优化播放页面

648540858

2022-05-18 17f219d351340829e4c5edcbf269027811fc08a2

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

@@ -1,20 +1,32 @@
package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl;

import com.alibaba.fastjson.JSONObject;
import com.genersoft.iot.vmp.conf.DynamicTask;
import com.genersoft.iot.vmp.conf.UserSetting;
import com.genersoft.iot.vmp.gb28181.bean.*;
import com.genersoft.iot.vmp.gb28181.event.SipSubscribe;
import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
import com.genersoft.iot.vmp.gb28181.transmit.SIPProcessorObserver;
import com.genersoft.iot.vmp.gb28181.transmit.cmd.ISIPCommander;
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.ISIPRequestProcessor;
import com.genersoft.iot.vmp.gb28181.transmit.event.request.SIPRequestProcessorParent;
import com.genersoft.iot.vmp.gb28181.utils.SipUtils;
import com.genersoft.iot.vmp.media.zlm.ZLMHttpHookSubscribe;
import com.genersoft.iot.vmp.media.zlm.ZLMMediaListManager;
import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory;
import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.service.IMediaServerService;
import com.genersoft.iot.vmp.service.IPlayService;
import com.genersoft.iot.vmp.service.bean.MessageForPushChannel;
import com.genersoft.iot.vmp.service.bean.SSRCInfo;
import com.genersoft.iot.vmp.storager.IRedisCatchStorage;
import com.genersoft.iot.vmp.storager.IVideoManagerStorager;
import com.genersoft.iot.vmp.vmanager.gb28181.play.bean.PlayResult;
import gov.nist.javax.sip.address.AddressImpl;
import gov.nist.javax.sip.address.SipUri;
import com.genersoft.iot.vmp.storager.IVideoManagerStorage;
import com.genersoft.iot.vmp.utils.DateUtil;
import com.genersoft.iot.vmp.utils.SerializeUtils;
import gov.nist.javax.sdp.TimeDescriptionImpl;
import gov.nist.javax.sdp.fields.TimeField;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
@@ -22,21 +34,17 @@
import org.springframework.stereotype.Component;

import javax.sdp.*;
import javax.sip.InvalidArgumentException;
import javax.sip.RequestEvent;
import javax.sip.ServerTransaction;
import javax.sip.SipException;
import javax.sip.*;
import javax.sip.address.SipURI;
import javax.sip.header.FromHeader;
import javax.sip.header.CallIdHeader;
import javax.sip.message.Request;
import javax.sip.message.Response;
import java.text.ParseException;
import java.time.Instant;
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
@@ -50,16 +58,22 @@
   private SIPCommanderFroPlatform cmderFroPlatform;

   @Autowired
   private IVideoManagerStorager storager;
   private IVideoManagerStorage storager;

   @Autowired
   private IRedisCatchStorage  redisCatchStorage;

   @Autowired
   private DynamicTask dynamicTask;

   @Autowired
   private SIPCommander cmder;

   @Autowired
   private IPlayService playService;

   @Autowired
   private ISIPCommander commander;

   @Autowired
   private ZLMRTPServerFactory zlmrtpServerFactory;
@@ -69,6 +83,16 @@

   @Autowired
   private SIPProcessorObserver sipProcessorObserver;

   @Autowired
   private VideoStreamSessionManager sessionManager;

   @Autowired
   private UserSetting userSetting;

   @Autowired
   private ZLMMediaListManager mediaListManager;


   @Override
   public void afterPropertiesSet() throws Exception {
@@ -88,26 +112,26 @@
      try {
         Request request = evt.getRequest();
         SipURI sipURI = (SipURI) request.getRequestURI();
         String channelId = sipURI.getUser();
         String requesterId = null;

         FromHeader fromHeader = (FromHeader)request.getHeader(FromHeader.NAME);
         AddressImpl address = (AddressImpl) fromHeader.getAddress();
         SipUri uri = (SipUri) address.getURI();
         requesterId = uri.getUser();

         //从subject读取channelId,不再从request-line读取。 有些平台request-line是平台国标编码，不是设备国标编码。
         //String channelId = sipURI.getUser();
         String channelId = SipUtils.getChannelIdFromHeader(request);
         String requesterId = SipUtils.getUserIdFromFromHeader(request);
         CallIdHeader callIdHeader = (CallIdHeader)request.getHeader(CallIdHeader.NAME);
         if (requesterId == null || channelId == null) {
            logger.info("无法从FromHeader的Address中获取到平台id，返回400");
            responseAck(evt, Response.BAD_REQUEST); // 参数不全， 发400，请求错误
            return;
         }

         // 查询请求方是否上级平台
         // 查询请求是否来自上级平台\设备
         ParentPlatform platform = storager.queryParentPlatByServerGBId(requesterId);
         if (platform != null) {
         if (platform == null) {
            inviteFromDeviceHandle(evt, requesterId);
         }else {
            // 查询平台下是否有该通道
            DeviceChannel channel = storager.queryChannelInParentPlatform(requesterId, channelId);
            GbStream gbStream = storager.queryStreamInParentPlatform(requesterId, channelId);
            PlatformCatalog catalog = storager.getCatalog(channelId);
            MediaServerItem mediaServerItem = null;
            // 不是通道可能是直播流
            if (channel != null && gbStream == null ) {
@@ -122,17 +146,14 @@
               mediaServerItem = mediaServerService.getOne(mediaServerId);
               if (mediaServerItem == null) {
                  logger.info("[ app={}, stream={} ]找不到zlm {}，返回410",gbStream.getApp(), gbStream.getStream(), mediaServerId);
                  responseAck(evt, Response.GONE, "media server not found");
                  return;
               }
               Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream());
               if (!streamReady ) {
                  logger.info("[ app={}, stream={} ]通道离线，返回400",gbStream.getApp(), gbStream.getStream());
                  responseAck(evt, Response.BAD_REQUEST, "channel [" + gbStream.getGbId() + "] offline");
                  responseAck(evt, Response.GONE);
                  return;
               }
               responseAck(evt, Response.CALL_IS_BEING_FORWARDED); // 通道存在，发181，呼叫转接中
            }else {
            }else if (catalog != null) {
               responseAck(evt, Response.BAD_REQUEST, "catalog channel can not play"); // 目录不支持点播
               return;
            } else {
               logger.info("通道不存在，返回404");
               responseAck(evt, Response.NOT_FOUND); // 通道不存在，发404，资源不存在
               return;
@@ -140,19 +161,41 @@
            // 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);
            }
            String sessionName = sdp.getSessionName().getValue();

            Long startTime = null;
            Long stopTime = null;
            Instant start = null;
            Instant end = null;
            if (sdp.getTimeDescriptions(false) != null && sdp.getTimeDescriptions(false).size() > 0) {
               TimeDescriptionImpl timeDescription = (TimeDescriptionImpl)(sdp.getTimeDescriptions(false).get(0));
               TimeField startTimeFiled = (TimeField)timeDescription.getTime();
               startTime = startTimeFiled.getStartTime();
               stopTime = startTimeFiled.getStopTime();

               start = Instant.ofEpochMilli(startTime*1000);
               end = Instant.ofEpochMilli(stopTime*1000);
            }
            //  获取支持的格式
            Vector mediaDescriptions = sdp.getMediaDescriptions(true);
            // 查看是否支持PS 负载96
            //String ip = null;
            int port = -1;
            //boolean recvonly = false;
            boolean mediaTransmissionTCP = false;
            Boolean tcpActive = null;
            for (Object description : mediaDescriptions) {
@@ -172,6 +215,9 @@
                        mediaTransmissionTCP = true;
                        if ("active".equals(setup)) {
                           tcpActive = true;
                           // 不支持tcp主动
                           responseAck(evt, Response.NOT_IMPLEMENTED, "tcp active not support"); // 目录不支持点播
                           return;
                        } else if ("passive".equals(setup)) {
                           tcpActive = false;
                        }
@@ -188,7 +234,7 @@
            }
            String username = sdp.getOrigin().getUsername();
            String addressStr = sdp.getOrigin().getAddress();
            //String sessionName = sdp.getSessionName().getValue();

            logger.info("[上级点播]用户：{}， 地址：{}:{}， ssrc：{}", username, addressStr, port, ssrc);
            Device device  = null;
            // 通过 channel 和 gbStream 是否为null 值判断来源是直播流合适国标
@@ -216,23 +262,34 @@
                  responseAck(evt, Response.BUSY_HERE);
                  return;
               }

               // 写入redis， 超时时回复
               redisCatchStorage.updateSendRTPSever(sendRtpItem);
               // 通知下级推流，
               PlayResult playResult = playService.play(mediaServerItem,device.getDeviceId(), channelId, (mediaServerItemInUSe, responseJSON)->{
                  // 收到推流， 回复200OK, 等待ack
                  // if (sendRtpItem == null) return;
               sendRtpItem.setCallId(callIdHeader.getCallId());
               sendRtpItem.setPlayType("Play".equals(sessionName)?InviteStreamType.PLAY:InviteStreamType.PLAYBACK);
               byte[] dialogByteArray = SerializeUtils.serialize(evt.getDialog());
               sendRtpItem.setDialog(dialogByteArray);
               byte[] transactionByteArray = SerializeUtils.serialize(evt.getServerTransaction());
               sendRtpItem.setTransaction(transactionByteArray);
               Long finalStartTime = startTime;
               Long finalStopTime = stopTime;
               ZLMHttpHookSubscribe.Event hookEvent = (mediaServerItemInUSe, responseJSON)->{
                  String app = responseJSON.getString("app");
                  String stream = responseJSON.getString("stream");
                  logger.info("[上级点播]下级已经开始推流。 回复200OK(SDP)， {}/{}", app, stream);
                  //     * 0 等待设备推流上来
                  //     * 1 下级已经推流，等待上级平台回复ack
                  //     * 2 推流中
                  sendRtpItem.setStatus(1);
                  redisCatchStorage.updateSendRTPSever(sendRtpItem);
                  // TODO 添加对tcp的支持

                  StringBuffer content = new StringBuffer(200);
                  content.append("v=0\r\n");
                  content.append("o="+ channelId +" 0 0 IN IP4 "+mediaServerItemInUSe.getSdpIp()+"\r\n");
                  content.append("s=Play\r\n");
                  content.append("s=" + sessionName+"\r\n");
                  content.append("c=IN IP4 "+mediaServerItemInUSe.getSdpIp()+"\r\n");
                  content.append("t=0 0\r\n");
                  if ("Playback".equals(sessionName)) {
                     content.append("t=" + finalStartTime + " " + finalStopTime + "\r\n");
                  }else {
                     content.append("t=0 0\r\n");
                  }
                  content.append("m=video "+ sendRtpItem.getLocalPort()+" RTP/AVP 96\r\n");
                  content.append("a=sendonly\r\n");
                  content.append("a=rtpmap:96 PS/90000\r\n");
@@ -240,7 +297,15 @@
                  content.append("f=\r\n");

                  try {
                     responseAck(evt, content.toString());
                     // 超时未收到Ack应该回复bye,当前等待时间为10秒
                     dynamicTask.startDelay(callIdHeader.getCallId(), ()->{
                        logger.info("Ack 等待超时");
                        mediaServerService.releaseSsrc(mediaServerItemInUSe.getId(), ssrc);
                        // 回复bye
                        cmderFroPlatform.streamByeCmd(platform, callIdHeader.getCallId());
                     }, 60*1000);
                     responseSdpAck(evt, content.toString(), platform);

                  } catch (SipException e) {
                     e.printStackTrace();
                  } catch (InvalidArgumentException e) {
@@ -248,131 +313,188 @@
                  } catch (ParseException e) {
                     e.printStackTrace();
                  }
               } ,((event) -> {
               };
               SipSubscribe.Event errorEvent = ((event) -> {
                  // 未知错误。直接转发设备点播的错误
                  Response response = null;
                  try {
                     response = getMessageFactory().createResponse(event.statusCode, evt.getRequest());
                     ServerTransaction serverTransaction = getServerTransaction(evt);
                     serverTransaction.sendResponse(response);
                     if (serverTransaction.getDialog() != null) serverTransaction.getDialog().delete();
                     if (serverTransaction.getDialog() != null) {
                        serverTransaction.getDialog().delete();
                     }
                  } catch (ParseException | SipException | InvalidArgumentException e) {
                     e.printStackTrace();
                  }
               }));
               if (logger.isDebugEnabled()) {
                  logger.debug(playResult.getResult().toString());
               }

            }else if (gbStream != null) {
               SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId,
                     gbStream.getApp(), gbStream.getStream(), channelId,
                     mediaTransmissionTCP);

               if (tcpActive != null) {
                  sendRtpItem.setTcpActive(tcpActive);
               }
               if (sendRtpItem == null) {
                  logger.warn("服务器端口资源不足");
                  responseAck(evt, Response.BUSY_HERE);
                  return;
               }

               // 写入redis， 超时时回复
               redisCatchStorage.updateSendRTPSever(sendRtpItem);

               sendRtpItem.setStatus(1);
               redisCatchStorage.updateSendRTPSever(sendRtpItem);
               // TODO 添加对tcp的支持
               StringBuffer content = new StringBuffer(200);
               content.append("v=0\r\n");
               content.append("o="+ channelId +" 0 0 IN IP4 "+mediaServerItem.getSdpIp()+"\r\n");
               content.append("s=Play\r\n");
               content.append("c=IN IP4 "+mediaServerItem.getSdpIp()+"\r\n");
               content.append("t=0 0\r\n");
               content.append("m=video "+ sendRtpItem.getLocalPort()+" RTP/AVP 96\r\n");
               content.append("a=sendonly\r\n");
               content.append("a=rtpmap:96 PS/90000\r\n");
               content.append("y="+ ssrc + "\r\n");
               content.append("f=\r\n");

               try {
                  responseAck(evt, content.toString());
               } catch (SipException e) {
                  e.printStackTrace();
               } catch (InvalidArgumentException e) {
                  e.printStackTrace();
               } catch (ParseException e) {
                  e.printStackTrace();
               }
            }

         } else {
            // 非上级平台请求，查询是否设备请求（通常为接收语音广播的设备）
            Device device = storager.queryVideoDevice(requesterId);
            if (device != null) {
               logger.info("收到设备" + requesterId + "的语音广播Invite请求");
               responseAck(evt, Response.TRYING);

               String contentString = new String(request.getRawContent());
               // jainSip不支持y=字段， 移除移除以解析。
               String substring = contentString;
               String ssrc = "0000000404";
               int ssrcIndex = contentString.indexOf("y=");
               if (ssrcIndex > 0) {
                  substring = contentString.substring(0, ssrcIndex);
                  ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
               }
               ssrcIndex = substring.indexOf("f=");
               if (ssrcIndex > 0) {
                  substring = contentString.substring(0, ssrcIndex);
               }
               SessionDescription sdp = SdpFactory.getInstance().createSessionDescription(substring);

               //  获取支持的格式
               Vector mediaDescriptions = sdp.getMediaDescriptions(true);
               // 查看是否支持PS 负载96
               int port = -1;
               //boolean recvonly = false;
               boolean mediaTransmissionTCP = false;
               Boolean tcpActive = null;
               for (int i = 0; i < mediaDescriptions.size(); i++) {
                  MediaDescription mediaDescription = (MediaDescription)mediaDescriptions.get(i);
                  Media media = mediaDescription.getMedia();

                  Vector mediaFormats = media.getMediaFormats(false);
                  if (mediaFormats.contains("8")) {
                     port = media.getMediaPort();
                     String protocol = media.getProtocol();
                     // 区分TCP发流还是udp， 当前默认udp
                     if ("TCP/RTP/AVP".equals(protocol)) {
                        String setup = mediaDescription.getAttribute("setup");
                        if (setup != null) {
                           mediaTransmissionTCP = true;
                           if ("active".equals(setup)) {
                              tcpActive = true;
                           } else if ("passive".equals(setup)) {
                              tcpActive = false;
               });
               sendRtpItem.setApp("rtp");
               if ("Playback".equals(sessionName)) {
                  sendRtpItem.setPlayType(InviteStreamType.PLAYBACK);
                  SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, null, true, true);
                  sendRtpItem.setStreamId(ssrcInfo.getStream());
                  // 写入redis， 超时时回复
                  redisCatchStorage.updateSendRTPSever(sendRtpItem);
                  playService.playBack(mediaServerItem, ssrcInfo, device.getDeviceId(), channelId, DateUtil.formatter.format(start),
                        DateUtil.formatter.format(end), null, result -> {
                        if (result.getCode() != 0){
                           logger.warn("录像回放失败");
                           if (result.getEvent() != null) {
                              errorEvent.response(result.getEvent());
                           }
                           redisCatchStorage.deleteSendRTPServer(platform.getServerGBId(), channelId, callIdHeader.getCallId(), null);
                           try {
                              responseAck(evt, Response.REQUEST_TIMEOUT);
                           } catch (SipException e) {
                              e.printStackTrace();
                           } catch (InvalidArgumentException e) {
                              e.printStackTrace();
                           } catch (ParseException e) {
                              e.printStackTrace();
                           }
                        }else {
                           if (result.getMediaServerItem() != null) {
                              hookEvent.response(result.getMediaServerItem(), result.getResponse());
                           }
                        }
                     });
               }else {
                  sendRtpItem.setPlayType(InviteStreamType.PLAY);
                  SsrcTransaction playTransaction = sessionManager.getSsrcTransaction(device.getDeviceId(), channelId, "play", null);
                  if (playTransaction != null) {
                     Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, "rtp", playTransaction.getStream());
                     if (!streamReady) {
                        playTransaction = null;
                     }
                     break;
                  }
                  if (playTransaction == null) {
                     String streamId = null;
                     if (mediaServerItem.isRtpEnable()) {
                        streamId = String.format("%s_%s", device.getDeviceId(), channelId);
                     }
                     SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, streamId, true, false);
                     sendRtpItem.setStreamId(ssrcInfo.getStream());
                     // 写入redis， 超时时回复
                     redisCatchStorage.updateSendRTPSever(sendRtpItem);
                     playService.play(mediaServerItem, ssrcInfo, device, channelId, hookEvent, errorEvent, (code, msg)->{
                        redisCatchStorage.deleteSendRTPServer(platform.getServerGBId(), channelId, callIdHeader.getCallId(), null);
                     }, null);
                  }else {
                     sendRtpItem.setStreamId(playTransaction.getStream());
                     // 写入redis， 超时时回复
                     redisCatchStorage.updateSendRTPSever(sendRtpItem);
                     JSONObject jsonObject = new JSONObject();
                     jsonObject.put("app", sendRtpItem.getApp());
                     jsonObject.put("stream", sendRtpItem.getStreamId());
                     hookEvent.response(mediaServerItem, jsonObject);
                  }
               }
               if (port == -1) {
                  logger.info("不支持的媒体格式，返回415");
                  // 回复不支持的格式
                  responseAck(evt, Response.UNSUPPORTED_MEDIA_TYPE); // 不支持的格式，发415
                  return;
               }
               String username = sdp.getOrigin().getUsername();
               String addressStr = sdp.getOrigin().getAddress();
               logger.info("设备{}请求语音流，地址：{}:{}，ssrc：{}", username, addressStr, port, ssrc);
            }else if (gbStream != null) {

            } else {
               logger.warn("来自无效设备/平台的请求");
               responseAck(evt, Response.BAD_REQUEST);
               Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream());
               if (!streamReady ) {
                  if ("proxy".equals(gbStream.getStreamType())) {
                     // TODO 控制启用以使设备上线
                     logger.info("[ app={}, stream={} ]通道离线，启用流后开始推流",gbStream.getApp(), gbStream.getStream());
                     responseAck(evt, Response.BAD_REQUEST, "channel [" + gbStream.getGbId() + "] offline");
                  }else if ("push".equals(gbStream.getStreamType())) {
                     if (!platform.isStartOfflinePush()) {
                        responseAck(evt, Response.TEMPORARILY_UNAVAILABLE, "channel unavailable");
                        return;
                     }
                     // 发送redis消息以使设备上线
                     logger.info("[ app={}, stream={} ]通道离线，发送redis信息控制设备开始推流",gbStream.getApp(), gbStream.getStream());
                     MessageForPushChannel messageForPushChannel = new MessageForPushChannel();
                     messageForPushChannel.setType(1);
                     messageForPushChannel.setGbId(gbStream.getGbId());
                     messageForPushChannel.setApp(gbStream.getApp());
                     messageForPushChannel.setStream(gbStream.getStream());
                     // TODO 获取低负载的节点
                     messageForPushChannel.setMediaServerId(gbStream.getMediaServerId());
                     messageForPushChannel.setPlatFormId(platform.getServerGBId());
                     messageForPushChannel.setPlatFormName(platform.getName());
                     redisCatchStorage.sendStreamPushRequestedMsg(messageForPushChannel);
                     // 设置超时
                     dynamicTask.startDelay(callIdHeader.getCallId(), ()->{
                        logger.info("[ app={}, stream={} ] 等待设备开始推流超时", gbStream.getApp(), gbStream.getStream());
                        try {
                           mediaListManager.removedChannelOnlineEventLister(gbStream.getGbId());
                           responseAck(evt, Response.REQUEST_TIMEOUT); // 超时
                        } catch (SipException e) {
                           e.printStackTrace();
                        } catch (InvalidArgumentException e) {
                           e.printStackTrace();
                        } catch (ParseException e) {
                           e.printStackTrace();
                        }
                     }, userSetting.getPlatformPlayTimeout());
                     // 添加监听
                     MediaServerItem finalMediaServerItem = mediaServerItem;
                     int finalPort = port;
                     boolean finalMediaTransmissionTCP = mediaTransmissionTCP;
                     Boolean finalTcpActive = tcpActive;
                     mediaListManager.addChannelOnlineEventLister(gbStream.getGbId(), (app, stream)->{
                        SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(finalMediaServerItem, addressStr, finalPort, ssrc, requesterId,
                              app, stream, channelId, finalMediaTransmissionTCP);

                        if (sendRtpItem == null) {
                           logger.warn("服务器端口资源不足");
                           try {
                              responseAck(evt, Response.BUSY_HERE);
                           } catch (SipException e) {
                              e.printStackTrace();
                           } catch (InvalidArgumentException e) {
                              e.printStackTrace();
                           } catch (ParseException e) {
                              e.printStackTrace();
                           }
                           return;
                        }
                        if (finalTcpActive != null) {
                           sendRtpItem.setTcpActive(finalTcpActive);
                        }
                        sendRtpItem.setPlayType(InviteStreamType.PUSH);
                        // 写入redis， 超时时回复
                        sendRtpItem.setStatus(1);
                        sendRtpItem.setCallId(callIdHeader.getCallId());
                        byte[] dialogByteArray = SerializeUtils.serialize(evt.getDialog());
                        sendRtpItem.setDialog(dialogByteArray);
                        byte[] transactionByteArray = SerializeUtils.serialize(evt.getServerTransaction());
                        sendRtpItem.setTransaction(transactionByteArray);
                        redisCatchStorage.updateSendRTPSever(sendRtpItem);
                        sendStreamAck(finalMediaServerItem, sendRtpItem, platform, evt);

                     });
                  }
               }else {
                  SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId,
                        gbStream.getApp(), gbStream.getStream(), channelId,
                        mediaTransmissionTCP);


                  if (sendRtpItem == null) {
                     logger.warn("服务器端口资源不足");
                     responseAck(evt, Response.BUSY_HERE);
                     return;
                  }
                  if (tcpActive != null) {
                     sendRtpItem.setTcpActive(tcpActive);
                  }
                  sendRtpItem.setPlayType(InviteStreamType.PUSH);
                  // 写入redis， 超时时回复
                  sendRtpItem.setStatus(1);
                  sendRtpItem.setCallId(callIdHeader.getCallId());
                  byte[] dialogByteArray = SerializeUtils.serialize(evt.getDialog());
                  sendRtpItem.setDialog(dialogByteArray);
                  byte[] transactionByteArray = SerializeUtils.serialize(evt.getServerTransaction());
                  sendRtpItem.setTransaction(transactionByteArray);
                  redisCatchStorage.updateSendRTPSever(sendRtpItem);
                  sendStreamAck(mediaServerItem, sendRtpItem, platform, evt);
               }


            }

         }

      } catch (SipException | InvalidArgumentException | ParseException e) {
@@ -385,4 +507,107 @@
         e.printStackTrace();
      }
   }

   public void sendStreamAck(MediaServerItem mediaServerItem, SendRtpItem sendRtpItem, ParentPlatform platform, RequestEvent evt){

      StringBuffer content = new StringBuffer(200);
      content.append("v=0\r\n");
      content.append("o="+ sendRtpItem.getChannelId() +" 0 0 IN IP4 "+ mediaServerItem.getSdpIp()+"\r\n");
      content.append("s=Play\r\n");
      content.append("c=IN IP4 "+mediaServerItem.getSdpIp()+"\r\n");
      content.append("t=0 0\r\n");
      content.append("m=video "+ sendRtpItem.getLocalPort()+" RTP/AVP 96\r\n");
      content.append("a=sendonly\r\n");
      content.append("a=rtpmap:96 PS/90000\r\n");
      if (sendRtpItem.isTcp()) {
         content.append("a=connection:new\r\n");
         if (!sendRtpItem.isTcpActive()) {
            content.append("a=setup:active\r\n");
         }else {
            content.append("a=setup:passive\r\n");
         }
      }
      content.append("y="+ sendRtpItem.getSsrc() + "\r\n");
      content.append("f=\r\n");

      try {
         responseSdpAck(evt, content.toString(), platform);
      } catch (SipException e) {
         e.printStackTrace();
      } catch (InvalidArgumentException e) {
         e.printStackTrace();
      } catch (ParseException e) {
         e.printStackTrace();
      }
   }

   public void inviteFromDeviceHandle(RequestEvent evt, String requesterId) throws InvalidArgumentException, ParseException, SipException, SdpException {

      // 非上级平台请求，查询是否设备请求（通常为接收语音广播的设备）
      Device device = redisCatchStorage.getDevice(requesterId);
      Request request = evt.getRequest();
      if (device != null) {
         logger.info("收到设备" + requesterId + "的语音广播Invite请求");
         responseAck(evt, Response.TRYING);

         String contentString = new String(request.getRawContent());
         // jainSip不支持y=字段， 移除移除以解析。
         String substring = contentString;
         String ssrc = "0000000404";
         int ssrcIndex = contentString.indexOf("y=");
         if (ssrcIndex > 0) {
            substring = contentString.substring(0, ssrcIndex);
            ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
         }
         ssrcIndex = substring.indexOf("f=");
         if (ssrcIndex > 0) {
            substring = contentString.substring(0, ssrcIndex);
         }
         SessionDescription sdp = SdpFactory.getInstance().createSessionDescription(substring);

         //  获取支持的格式
         Vector mediaDescriptions = sdp.getMediaDescriptions(true);
         // 查看是否支持PS 负载96
         int port = -1;
         //boolean recvonly = false;
         boolean mediaTransmissionTCP = false;
         Boolean tcpActive = null;
         for (int i = 0; i < mediaDescriptions.size(); i++) {
            MediaDescription mediaDescription = (MediaDescription)mediaDescriptions.get(i);
            Media media = mediaDescription.getMedia();

            Vector mediaFormats = media.getMediaFormats(false);
            if (mediaFormats.contains("8")) {
               port = media.getMediaPort();
               String protocol = media.getProtocol();
               // 区分TCP发流还是udp， 当前默认udp
               if ("TCP/RTP/AVP".equals(protocol)) {
                  String setup = mediaDescription.getAttribute("setup");
                  if (setup != null) {
                     mediaTransmissionTCP = true;
                     if ("active".equals(setup)) {
                        tcpActive = true;
                     } else if ("passive".equals(setup)) {
                        tcpActive = false;
                     }
                  }
               }
               break;
            }
         }
         if (port == -1) {
            logger.info("不支持的媒体格式，返回415");
            // 回复不支持的格式
            responseAck(evt, Response.UNSUPPORTED_MEDIA_TYPE); // 不支持的格式，发415
            return;
         }
         String username = sdp.getOrigin().getUsername();
         String addressStr = sdp.getOrigin().getAddress();
         logger.info("设备{}请求语音流，地址：{}:{}，ssrc：{}", username, addressStr, port, ssrc);

      } else {
         logger.warn("来自无效设备/平台的请求");
         responseAck(evt, Response.BAD_REQUEST);
      }
   }
}