648540858
2022-09-05 aa6bce35c710750b68d4e6c53095e9be4e1afd8d
src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
@@ -1,25 +1,33 @@
package com.genersoft.iot.vmp.gb28181.transmit.event.request.impl;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.genersoft.iot.vmp.conf.DynamicTask;
import com.genersoft.iot.vmp.conf.SipConfig;
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.AudioBroadcastManager;
import com.genersoft.iot.vmp.gb28181.session.VideoStreamSessionManager;
import com.genersoft.iot.vmp.gb28181.transmit.SIPProcessorObserver;
import com.genersoft.iot.vmp.gb28181.transmit.callback.DeferredResultHolder;
import com.genersoft.iot.vmp.gb28181.transmit.callback.RequestMessage;
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.ZlmHttpHookSubscribe;
import com.genersoft.iot.vmp.media.zlm.ZLMMediaListManager;
import com.genersoft.iot.vmp.media.zlm.ZLMRESTfulUtils;
import com.genersoft.iot.vmp.media.zlm.ZLMRTPServerFactory;
import com.genersoft.iot.vmp.media.zlm.dto.MediaServerItem;
import com.genersoft.iot.vmp.media.zlm.dto.StreamPushItem;
import com.genersoft.iot.vmp.media.zlm.dto.*;
import com.genersoft.iot.vmp.service.IMediaServerService;
import com.genersoft.iot.vmp.service.IMediaService;
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.service.bean.MessageForPushChannel;
import com.genersoft.iot.vmp.service.bean.SSRCInfo;
@@ -28,8 +36,12 @@
import com.genersoft.iot.vmp.storager.IVideoManagerStorage;
import com.genersoft.iot.vmp.utils.DateUtil;
import com.genersoft.iot.vmp.utils.SerializeUtils;
import com.genersoft.iot.vmp.vmanager.bean.AudioBroadcastResult;
import com.genersoft.iot.vmp.vmanager.bean.WVPResult;
import gov.nist.javax.sdp.TimeDescriptionImpl;
import gov.nist.javax.sdp.fields.TimeField;
import gov.nist.javax.sip.message.SIPRequest;
import gov.nist.javax.sip.stack.SIPDialog;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.InitializingBean;
@@ -38,7 +50,6 @@
import javax.sdp.*;
import javax.sip.*;
import javax.sip.address.SipURI;
import javax.sip.header.CallIdHeader;
import javax.sip.message.Request;
import javax.sip.message.Response;
@@ -67,6 +78,9 @@
    private IStreamPushService streamPushService;
    @Autowired
    private IStreamProxyService streamProxyService;
    @Autowired
    private IRedisCatchStorage redisCatchStorage;
    @Autowired
@@ -81,11 +95,20 @@
    @Autowired
    private ISIPCommander commander;
   @Autowired
   private AudioBroadcastManager audioBroadcastManager;
    @Autowired
    private ZLMRTPServerFactory zlmrtpServerFactory;
    @Autowired
    private IMediaServerService mediaServerService;
    @Autowired
    private IMediaService mediaService;
   @Autowired
   private ZLMRESTfulUtils zlmresTfulUtils;
    @Autowired
    private SIPProcessorObserver sipProcessorObserver;
@@ -98,6 +121,16 @@
    @Autowired
    private ZLMMediaListManager mediaListManager;
   @Autowired
   private DeferredResultHolder resultHolder;
   @Autowired
   private ZlmHttpHookSubscribe subscribe;
   @Autowired
   private SipConfig config;
    @Autowired
@@ -120,10 +153,7 @@
        //  Invite Request消息实现,此消息一般为级联消息,上级给下级发送请求视频指令
        try {
            Request request = evt.getRequest();
            SipURI sipUri = (SipURI) request.getRequestURI();
            //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 channelId = SipUtils.getChannelIdFromRequest(request);
            String requesterId = SipUtils.getUserIdFromFromHeader(request);
            CallIdHeader callIdHeader = (CallIdHeader) request.getHeader(CallIdHeader.NAME);
            if (requesterId == null || channelId == null) {
@@ -136,7 +166,7 @@
            // 查询请求是否来自上级平台\设备
            ParentPlatform platform = storager.queryParentPlatByServerGBId(requesterId);
            if (platform == null) {
                inviteFromDeviceHandle(evt, requesterId);
                inviteFromDeviceHandle(evt, requesterId, channelId);
            } else {
                // 查询平台下是否有该通道
                DeviceChannel channel = storager.queryChannelInParentPlatform(requesterId, channelId);
@@ -145,6 +175,7 @@
                MediaServerItem mediaServerItem = null;
                StreamPushItem streamPushItem = null;
                StreamProxyItem proxyByAppAndStream =null;
                // 不是通道可能是直播流
                if (channel != null && gbStream == null) {
                    if (channel.getStatus() == 0) {
@@ -174,6 +205,13 @@
                        if ("push".equals(gbStream.getStreamType())) {
                            streamPushItem = streamPushService.getPush(gbStream.getApp(), gbStream.getStream());
                            if (streamPushItem == null) {
                                logger.info("[ app={}, stream={} ]找不到zlm {},返回410", gbStream.getApp(), gbStream.getStream(), mediaServerId);
                                responseAck(evt, Response.GONE);
                                return;
                            }
                        }else if("proxy".equals(gbStream.getStreamType())){
                            proxyByAppAndStream = streamProxyService.getStreamProxyByAppAndStream(gbStream.getApp(), gbStream.getStream());
                            if (proxyByAppAndStream == null) {
                                logger.info("[ app={}, stream={} ]找不到zlm {},返回410", gbStream.getApp(), gbStream.getStream(), mediaServerId);
                                responseAck(evt, Response.GONE);
                                return;
@@ -240,16 +278,16 @@
                        String protocol = media.getProtocol();
                        // 区分TCP发流还是udp, 当前默认udp
                        if ("TCP/RTP/AVP".equals(protocol)) {
                        if ("TCP/RTP/AVP".equalsIgnoreCase(protocol)) {
                            String setup = mediaDescription.getAttribute("setup");
                            if (setup != null) {
                                mediaTransmissionTCP = true;
                                if ("active".equals(setup)) {
                                if ("active".equalsIgnoreCase(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)) {
                                } else if ("passive".equalsIgnoreCase(setup)) {
                                    tcpActive = false;
                                }
                            }
@@ -294,11 +332,11 @@
                        return;
                    }
                    sendRtpItem.setCallId(callIdHeader.getCallId());
                    sendRtpItem.setPlayType("Play".equals(sessionName) ? InviteStreamType.PLAY : InviteStreamType.PLAYBACK);
                    sendRtpItem.setPlayType("Play".equalsIgnoreCase(sessionName) ? InviteStreamType.PLAY : InviteStreamType.PLAYBACK);
                    Long finalStartTime = startTime;
                    Long finalStopTime = stopTime;
                    ZLMHttpHookSubscribe.Event hookEvent = (mediaServerItemInUSe, responseJSON) -> {
                    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);
@@ -313,7 +351,7 @@
                        content.append("o=" + channelId + " 0 0 IN IP4 " + mediaServerItemInUSe.getSdpIp() + "\r\n");
                        content.append("s=" + sessionName + "\r\n");
                        content.append("c=IN IP4 " + mediaServerItemInUSe.getSdpIp() + "\r\n");
                        if ("Playback".equals(sessionName)) {
                        if ("Playback".equalsIgnoreCase(sessionName)) {
                            content.append("t=" + finalStartTime + " " + finalStopTime + "\r\n");
                        } else {
                            content.append("t=0 0\r\n");
@@ -357,7 +395,7 @@
                        }
                    });
                    sendRtpItem.setApp("rtp");
                    if ("Playback".equals(sessionName)) {
                    if ("Playback".equalsIgnoreCase(sessionName)) {
                        sendRtpItem.setPlayType(InviteStreamType.PLAYBACK);
                        SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, null, true, true);
                        sendRtpItem.setStreamId(ssrcInfo.getStream());
@@ -401,6 +439,7 @@
                                streamId = String.format("%s_%s", device.getDeviceId(), channelId);
                            }
                            SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, streamId, null, device.isSsrcCheck(), false);
                            logger.info(JSONObject.toJSONString(ssrcInfo));
                            sendRtpItem.setStreamId(ssrcInfo.getStream());
                            // 写入redis, 超时时回复
                            redisCatchStorage.updateSendRTPSever(sendRtpItem);
@@ -419,14 +458,33 @@
                        }
                    }
                } else if (gbStream != null) {
                    if (streamPushItem != null && streamPushItem.isStatus()) {
                        // 在线状态
                        pushStream(evt, gbStream, streamPushItem, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                    } else {
                        // 不在线 拉起
                        notifyStreamOnline(evt, gbStream, streamPushItem, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                    if("push".equals(gbStream.getStreamType())) {
                        if (streamPushItem != null && streamPushItem.isPushIng()) {
                            // 推流状态
                            pushStream(evt, gbStream, streamPushItem, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                    mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                        } else {
                            // 未推流 拉起
                            notifyStreamOnline(evt, gbStream, streamPushItem, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                    mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                        }
                    }else if ("proxy".equals(gbStream.getStreamType())){
                        if(null != proxyByAppAndStream &&proxyByAppAndStream.isStatus()){
                            pushProxyStream(evt, gbStream,  platform, callIdHeader, mediaServerItem, port, tcpActive,
                                    mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                        }else{
                            //开启代理拉流
                            boolean start1 = streamProxyService.start(gbStream.getApp(), gbStream.getStream());
                            if(start1) {
                                pushProxyStream(evt, gbStream,  platform, callIdHeader, mediaServerItem, port, tcpActive,
                                        mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                            }else{
                                //失败后通知
                                notifyStreamOnline(evt, gbStream, null, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                        mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
                            }
                        }
                    }
                }
            }
@@ -445,13 +503,45 @@
    /**
     * 安排推流
     */
    private void pushProxyStream(RequestEvent evt, GbStream gbStream, ParentPlatform platform,
                            CallIdHeader callIdHeader, MediaServerItem mediaServerItem,
                            int port, Boolean tcpActive, boolean mediaTransmissionTCP,
                            String channelId, String addressStr, String ssrc, String requesterId) throws InvalidArgumentException, ParseException, SipException {
            Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream());
            if (streamReady) {
                // 自平台内容
                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);
        }
    }
    private void pushStream(RequestEvent evt, GbStream gbStream, StreamPushItem streamPushItem, ParentPlatform platform,
                            CallIdHeader callIdHeader, MediaServerItem mediaServerItem,
                            int port, Boolean tcpActive, boolean mediaTransmissionTCP,
                            String channelId, String addressStr, String ssrc, String requesterId) throws InvalidArgumentException, ParseException, SipException {
        // 推流
        if (streamPushItem.getServerId().equals(userSetting.getServerId())) {
        if (streamPushItem.isSelf()) {
            Boolean streamReady = zlmrtpServerFactory.isStreamReady(mediaServerItem, gbStream.getApp(), gbStream.getStream());
            if (streamReady) {
                // 自平台内容
@@ -490,7 +580,6 @@
        }
    }
    /**
     * 通知流上线
     */
@@ -500,7 +589,7 @@
                                    String channelId, String addressStr, String ssrc, String requesterId) throws InvalidArgumentException, ParseException, SipException {
        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());
            logger.info("[ app={}, stream={} ]通道未推流,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()) {
@@ -508,7 +597,7 @@
                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());
            logger.info("[ app={}, stream={} ]通道未推流,发送redis信息控制设备开始推流", gbStream.getApp(), gbStream.getStream());
            MessageForPushChannel messageForPushChannel = MessageForPushChannel.getInstance(1,
                    gbStream.getApp(), gbStream.getStream(), gbStream.getGbId(), gbStream.getPlatformId(),
@@ -518,7 +607,7 @@
            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());
                    mediaListManager.removedChannelOnlineEventLister(gbStream.getApp(), gbStream.getStream());
                    responseAck(evt, Response.REQUEST_TIMEOUT); // 超时
                } catch (SipException e) {
                    e.printStackTrace();
@@ -533,7 +622,7 @@
            Boolean finalTcpActive = tcpActive;
            // 添加在本机上线的通知
            mediaListManager.addChannelOnlineEventLister(gbStream.getGbId(), (app, stream, serverId) -> {
            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,
@@ -621,7 +710,7 @@
                            // 离线
                            // 查询是否在本机上线了
                            StreamPushItem currentStreamPushItem = streamPushService.getPush(streamPushItem.getApp(), streamPushItem.getStream());
                            if (currentStreamPushItem.isStatus()) {
                            if (currentStreamPushItem.isPushIng()) {
                                // 在线状态
                                pushStream(evt, gbStream, streamPushItem, platform, callIdHeader, mediaServerItem, port, tcpActive,
                                        mediaTransmissionTCP, channelId, addressStr, ssrc, requesterId);
@@ -687,10 +776,16 @@
        }
    }
    public void inviteFromDeviceHandle(RequestEvent evt, String requesterId) throws InvalidArgumentException, ParseException, SipException, SdpException {
    public void inviteFromDeviceHandle(RequestEvent evt, String requesterId, String channelId) 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);
        AudioBroadcastCatch audioBroadcastCatch = audioBroadcastManager.get(requesterId, channelId);
        if (audioBroadcastCatch == null) {
            logger.warn("来自设备的Invite请求非语音广播,已忽略,requesterId: {}/{}", requesterId, channelId);
            responseAck(evt, Response.FORBIDDEN);
            return;
        }
        Request request = evt.getRequest();
        if (device != null) {
            logger.info("收到设备" + requesterId + "的语音广播Invite请求");
@@ -703,7 +798,7 @@
            int ssrcIndex = contentString.indexOf("y=");
            if (ssrcIndex > 0) {
                substring = contentString.substring(0, ssrcIndex);
                ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12);
                ssrc = contentString.substring(ssrcIndex + 2, ssrcIndex + 12).trim();
            }
            ssrcIndex = substring.indexOf("f=");
            if (ssrcIndex > 0) {
@@ -713,13 +808,13 @@
            //  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);
                MediaDescription mediaDescription = (MediaDescription)mediaDescriptions.get(i);
                Media media = mediaDescription.getMedia();
                Vector mediaFormats = media.getMediaFormats(false);
@@ -747,10 +842,164 @@
                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);
            logger.info("设备{}请求语音流,地址:{}:{},ssrc:{}", requesterId, addressStr, port, ssrc);
            MediaServerItem mediaServerItem = playService.getNewMediaServerItem(device);
            if (mediaServerItem == null) {
                logger.warn("未找到可用的zlm");
                responseAck(evt, Response.BUSY_HERE);
                return;
            }
            SendRtpItem sendRtpItem = zlmrtpServerFactory.createSendRtpItem(mediaServerItem, addressStr, port, ssrc, requesterId,
                    device.getDeviceId(), audioBroadcastCatch.getChannelId(),
                    mediaTransmissionTCP);
            if (sendRtpItem == null) {
                logger.warn("服务器端口资源不足");
                responseAck(evt, Response.BUSY_HERE);
                return;
            }
            sendRtpItem.setTcp(mediaTransmissionTCP);
            if (tcpActive != null) {
                sendRtpItem.setTcpActive(tcpActive);
            }
            String app = "broadcast";
            String stream = device.getDeviceId() + "_" + audioBroadcastCatch.getChannelId();
            CallIdHeader callIdHeader = (CallIdHeader) request.getHeader(CallIdHeader.NAME);
            sendRtpItem.setPlayType(InviteStreamType.PLAY);
            sendRtpItem.setCallId(callIdHeader.getCallId());
            sendRtpItem.setPlatformId(requesterId);
            sendRtpItem.setStatus(1);
            sendRtpItem.setApp(app);
            sendRtpItem.setStreamId(stream);
            sendRtpItem.setPt(8);
            sendRtpItem.setUsePs(false);
            sendRtpItem.setOnlyAudio(true);
            redisCatchStorage.updateSendRTPSever(sendRtpItem);
            // hook监听等待设备推流上来
            // 添加订阅
            HookSubscribeForStreamChange subscribeKey = HookSubscribeFactory.on_stream_changed(app, stream, true, "rtsp", mediaServerItem.getId());
            String finalSsrc = ssrc;
            // 流已经存在时直接推流
                // 设置等待推流的超时; 默认20s
                String waiteStreamTimeoutTaskKey = "waite-stream-" + device.getDeviceId() + audioBroadcastCatch.getChannelId();
                dynamicTask.startDelay(waiteStreamTimeoutTaskKey, ()->{
                    logger.info("等待推流超时: {}/{}", app, stream);
                    subscribe.removeSubscribe(subscribeKey);
                    playService.stopAudioBroadcast(device.getDeviceId(), audioBroadcastCatch.getChannelId());
                    // 发送bye
                    try {
                        responseAck(evt, Response.BUSY_HERE);
                    } catch (SipException e) {
                        throw new RuntimeException(e);
                    } catch (InvalidArgumentException e) {
                        throw new RuntimeException(e);
                    } catch (ParseException e) {
                        throw new RuntimeException(e);
                    }
                }, 20*1000);
                boolean finalMediaTransmissionTCP = mediaTransmissionTCP;
                subscribe.addSubscribe(subscribeKey,
                        (MediaServerItem mediaServerItemInUse, JSONObject json)->{
                            logger.info("收到语音对讲推流");
                            dynamicTask.stop(waiteStreamTimeoutTaskKey);
                            MediaItem mediaItem = JSON.toJavaObject(json, MediaItem.class);
                            Integer audioCodecId = null;
                            if (mediaItem.getTracks() != null && mediaItem.getTracks().size() > 0) {
                                for (int i = 0; i < mediaItem.getTracks().size(); i++) {
                                    MediaItem.MediaTrack mediaTrack = mediaItem.getTracks().get(i);
                                    if (mediaTrack.getCodecType() == 1) {
                                        audioCodecId = mediaTrack.getCodecId();
                                        break;
                                    }
                                }
                            }
                            try {
                                sendRtpItem.setStatus(2);
                                redisCatchStorage.updateSendRTPSever(sendRtpItem);
                                StringBuffer content = new StringBuffer(200);
                                content.append("v=0\r\n");
                                content.append("o="+ config.getId() +" "+ sdp.getOrigin().getSessionId() +" " + sdp.getOrigin().getSessionVersion()  + " 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");
                                if (audioCodecId == null) {
                                    if (finalMediaTransmissionTCP) {
                                        content.append("m=audio "+ sendRtpItem.getLocalPort()+" TCP/RTP/AVP 8\r\n");
                                    }else {
                                        content.append("m=audio "+ sendRtpItem.getLocalPort()+" RTP/AVP 8\r\n");
                                    }
                                    content.append("a=rtpmap:8 PCMA/8000\r\n");
                                }else {
                                    if (audioCodecId == 4) {
                                        if (finalMediaTransmissionTCP) {
                                            content.append("m=audio "+ sendRtpItem.getLocalPort()+" TCP/RTP/AVP 0\r\n");
                                        }else {
                                            content.append("m=audio "+ sendRtpItem.getLocalPort()+" RTP/AVP 0\r\n");
                                        }
                                        content.append("a=rtpmap:0 PCMU/8000\r\n");
                                    }else {
                                        if (finalMediaTransmissionTCP) {
                                            content.append("m=audio "+ sendRtpItem.getLocalPort()+" TCP/RTP/AVP 8\r\n");
                                        }else {
                                            content.append("m=audio "+ sendRtpItem.getLocalPort()+" RTP/AVP 8\r\n");
                                        }
                                        content.append("a=rtpmap:8 PCMA/8000\r\n");
                                    }
                                }
                                content.append("a=sendonly\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="+ finalSsrc + "\r\n");
                                content.append("f=v/////a/1/8/1\r\n");
                                ParentPlatform parentPlatform = new ParentPlatform();
                                parentPlatform.setServerIP(device.getIp());
                                parentPlatform.setServerPort(device.getPort());
                                parentPlatform.setServerGBId(device.getDeviceId());
                                responseSdpAck(evt, content.toString(), parentPlatform);
                                Dialog dialog = evt.getDialog();
                                audioBroadcastCatch.setDialog((SIPDialog) dialog);
                                audioBroadcastCatch.setRequest((SIPRequest) request);
                                audioBroadcastManager.update(audioBroadcastCatch);
                            } catch (SipException e) {
                                throw new RuntimeException(e);
                            } catch (InvalidArgumentException e) {
                                throw new RuntimeException(e);
                            } catch (ParseException e) {
                                throw new RuntimeException(e);
                            } catch (SdpParseException e) {
                                throw new RuntimeException(e);
                            }
                        });
//            }
            String key = DeferredResultHolder.CALLBACK_CMD_BROADCAST + device.getDeviceId();
            WVPResult<AudioBroadcastResult> wvpResult = new WVPResult<>();
            wvpResult.setCode(0);
            wvpResult.setMsg("success");
            AudioBroadcastResult audioBroadcastResult = new AudioBroadcastResult();
            audioBroadcastResult.setApp(app);
            audioBroadcastResult.setStream(stream);
            audioBroadcastResult.setStreamInfo(mediaService.getStreamInfoByAppAndStream(mediaServerItem, app, stream, null, null, null,false));
            audioBroadcastResult.setCodec("G.711");
            wvpResult.setData(audioBroadcastResult);
            RequestMessage requestMessage = new RequestMessage();
            requestMessage.setKey(key);
            requestMessage.setData(wvpResult);
            resultHolder.invokeAllResult(requestMessage);
        } else {
            logger.warn("来自无效设备/平台的请求");
            responseAck(evt, Response.BAD_REQUEST);