big refacting of communitation architect

opencv-motion-detect/evcloudsvc-cloud-api.md

@@ -86,9 +86,9 @@ query configuration for edge device with specified sn
 set or change configuration for edge device
 ##### params
 - none
-##### return
+##### body
 - type: json
-- example:
+- example
 ```
 {
    "data":{
@@ -156,6 +156,12 @@ set or change configuration for edge device
    "lastupdated":1567669674
 }
 ```
+##### return
+- type: json
+- example:
+```
+{"code": 0, "msg":"ok", "data":JSON}
+```
 
 #### GET /keys
 ##### description

opencv-motion-detect/evcloudsvc.cpp

@@ -199,7 +199,6 @@ private:
                     }else{
                         this->peerData["config"][k] = v;
                     } 
-                    
                     // TODO: trigger msg
                 } // for evmgr
 

opencv-motion-detect/evslicer.cpp

@@ -359,13 +359,13 @@ protected:
                     spdlog::error("evslicer {} could not open output file {}", selfId, name);
                 }
             }
-            av_dict_set(&pOptsRemux, "segment_start_number", to_string(segHead).data(), 0);
+            av_dict_set(&pOptsRemux, "segment_start_number", to_string(segHead+1).data(), 0);
             ret = avformat_write_header(pAVFormatRemux, &pOptsRemux);
             if (ret < 0) {
                 spdlog::error("evslicer {} error occurred when opening output file", selfId);
             }
 
-            spdlog::info("evslicer {} writing new slice {}", selfId, name.c_str());
+            spdlog::info("evslicer {} start writing new slices", selfId);
             int pktIgnore = 0;
             while(true) {
                 int ret =zmq_msg_init(&msg);