java 对接国标摄像头流程、代码整合 springboot SIP -GB2818

对接国标摄像头需要使用 SIP 协议进行通信，以下是整合 springboot 和 SIP 协议的代码示例：

1. 添加依赖

在 pom.xml 文件中添加以下依赖：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-sip</artifactId>
    <version>2.4.5</version>
</dependency>

2. 配置 SIP

在 application.properties 文件中添加以下配置：

# SIP server configuration
spring.sip.server.address=192.168.0.1
spring.sip.server.port=5060
spring.sip.server.transport=udp

# SIP client configuration
spring.sip.client.address=192.168.0.2
spring.sip.client.port=5060
spring.sip.client.transport=udp
spring.sip.client.username=username
spring.sip.client.password=password

3. 编写代码

创建一个 SIP 消息监听器，用于处理 SIP 消息：

@Component
public class SipListener implements MessageListener {

    @Autowired
    private SipSessionRegistry sipSessionRegistry;

    @Override
    public void onMessage(SipMessage sipMessage) {
        // 处理 SIP 消息
    }
}

创建一个 SIP 客户端，用于向 SIP 服务器发送请求：

@Service
public class SipClient {

    @Autowired
    private SipSessionRegistry sipSessionRegistry;

    @Autowired
    private SipMessageFactory sipMessageFactory;

    @Autowired
    private SipClientTransactionFactory sipClientTransactionFactory;

    @Autowired
    private SipServerLocator sipServerLocator;

    public void sendInvite(String address) throws Exception {
        Request request = sipMessageFactory.createRequest(
                "INVITE", "sip:" + address + ":5060", "SIP/2.0");
        // 添加必要的头部信息
        request.addHeader("From", "<sip:username@192.168.0.2>;tag=123456");
        request.addHeader("To", "<sip:" + address + ":5060>");
        request.addHeader("Call-ID", UUID.randomUUID().toString());
        request.addHeader("CSeq", "1 INVITE");
        request.addHeader("Contact", "<sip:username@192.168.0.2>");
        request.addHeader("Content-Type", "application/sdp");
        // 设置 SDP
        String sdp = "v=0\r\n" +
                "o=- 0 0 IN IP4 192.168.0.2\r\n" +
                "s=Java SIP Client\r\n" +
                "c=IN IP4 192.168.0.2\r\n" +
                "t=0 0\r\n" +
                "m=video 5004 RTP/AVP 96\r\n" +
                "a=rtpmap:96 H264/90000\r\n" +
                "a=fmtp:96 packetization-mode=1; profile-level-id=42001E; sprop-parameter-sets=Z00AH5pmDoAtyA==,aOvssiw=\r\n" +
                "a=sendonly";
        request.setContent(sdp, "application/sdp");
        // 发送 INVITE 请求
        SipClientTransaction transaction = sipClientTransactionFactory.createClientTransaction(request);
        transaction.sendRequest();
        // 将会话保存到会话注册表中
        SipSession session = new SipSession();
        session.setTransaction(transaction);
        session.setRemoteAddress(address);
        session.setRemotePort(5060);
        sipSessionRegistry.addSession(session);
    }
}

4. 调用 SIP 客户端

在需要发送 INVITE 请求的地方调用 SIP 客户端的 sendInvite 方法即可：

@Autowired
private SipClient sipClient;

public void sendInviteRequest(String address) throws Exception {
    sipClient.sendInvite(address);
}

5. 配置国标摄像头

配置国标摄像头需要使用国标协议，以下是配置国标摄像头的代码示例：

public void configureCamera(String address) throws Exception {
    // 创建 SIP 客户端
    SipClient sipClient = new SipClient();
    // 发送 INVITE 请求
    sipClient.sendInvite(address);
    // 等待响应
    Thread.sleep(5000);
    // 获取 SDP
    SipSession session = sipSessionRegistry.getSession(address);
    String sdp = session.getResponse().getContent().toString();
    // 解析 SDP 获取视频流地址
    String videoUrl = parseVideoUrlFromSdp(sdp);
    // 配置国标摄像头
    configureGbCamera(videoUrl);
}

以上就是整合 springboot 和 SIP 协议进行国标摄像头对接的流程和代码示例。