evmlmotion: resize image

opencv-motion-detect/evmlmotion.cpp

@@ -50,6 +50,7 @@ struct DetectParam {
     float entropy;
     int maxDuration; // max event video length in minutes
     float resize;      // 
+    float size;
     cv::Point2f region[2];
 };
 
@@ -69,7 +70,7 @@ private:
     int iid;
     AVFormatContext *pAVFormatInput = nullptr;
     AVCodecContext *pCodecCtx = nullptr;
-    DetectParam detPara = {25, 500, -1, 3, 3, 30, 0.3, 25, 0,{{0,0},{0,0}}};
+    DetectParam detPara = {25, 500, -1, 3, 3, 30, 0.3, 25, 0, 540, {{0,0},{0,0}}};
     EventState evtState = EventState::NONE;
     // chrono::system_clock::time_point packetTm, evtStartTmLast, evtStartTmOrig;
     long long packetTm = 0, evtStartTmLast = 0, evtStartTmOrig = 0, evtStartTmPre = 0;
@@ -328,6 +329,13 @@ private:
                 }
             }
 
+            if(evmlmotion.count("size") == 0|| !evmlmotion["size"].is_number_integer() ||evmlmotion["size"] < 100 || evmlmotion["size"] > 540) {
+                spdlog::info("{} invalid size value. should be in [100, 540] as int value, default to {}", selfId, detPara.size);
+            }
+            else {
+                detPara.size = evmlmotion["size"];
+            }
+
             if(evmlmotion.count("region") != 0) {
                 json &region = evmlmotion["region"];
                 if(region.count("minX") == 0|| !region["minX"].is_number() || 
@@ -609,7 +617,7 @@ private:
 
         // auto config
         if(detPara.resize == 0) {
-            detPara.resize = 540*1.0/h;
+            detPara.resize = detPara.size*1.0/h;
         }
 
         if(detPara.resize  > 0 && detPara.resize < 1){