Update

code/components/jomjol_flowcontroll/ClassFlowMakeImage.cpp

@@ -34,6 +34,7 @@ void ClassFlowMakeImage::SetInitialParameter(void)
     ImageSize = FRAMESIZE_VGA;
     SaveAllFiles = false;
     disabled = false;
+    FixedExposure = false;
     namerawimage =  "/sdcard/img_tmp/raw.jpg";
 }     
 
@@ -97,6 +98,11 @@ bool ClassFlowMakeImage::ReadParameter(FILE* pfile, string& aktparamgraph)
             _saturation = stoi(zerlegt[1]);
         }
 
+        if ((toUpper(zerlegt[0]) == "FIXEDEXPOSURE") && (zerlegt.size() > 1))
+        {
+            if (toUpper(zerlegt[1]) == "TRUE")
+                FixedExposure = true;
+        }
     }
 
     Camera.SetBrightnessContrastSaturation(_brightness, _contrast, _saturation);
@@ -107,6 +113,18 @@ bool ClassFlowMakeImage::ReadParameter(FILE* pfile, string& aktparamgraph)
     rawImage = new CImageBasis();
     rawImage->CreateEmptyImage(image_width, image_height, 3);
 
+    waitbeforepicture_store = waitbeforepicture;
+    if (FixedExposure)
+    {
+        printf("Fixed Exposure enabled!\n");
+        int flashdauer = (int) (waitbeforepicture * 1000);
+        Camera.EnableAutoExposure(flashdauer);
+        waitbeforepicture = 0.2;
+//        flashdauer = (int) (waitbeforepicture * 1000);
+//        takePictureWithFlash(flashdauer);
+//        rawImage->SaveToFile("/sdcard/init2.jpg");
+    }
+
     return true;
 }
 
@@ -121,7 +139,7 @@ bool ClassFlowMakeImage::doFlow(string zwtime)
 {
     string logPath = CreateLogFolder(zwtime);
 
-    int flashdauer = (int) waitbeforepicture * 1000;
+    int flashdauer = (int) (waitbeforepicture * 1000);
  
  #ifdef DEBUG_DETAIL_ON  
     LogFile.WriteHeapInfo("ClassFlowMakeImage::doFlow - Before takePictureWithFlash");
@@ -146,7 +164,7 @@ bool ClassFlowMakeImage::doFlow(string zwtime)
 
 esp_err_t ClassFlowMakeImage::SendRawJPG(httpd_req_t *req)
 {
-    int flashdauer = (int) waitbeforepicture * 1000;
+    int flashdauer = (int) (waitbeforepicture * 1000);
     return Camera.CaptureToHTTP(req, flashdauer);
 }
 
@@ -155,7 +173,7 @@ ImageData* ClassFlowMakeImage::SendRawImage()
 {
     CImageBasis *zw = new CImageBasis(rawImage);
     ImageData *id;
-    int flashdauer = (int) waitbeforepicture * 1000;
+    int flashdauer = (int) (waitbeforepicture * 1000);
     Camera.CaptureToBasisImage(zw, flashdauer);
     id = zw->writeToMemoryAsJPG();    
     delete zw;

code/components/jomjol_flowcontroll/ClassFlowMakeImage.h

@@ -15,6 +15,7 @@ class ClassFlowMakeImage :
 {
 protected:
     float waitbeforepicture;
+    float waitbeforepicture_store;
     framesize_t ImageSize;
     bool isImageSize;
     int ImageQuality;
@@ -22,6 +23,8 @@ protected:
     string namerawimage;
     int image_height, image_width;
     bool SaveAllFiles;
+    bool FixedExposure;
+
 
 
     void CopyFile(string input, string output);
@@ -29,6 +32,7 @@ protected:
     esp_err_t camera_capture();
     void takePictureWithFlash(int flashdauer);
 
+
     void SetInitialParameter(void);       
 
 public: