diff --git a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
index 57217964..a4f3b5e7 100755
--- a/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
+++ b/src/main/java/com/genersoft/iot/vmp/gb28181/transmit/event/request/impl/InviteRequestProcessor.java
@@ -18,10 +18,7 @@ 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.media.zlm.dto.hook.OnStreamChangedHookParam;
-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.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;
@@ -79,6 +76,9 @@ public class InviteRequestProcessor extends SIPRequestProcessorParent implements
     @Autowired
     private IRedisCatchStorage redisCatchStorage;
 
+    @Autowired
+    private IInviteStreamService inviteStreamService;
+
     @Autowired
     private SSRCFactory ssrcFactory;
 
@@ -479,47 +479,55 @@ public class InviteRequestProcessor extends SIPRequestProcessorParent implements
                                         errorEvent.run(code, msg, data);
                                     }
                                 });
-                    } else {
-                        sendRtpItem.setPlayType(InviteStreamType.PLAY);
-                        sendRtpItem.setPlayType(InviteStreamType.PLAY);
-//                        SsrcTransaction playTransaction = sessionManager.getSsrcTransaction(device.getDeviceId(), channelId, "play", null);
-                        StreamInfo streamInfo = redisCatchStorage.queryPlayByDevice(device.getDeviceId(), channelId);
-                        if (streamInfo != null) {
-                            Boolean streamReady = zlmServerFactory.isStreamReady(mediaServerItem, streamInfo.getApp(), streamInfo.getStream());
-                            if (!streamReady) {
-                                redisCatchStorage.stopPlay(streamInfo);
-                                storager.stopPlay(streamInfo.getDeviceID(), streamInfo.getChannelId());
-                                streamInfo = null;
-                            }
+                    } 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);
+                        }
+                        if (mediaDescription != null) {
+                            downloadSpeed = mediaDescription.getAttribute("downloadspeed");
                         }
-                        if (streamInfo == null) {
-                            String streamId = null;
-                            if (mediaServerItem.isRtpEnable()) {
-                                streamId = String.format("%s_%s", device.getDeviceId(), channelId);
-                            }
-                            SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, streamId, null, device.isSsrcCheck(), false, 0, false, device.getStreamModeForParam());
-                            logger.info(JSONObject.toJSONString(ssrcInfo));
-                            sendRtpItem.setStreamId(ssrcInfo.getStream());
-                            sendRtpItem.setSsrc(ssrc);
 
-                            // 写入redis， 超时时回复
-                            redisCatchStorage.updateSendRTPSever(sendRtpItem);
-                            MediaServerItem finalMediaServerItem = mediaServerItem;
-                            playService.play(mediaServerItem, ssrcInfo, device, channelId, hookEvent, errorEvent, (code, msg) -> {
+                        sendRtpItem.setPlayType(InviteStreamType.DOWNLOAD);
+                        SSRCInfo ssrcInfo = mediaServerService.openRTPServer(mediaServerItem, null, null, device.isSsrcCheck(), true, 0, false, device.getStreamModeForParam());
+                        sendRtpItem.setStreamId(ssrcInfo.getStream());
+                        // 写入redis， 超时时回复
+                        redisCatchStorage.updateSendRTPSever(sendRtpItem);
+                        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()) {
+                                        hookEvent.run(code, msg, data);
+                                    } 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 {
+                                        errorEvent.run(code, msg, data);
+                                    }
+                                });
+                    } 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()) {
                                 logger.info("[上级点播]超时, 用户：{}， 通道：{}", username, channelId);
                                 redisCatchStorage.deleteSendRTPServer(platform.getServerGBId(), channelId, callIdHeader.getCallId(), null);
-                            });
-                        } else {
-                            // 当前系统作为下级平台使用，当上级平台点播时不携带ssrc时，并且设备在当前系统中已经点播了。这个时候需要重新给生成一个ssrc，不使用默认的"0000000000"。
-                            sendRtpItem.setSsrc(ssrc);
-                            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);
-                        }
+                                errorEvent.run(code, msg, data);
+                            } 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) {