old mode 100644
new mode 100755
 |  |  | 
 |  |  | package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl; | 
 |  |  |  | 
 |  |  | import com.alibaba.fastjson2.JSON; | 
 |  |  | import com.alibaba.fastjson2.JSONObject; | 
 |  |  | import com.genersoft.iot.vmp.common.StreamInfo; | 
 |  |  | import com.genersoft.iot.vmp.conf.DynamicTask; | 
 |  |  | import com.genersoft.iot.vmp.conf.UserSetting; | 
 |  |  | 
 |  |  | 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.ZLMMediaListManager; | 
 |  |  | import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory; | 
 |  |  | import com.genersoft.iot.vmp.media.zlm.ZLMServerFactory; | 
 |  |  | import com.genersoft.iot.vmp.media.zlm.ZlmHttpHookSubscribe; | 
 |  |  | import com.genersoft.iot.vmp.media.zlm.dto.*; | 
 |  |  | import com.genersoft.iot.vmp.service.IMediaServerService; | 
 |  |  | import com.genersoft.iot.vmp.service.IPlayService; | 
 |  |  | import com.genersoft.iot.vmp.service.IStreamProxyService; | 
 |  |  | import com.genersoft.iot.vmp.service.IStreamPushService; | 
 |  |  | import com.genersoft.iot.vmp.media.zlm.dto.hook.OnStreamChangedHookParam; | 
 |  |  | import com.genersoft.iot.vmp.service.*; | 
 |  |  | import com.genersoft.iot.vmp.service.bean.ErrorCallback; | 
 |  |  | import com.genersoft.iot.vmp.service.bean.InviteErrorCode; | 
 |  |  | import com.genersoft.iot.vmp.service.bean.MessageForPushChannel; | 
 |  |  | 
 |  |  | import javax.sip.message.Response; | 
 |  |  | import java.text.ParseException; | 
 |  |  | import java.time.Instant; | 
 |  |  | import java.util.HashMap; | 
 |  |  | import java.util.Map; | 
 |  |  | import java.util.Random; | 
 |  |  | import java.util.Vector; | 
 |  |  |  | 
 |  |  | 
 |  |  |     private IRedisCatchStorage redisCatchStorage; | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  |     private IInviteStreamService inviteStreamService; | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  |     private SSRCFactory ssrcFactory; | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  | 
 |  |  |     private SIPSender sipSender; | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  |     private ZLMRTPServerFactory zlmrtpServerFactory; | 
 |  |  |     private ZLMServerFactory zlmServerFactory; | 
 |  |  |  | 
 |  |  |     @Autowired | 
 |  |  |     private IMediaServerService mediaServerService; | 
 |  |  | 
 |  |  |                 // 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); | 
 |  |  |                 PlatformCatalog catalog = storager.getCatalog(requesterId, channelId); | 
 |  |  |  | 
 |  |  |                 MediaServerItem mediaServerItem = null; | 
 |  |  |                 StreamPushItem streamPushItem = null; | 
 |  |  | 
 |  |  |                             return; | 
 |  |  |                         } else { | 
 |  |  |                             streamPushItem = streamPushService.getPush(gbStream.getApp(), gbStream.getStream()); | 
 |  |  |                             if (streamPushItem == null || streamPushItem.getServerId().equals(userSetting.getServerId())) { | 
 |  |  |                                 logger.info("[ app={}, stream={} ]找不到zlm {},返回410", gbStream.getApp(), gbStream.getStream(), mediaServerId); | 
 |  |  |                                 try { | 
 |  |  |                                     responseAck(request, Response.GONE); | 
 |  |  |                                 } catch (SipException | InvalidArgumentException | ParseException e) { | 
 |  |  |                                     logger.error("[命令发送失败] invite GONE: {}", e.getMessage()); | 
 |  |  |                                 } | 
 |  |  |                                 return; | 
 |  |  |                             if (streamPushItem != null) { | 
 |  |  |                                 mediaServerItem = mediaServerService.getOne(streamPushItem.getMediaServerId()); | 
 |  |  |                             } | 
 |  |  |                             if (mediaServerItem == null) { | 
 |  |  |                                 mediaServerItem = mediaServerService.getDefaultMediaServer(); | 
 |  |  |                             } | 
 |  |  |                         } | 
 |  |  |                     } else { | 
 |  |  | 
 |  |  |                 // 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, 移除以解析。 | 
 |  |  |                 // 检查是否有y字段 | 
 |  |  |                 int ssrcIndex = contentString.indexOf("y="); | 
 |  |  |  | 
 |  |  |                 SessionDescription sdp; | 
 |  |  |                 if (ssrcIndex >= 0) { | 
 |  |  |                     //ssrc规定长度为10个字节,不取余下长度以避免后续还有“f=”字段 | 
 |  |  |                     String substring = contentString.substring(0, ssrcIndex); | 
 |  |  |                     sdp = SdpFactory.getInstance().createSessionDescription(substring); | 
 |  |  |                 } else { | 
 |  |  |                     sdp = SdpFactory.getInstance().createSessionDescription(contentString); | 
 |  |  |                 } | 
 |  |  |                 Gb28181Sdp gb28181Sdp = SipUtils.parseSDP(contentString); | 
 |  |  |                 SessionDescription sdp = gb28181Sdp.getBaseSdb(); | 
 |  |  |                 String sessionName = sdp.getSessionName().getValue(); | 
 |  |  |  | 
 |  |  |                 Long startTime = null; | 
 |  |  | 
 |  |  |                     } | 
 |  |  |  | 
 |  |  |                     String ssrc; | 
 |  |  |                     if (userSetting.getUseCustomSsrcForParentInvite() || ssrcIndex < 0) { | 
 |  |  |                     if (userSetting.getUseCustomSsrcForParentInvite() || gb28181Sdp.getSsrc() == null) { | 
 |  |  |                         // 上级平台点播时不使用上级平台指定的ssrc,使用自定义的ssrc,参考国标文档-点播外域设备媒体流SSRC处理方式 | 
 |  |  |                         ssrc = "Play".equalsIgnoreCase(sessionName) ? ssrcFactory.getPlaySsrc(mediaServerItem.getId()) : ssrcFactory.getPlayBackSsrc(mediaServerItem.getId()); | 
 |  |  |                     }else { | 
 |  |  |                         ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12); | 
 |  |  |                         ssrc = gb28181Sdp.getSsrc(); | 
 |  |  |                     } | 
 |  |  |                     String streamTypeStr = null; | 
 |  |  |                     if (mediaTransmissionTCP) { | 
 |  |  | 
 |  |  |                         streamTypeStr = "UDP"; | 
 |  |  |                     } | 
 |  |  |                     logger.info("[上级Invite] {}, 平台:{}, 通道:{}, 收流地址:{}:{},收流方式:{}, ssrc:{}", sessionName, username, channelId, addressStr, port, streamTypeStr, ssrc); | 
 |  |  |                     SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                     SendRtpItem sendRtpItem = zlmServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                             device.getDeviceId(), channelId, mediaTransmissionTCP, platform.isRtcp()); | 
 |  |  |  | 
 |  |  |                     if (tcpActive != null) { | 
 |  |  | 
 |  |  |                         content.append("y=" + sendRtpItem.getSsrc() + "\r\n"); | 
 |  |  |                         content.append("f=\r\n"); | 
 |  |  |  | 
 |  |  |  | 
 |  |  |                         try { | 
 |  |  |                             // 超时未收到Ack应该回复bye,当前等待时间为10秒 | 
 |  |  |                             dynamicTask.startDelay(callIdHeader.getCallId(), () -> { | 
 |  |  | 
 |  |  |                                 } | 
 |  |  |                             }, 60 * 1000); | 
 |  |  |                             responseSdpAck(request, content.toString(), platform); | 
 |  |  |  | 
 |  |  |                             // tcp主动模式,回复sdp后开启监听 | 
 |  |  |                             if (sendRtpItem.isTcpActive()) { | 
 |  |  |                                 MediaServerItem mediaInfo = mediaServerService.getOne(sendRtpItem.getMediaServerId()); | 
 |  |  |                                 Map<String, Object> param = new HashMap<>(12); | 
 |  |  |                                 param.put("vhost","__defaultVhost__"); | 
 |  |  |                                 param.put("app",sendRtpItem.getApp()); | 
 |  |  |                                 param.put("stream",sendRtpItem.getStreamId()); | 
 |  |  |                                 param.put("ssrc", sendRtpItem.getSsrc()); | 
 |  |  |                                 if (!sendRtpItem.isTcpActive()) { | 
 |  |  |                                     param.put("dst_url",sendRtpItem.getIp()); | 
 |  |  |                                     param.put("dst_port", sendRtpItem.getPort()); | 
 |  |  |                                 } | 
 |  |  |                                 String is_Udp = sendRtpItem.isTcp() ? "0" : "1"; | 
 |  |  |                                 param.put("is_udp", is_Udp); | 
 |  |  |                                 param.put("src_port", localPort); | 
 |  |  |                                 param.put("pt", sendRtpItem.getPt()); | 
 |  |  |                                 param.put("use_ps", sendRtpItem.isUsePs() ? "1" : "0"); | 
 |  |  |                                 param.put("only_audio", sendRtpItem.isOnlyAudio() ? "1" : "0"); | 
 |  |  |                                 if (!sendRtpItem.isTcp()) { | 
 |  |  |                                     // 开启rtcp保活 | 
 |  |  |                                     param.put("udp_rtcp_timeout", sendRtpItem.isRtcp()? "1":"0"); | 
 |  |  |                                 } | 
 |  |  |                                 JSONObject startSendRtpStreamResult = zlmServerFactory.startSendRtpStreamForPassive(mediaInfo, param); | 
 |  |  |                                 if (startSendRtpStreamResult != null) { | 
 |  |  |                                     startSendRtpStreamHand(evt, sendRtpItem, null, startSendRtpStreamResult, param, callIdHeader); | 
 |  |  |                                 } | 
 |  |  |                             } | 
 |  |  |                         } catch (SipException | InvalidArgumentException | ParseException e) { | 
 |  |  |                             logger.error("[命令发送失败] 国标级联 回复SdpAck", e); | 
 |  |  |                         } | 
 |  |  | 
 |  |  |                     sendRtpItem.setApp("rtp"); | 
 |  |  |                     if ("Playback".equalsIgnoreCase(sessionName)) { | 
 |  |  |                         sendRtpItem.setPlayType(InviteStreamType.PLAYBACK); | 
 |  |  |                         SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, null, null, device.isSsrcCheck(), true, 0, false, device.getStreamModeForParam()); | 
 |  |  |                         String startTimeStr = DateUtil.urlFormatter.format(start); | 
 |  |  |                         String endTimeStr = DateUtil.urlFormatter.format(end); | 
 |  |  |                         String stream = device.getDeviceId() + "_" + channelId + "_" + startTimeStr + "_" + endTimeStr; | 
 |  |  |                         SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, stream, null, device.isSsrcCheck(), true, 0, false, device.getStreamModeForParam()); | 
 |  |  |                         sendRtpItem.setStreamId(ssrcInfo.getStream()); | 
 |  |  |                         // 写入redis, 超时时回复 | 
 |  |  |                         redisCatchStorage.updateSendRTPSever(sendRtpItem); | 
 |  |  | 
 |  |  |                                         errorEvent.run(code, msg, data); | 
 |  |  |                                     } | 
 |  |  |                                 }); | 
 |  |  |                     }else if ("Download".equalsIgnoreCase(sessionName)) { | 
 |  |  |                     } else if ("Download".equalsIgnoreCase(sessionName)) { | 
 |  |  |                         // 获取指定的下载速度 | 
 |  |  |                         Vector sdpMediaDescriptions = sdp.getMediaDescriptions(true); | 
 |  |  |                         MediaDescription mediaDescription = null; | 
 |  |  |                         String downloadSpeed = "1"; | 
 |  |  |                         if (sdpMediaDescriptions.size() > 0) { | 
 |  |  |                             mediaDescription = (MediaDescription)sdpMediaDescriptions.get(0); | 
 |  |  |                             mediaDescription = (MediaDescription) sdpMediaDescriptions.get(0); | 
 |  |  |                         } | 
 |  |  |                         if (mediaDescription != null) { | 
 |  |  |                             downloadSpeed = mediaDescription.getAttribute("downloadspeed"); | 
 |  |  | 
 |  |  |                         playService.download(mediaServerItem, ssrcInfo, device.getDeviceId(), channelId, DateUtil.formatter.format(start), | 
 |  |  |                                 DateUtil.formatter.format(end), Integer.parseInt(downloadSpeed), | 
 |  |  |                                 (code, msg, data) -> { | 
 |  |  |                                     if (code == InviteErrorCode.SUCCESS.getCode()){ | 
 |  |  |                                     if (code == InviteErrorCode.SUCCESS.getCode()) { | 
 |  |  |                                         hookEvent.run(code, msg, data); | 
 |  |  |                                     }else if (code == InviteErrorCode.ERROR_FOR_SIGNALLING_TIMEOUT.getCode() || code == InviteErrorCode.ERROR_FOR_STREAM_TIMEOUT.getCode()){ | 
 |  |  |                                     } else if (code == InviteErrorCode.ERROR_FOR_SIGNALLING_TIMEOUT.getCode() || code == InviteErrorCode.ERROR_FOR_STREAM_TIMEOUT.getCode()) { | 
 |  |  |                                         logger.info("[录像下载]超时, 用户:{}, 通道:{}", username, channelId); | 
 |  |  |                                         redisCatchStorage.deleteSendRTPServer(platform.getServerGBId(), channelId, callIdHeader.getCallId(), null); | 
 |  |  |                                         errorEvent.run(code, msg, data); | 
 |  |  |                                     }else { | 
 |  |  |                                     } else { | 
 |  |  |                                         errorEvent.run(code, msg, data); | 
 |  |  |                                     } | 
 |  |  |                                 }); | 
 |  |  |                     }else { | 
 |  |  |                         sendRtpItem.setPlayType(InviteStreamType.PLAY); | 
 |  |  |                         String streamId = null; | 
 |  |  |                         if (mediaServerItem.isRtpEnable()) { | 
 |  |  |                             streamId = String.format("%s_%s", device.getDeviceId(), channelId); | 
 |  |  |                         }else { | 
 |  |  |                             streamId = String.format("%08x", Integer.parseInt(ssrc)).toUpperCase(); | 
 |  |  |                         } | 
 |  |  |                         sendRtpItem.setStreamId(streamId); | 
 |  |  |                         redisCatchStorage.updateSendRTPSever(sendRtpItem); | 
 |  |  |                         playService.play(mediaServerItem, device.getDeviceId(), channelId,false, ((code, msg, data) -> { | 
 |  |  |                             if (code == InviteErrorCode.SUCCESS.getCode()){ | 
 |  |  |                     } else { | 
 |  |  |  | 
 |  |  |                         SSRCInfo ssrcInfo = playService.play(mediaServerItem, device.getDeviceId(), channelId, ssrc, ((code, msg, data) -> { | 
 |  |  |                             if (code == InviteErrorCode.SUCCESS.getCode()) { | 
 |  |  |                                 hookEvent.run(code, msg, data); | 
 |  |  |                             }else if (code == InviteErrorCode.ERROR_FOR_SIGNALLING_TIMEOUT.getCode() || code == InviteErrorCode.ERROR_FOR_STREAM_TIMEOUT.getCode()){ | 
 |  |  |                             } else if (code == InviteErrorCode.ERROR_FOR_SIGNALLING_TIMEOUT.getCode() || code == InviteErrorCode.ERROR_FOR_STREAM_TIMEOUT.getCode()) { | 
 |  |  |                                 logger.info("[上级点播]超时, 用户:{}, 通道:{}", username, channelId); | 
 |  |  |                                 redisCatchStorage.deleteSendRTPServer(platform.getServerGBId(), channelId, callIdHeader.getCallId(), null); | 
 |  |  |                                 errorEvent.run(code, msg, data); | 
 |  |  |                             }else { | 
 |  |  |                             } else { | 
 |  |  |                                 errorEvent.run(code, msg, data); | 
 |  |  |                             } | 
 |  |  |                         })); | 
 |  |  |                         sendRtpItem.setPlayType(InviteStreamType.PLAY); | 
 |  |  |                         String streamId = String.format("%s_%s", device.getDeviceId(), channelId); | 
 |  |  |                         sendRtpItem.setStreamId(streamId); | 
 |  |  |                         sendRtpItem.setSsrc(ssrcInfo.getSsrc()); | 
 |  |  |                         redisCatchStorage.updateSendRTPSever(sendRtpItem); | 
 |  |  |  | 
 |  |  |                     } | 
 |  |  |                 } else if (gbStream != null) { | 
 |  |  |  | 
 |  |  |                     String ssrc; | 
 |  |  |                     if (userSetting.getUseCustomSsrcForParentInvite() || ssrcIndex < 0) { | 
 |  |  |                     if (userSetting.getUseCustomSsrcForParentInvite() || gb28181Sdp.getSsrc() == null) { | 
 |  |  |                         // 上级平台点播时不使用上级平台指定的ssrc,使用自定义的ssrc,参考国标文档-点播外域设备媒体流SSRC处理方式 | 
 |  |  |                         ssrc = "Play".equalsIgnoreCase(sessionName) ? ssrcFactory.getPlaySsrc(mediaServerItem.getId()) : ssrcFactory.getPlayBackSsrc(mediaServerItem.getId()); | 
 |  |  |                     }else { | 
 |  |  |                         ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12); | 
 |  |  |                         ssrc = gb28181Sdp.getSsrc(); | 
 |  |  |                     } | 
 |  |  |  | 
 |  |  |                     if("push".equals(gbStream.getStreamType())) { | 
 |  |  | 
 |  |  |         } | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     private void startSendRtpStreamHand(RequestEvent evt, SendRtpItem sendRtpItem, ParentPlatform parentPlatform, | 
 |  |  |                                         JSONObject jsonObject, Map<String, Object> param, CallIdHeader callIdHeader) { | 
 |  |  |         if (jsonObject == null) { | 
 |  |  |             logger.error("下级TCP被动启动监听失败: 请检查ZLM服务"); | 
 |  |  |         } else if (jsonObject.getInteger("code") == 0) { | 
 |  |  |             logger.info("调用ZLM-TCP被动推流接口, 结果: {}",  jsonObject); | 
 |  |  |             logger.info("启动监听TCP被动推流成功[ {}/{} ],{}->{}:{}, " ,param.get("app"), param.get("stream"), jsonObject.getString("local_port"), param.get("dst_url"), param.get("dst_port")); | 
 |  |  |         } else { | 
 |  |  |             logger.error("启动监听TCP被动推流失败: {}, 参数:{}",jsonObject.getString("msg"), JSON.toJSONString(param)); | 
 |  |  |         } | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     /** | 
 |  |  |      * 安排推流 | 
 |  |  |      */ | 
 |  |  | 
 |  |  |                             CallIdHeader callIdHeader, MediaServerItem mediaServerItem, | 
 |  |  |                             int port, Boolean tcpActive, boolean mediaTransmissionTCP, | 
 |  |  |                             String channelId, String addressStr, String ssrc, String requesterId) { | 
 |  |  |             Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream()); | 
 |  |  |             Boolean streamReady = zlmServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream()); | 
 |  |  |             if (streamReady != null && streamReady) { | 
 |  |  |                 // 自平台内容 | 
 |  |  |                 SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                 SendRtpItem sendRtpItem = zlmServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                         gbStream.getApp(), gbStream.getStream(), channelId, mediaTransmissionTCP, platform.isRtcp()); | 
 |  |  |  | 
 |  |  |                 if (sendRtpItem == null) { | 
 |  |  | 
 |  |  |                             String channelId, String addressStr, String ssrc, String requesterId) { | 
 |  |  |         // 推流 | 
 |  |  |         if (streamPushItem.isSelf()) { | 
 |  |  |             Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream()); | 
 |  |  |             Boolean streamReady = zlmServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream()); | 
 |  |  |             if (streamReady != null && streamReady) { | 
 |  |  |                 // 自平台内容 | 
 |  |  |                 SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                 SendRtpItem sendRtpItem = zlmServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId, | 
 |  |  |                         gbStream.getApp(), gbStream.getStream(), channelId, mediaTransmissionTCP, platform.isRtcp()); | 
 |  |  |  | 
 |  |  |                 if (sendRtpItem == null) { | 
 |  |  | 
 |  |  |             logger.info("[ app={}, stream={} ]通道未推流,启用流后开始推流", gbStream.getApp(), gbStream.getStream()); | 
 |  |  |             // 监听流上线 | 
 |  |  |             HookSubscribeForStreamChange hookSubscribe = HookSubscribeFactory.on_stream_changed(gbStream.getApp(), gbStream.getStream(), true, "rtsp", mediaServerItem.getId()); | 
 |  |  |             zlmHttpHookSubscribe.addSubscribe(hookSubscribe, (mediaServerItemInUSe, responseJSON) -> { | 
 |  |  |                 String app = responseJSON.getString("app"); | 
 |  |  |                 String stream = responseJSON.getString("stream"); | 
 |  |  |                 logger.info("[上级点播]拉流代理已经就绪, {}/{}", app, stream); | 
 |  |  |             zlmHttpHookSubscribe.addSubscribe(hookSubscribe, (mediaServerItemInUSe, hookParam) -> { | 
 |  |  |                 OnStreamChangedHookParam streamChangedHookParam = (OnStreamChangedHookParam)hookParam; | 
 |  |  |                 logger.info("[上级点播]拉流代理已经就绪, {}/{}", streamChangedHookParam.getApp(), streamChangedHookParam.getStream()); | 
 |  |  |                 dynamicTask.stop(callIdHeader.getCallId()); | 
 |  |  |                 pushProxyStream(evt, request, gbStream,  platform, callIdHeader, mediaServerItem, port, tcpActive, | 
 |  |  |                         mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId); | 
 |  |  | 
 |  |  |             mediaListManager.addChannelOnlineEventLister(gbStream.getApp(), gbStream.getStream(), (app, stream, serverId) -> { | 
 |  |  |                 dynamicTask.stop(callIdHeader.getCallId()); | 
 |  |  |                 if (serverId.equals(userSetting.getServerId())) { | 
 |  |  |                     SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, finalPort, ssrc, requesterId, | 
 |  |  |                     SendRtpItem sendRtpItem = zlmServerFactory.createSendRtpItem(mediaServerItem, addressStr, finalPort, ssrc, requesterId, | 
 |  |  |                             app, stream, channelId, mediaTransmissionTCP, platform.isRtcp()); | 
 |  |  |  | 
 |  |  |                     if (sendRtpItem == null) { | 
 |  |  | 
 |  |  |             } | 
 |  |  |             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 = null; | 
 |  |  |  | 
 |  |  |             try { | 
 |  |  |                 sdp = SdpFactory.getInstance().createSessionDescription(substring); | 
 |  |  |                 Gb28181Sdp gb28181Sdp = SipUtils.parseSDP(contentString); | 
 |  |  |                 SessionDescription sdp = gb28181Sdp.getBaseSdb(); | 
 |  |  |                 //  获取支持的格式 | 
 |  |  |                 Vector mediaDescriptions = sdp.getMediaDescriptions(true); | 
 |  |  |                 // 查看是否支持PS 负载96 |