broodjeaap/streamwatcher
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added some more comments to stream.go

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This commit is contained in:
BroodjeAap 2020-08-18 19:02:41 +00:00
parent 31aaa3db30
commit 62ac74c782
1 changed files with 5 additions and 2 deletions
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7
stream.go
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@ -59,13 +59,14 @@ func (s *Stream) Update() {
resp, err := http.Get(s.URL)
if err != nil {
log.Println(err)
s.Timeouts++
s.Timeouts++ // For increasing the Interval time every timeout
return
}
s.Timeouts = 0
img, err := ioutil.ReadAll(resp.Body)
defer resp.Body.Close()
// Get the image from the response and write it to disk in a goroutine
mat, err := gocv.IMDecode(img, gocv.IMReadColor)
if err != nil {
log.Println("Could not IMDecode img", err)
@ -73,6 +74,7 @@ func (s *Stream) Update() {
}
go gocv.IMWrite(s.GetCurrentColorInstantPath(), mat)
// Turn the current image into greyscale and also write that to disk in a goroutine
currentGrey := gocv.NewMat()
gocv.CvtColor(mat, &currentGrey, gocv.ColorBGRAToGray)
gocv.GaussianBlur(currentGrey, &currentGrey, image.Point{X: 21, Y: 21}, 0, 0, gocv.BorderReflect)
@ -81,7 +83,7 @@ func (s *Stream) Update() {
if !s.PreviousInstantPathExists() {
return
}
// If there is a previous image saved to disk, calculate the difference between the two and amplify those differences
diff := gocv.NewMat()
previousGrey := s.IMReadPrevious()
gocv.AbsDiff(previousGrey, currentGrey, &diff)
@ -94,6 +96,7 @@ func (s *Stream) Update() {
diff.CopyTo(&debug)
gocv.CvtColor(debug, &debug, gocv.ColorGrayToBGRA)
// Get the contours and check if they are in any of the WatchAreas
contours := gocv.FindContours(diff, gocv.RetrievalExternal, gocv.ChainApproxSimple)
s.MotionDetected = false
for _, watchArea := range s.WatchAreas {