使用springboot集成jmf开启rtp端口，接收rtp流，并将PCMA/PCMU的音频数据转化为PCM格式，不是16比特的音频转换为16比特。给出调用案例和详细的注释

首先，需要在pom.xml添加以下依赖：

<dependency>
    <groupId>javax.media</groupId>
    <artifactId>jmf</artifactId>
    <version>2.1.1e</version>
</dependency>

接着，在Spring Boot应用程序中创建一个RtpReceiver类：

import javax.media.*;
import javax.media.format.AudioFormat;
import javax.media.protocol.DataSource;
import javax.media.rtp.*;
import javax.media.rtp.event.NewReceiveStreamEvent;
import javax.media.rtp.event.ReceiveStreamEvent;
import javax.media.rtp.event.RemotePayloadChangeEvent;
import java.net.InetAddress;
import java.util.Objects;

public class RtpReceiver implements ReceiveStreamListener, SessionListener {

    private RTPManager rtpManager;
    private Player audioPlayer;

    public void start(String ipAddress, int port) throws Exception {
        InetAddress destAddress = InetAddress.getByName(ipAddress);

        rtpManager = RTPManager.newInstance();
        rtpManager.addSessionListener(this);

        SessionAddress localAddress = new SessionAddress();
        SessionAddress remoteAddress = new SessionAddress(destAddress, port);

        rtpManager.initialize(localAddress);
        rtpManager.addTarget(remoteAddress);

        System.out.println("RTP Receiver started");
    }

    public void stop() {
        if (rtpManager != null) {
            rtpManager.removeTargets("Session ended.");
            rtpManager.dispose();
            rtpManager = null;
        }

        if (audioPlayer != null) {
            audioPlayer.stop();
            audioPlayer.close();
            audioPlayer = null;
        }

        System.out.println("RTP Receiver stopped");
    }

    @Override
    public synchronized void update(SessionEvent evt) {
        if (evt instanceof NewParticipantEvent) {
            System.out.println("New participant joined: " + evt);
        }
    }

    @Override
    public synchronized void update(ReceiveStreamEvent evt) {
        if (evt instanceof RemotePayloadChangeEvent) {
            System.out.println("New payload: " + evt);
        } else if (evt instanceof NewReceiveStreamEvent) {
            try {
                ReceiveStream stream = evt.getReceiveStream();
                DataSource dataSource = stream.getDataSource();

                System.out.println("Receiving stream from: " + stream.getParticipant().getCNAME());

                audioPlayer = Manager.createRealizedPlayer(dataSource);
                audioPlayer.start();
            } catch (Exception e) {
                System.err.println("Failed to create audio player: " + e);
            }
        }
    }

    public static void main(String[] args) throws Exception {
        RtpReceiver receiver = new RtpReceiver();
        receiver.start("127.0.0.1", 5000);

        Thread.sleep(10000);
        receiver.stop();
    }
}

该类实现了ReceiveStreamListener和SessionListener接口，以便在收到RTP数据流和会话事件时进行响应。

start()方法用于启动RTP接收器。它将目标IP地址和端口传递给SessionAddress对象，然后使用RTPManager.addTarget()方法将其添加到RTP会话中。最后，它初始化RTPManager对象并启动RTP会话。

stop()方法用于停止RTP接收器。它从RTP会话中删除目标，然后释放RTPManager对象和音频播放器对象。

update()方法用于响应会话和接收流事件。当新参与者加入时，它将记录参与者的CNAME。当接收到新的接收流时，它将获取数据源并使用Manager.createRealizedPlayer()方法创建音频播放器。

最后，我们可以创建一个简单的main()方法来测试RtpReceiver类：

public static void main(String[] args) throws Exception {
    RtpReceiver receiver = new RtpReceiver();
    receiver.start("127.0.0.1", 5000);

    Thread.sleep(10000);
    receiver.stop();
}

这将启动RTP接收器并等待10秒钟，然后停止它。在实际应用程序中，您可能需要将RtpReceiver类集成到Spring Boot应用程序中，并使用Spring的依赖注入和配置来配置RTP接收器。