android rtp代码完整示例

以下是一个 Android 上使用 RTP 实现音频传输的基本示例代码：

1. 创建 AudioRecord 对象并进行初始化

int sampleRate = 44100;
int channelConfig = AudioFormat.CHANNEL_IN_MONO;
int audioFormat = AudioFormat.ENCODING_PCM_16BIT;

int minBufferSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRate, channelConfig, audioFormat, minBufferSize);
audioRecord.startRecording();

2. 创建 DatagramSocket 对象并指定远程 IP 和端口

DatagramSocket socket = new DatagramSocket();
InetAddress address = InetAddress.getByName("192.168.0.100"); // replace with remote IP address
int port = 12345; // replace with remote port number

3. 使用循环读取音频数据并将其发送到远程主机

byte[] buffer = new byte[minBufferSize];
while (true) {
    int readSize = audioRecord.read(buffer, 0, minBufferSize);
    DatagramPacket packet = new DatagramPacket(buffer, readSize, address, port);
    socket.send(packet);
}

4. 在接收端，创建一个 DatagramSocket 并监听指定端口，然后循环接收数据并播放

DatagramSocket socket = new DatagramSocket(12345); // replace with local port number
AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, channelConfig, audioFormat, minBufferSize, AudioTrack.MODE_STREAM);
audioTrack.play();

byte[] buffer = new byte[minBufferSize];
while (true) {
    DatagramPacket packet = new DatagramPacket(buffer, minBufferSize);
    socket.receive(packet);
    audioTrack.write(packet.getData(), 0, packet.getLength());
}

需要注意的是，RTP 不仅仅是简单的传输数据，还需要考虑数据的编码、分包、序列化等问题。上述代码只是一个简单示例，实际应用中需要根据具体情况进行调整和优化。