder buf = new StringBuilder();
            for (int i = 0; i < read; i++) {
                int b = buffer[i] & 0xff;
                if (b < 0x10) {
                    buf.append("0");
                }
                buf.append(Integer.toHexString(b)).append(" ");
            }
            Log.d(TAG, "++++ Read "+ read +" bytes: "+ buf.toString());
        }
    } catch (IOException e) {
     Log.e(TAG, "++++ IOException e:" + e.toString());
    }

    connected = false;
    Log.d(TAG, "++++ Done: test()");
}

Answer 1

AudioManager localAudioManager = (AudioManager) getSystemService("audio");

localAudioManager.setBluetoothScoOn(true);              

localAudioManager.startBluetoothSco();              

localAudioManager.setMode(2);

Answer 2

如果我理解您的代码，您正在尝试从RFComm套接字读取音频。应使用RFComm套接字将AT命令发送到设备（而不是读取音频数据）。

发送AT命令时，请确保至少发送/响应免提设备AT+BRSF, AT+CIND=?, AT+CIND?, AT+CMER=x,x,x,x的3个强制AT命令。请参见Handsfree reference第19页。

在该阶段之后，您应该打开SCO音频连接以获取音频。

如何为传入的SCO连接路由音频？

2 个答案: