兼容缺少y=的sdp

648540858

2021-11-20 297f8965526b9438117c78b64eb6a0b3a518c70d

 src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java

@@ -4,7 +4,8 @@
import com.genersoft.iot.vmp.gb28181.transmit.SIPProcessorObserver;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommander;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.impl.SIPCommanderFroPlatform;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorAbstract;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.ISIPRequestProcessor;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory;
import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.service.IMediaServerService;
@@ -16,6 +17,7 @@
import gov.nist.javax.sip.address.SipUri;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@@ -31,14 +33,12 @@
import java.text.ParseException;
import java.util.Vector;

/**    
 * @description:处理INVITE请求
 * @author: panll
 * @date:   2021年1月14日
/**
 * SIP命令类型： INVITE请求
 */
@SuppressWarnings("rawtypes")
@Component
public class InviteRequestProcessor extends SIPRequestProcessorAbstract {
public class InviteRequestProcessor extends SIPRequestProcessorParent implements InitializingBean, ISIPRequestProcessor {

   private final static Logger logger = LoggerFactory.getLogger(InviteRequestProcessor.class);

@@ -138,12 +138,21 @@
            // 解析sdp消息, 使用jainsip 自带的sdp解析方式
            String contentString = new String(request.getRawContent());

            // jainSip不支持y=字段， 移除移除以解析。
            // jainSip不支持y=字段， 移除以解析。
            int ssrcIndex = contentString.indexOf("y=");
            //ssrc规定长度为10字节，不取余下长度以避免后续还有“f=”字段
            String ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
            String substring = contentString.substring(0, contentString.indexOf("y="));
            SessionDescription sdp = SdpFactory.getInstance().createSessionDescription(substring);
            // 检查是否有y字段
            String ssrcDefault = "0000000000";
            String ssrc;
            SessionDescription sdp;
            if (ssrcIndex >= 0) {
               //ssrc规定长度为10字节，不取余下长度以避免后续还有“f=”字段
               ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
               String substring = contentString.substring(0, contentString.indexOf("y="));
               sdp = SdpFactory.getInstance().createSessionDescription(substring);
            }else {
               ssrc = ssrcDefault;
               sdp = SdpFactory.getInstance().createSessionDescription(contentString);
            }

            //  获取支持的格式
            Vector mediaDescriptions = sdp.getMediaDescriptions(true);