From dd86398394e3afed2afd6ee8051c1f1dc5ec032c Mon Sep 17 00:00:00 2001
From: BroodjeAap <davidzessen@gmail.com>
Date: Sat, 11 Jul 2020 11:15:07 +0000
Subject: [PATCH] removed instant update stuff from stream

---
 main.go   | 20 +-------------------
 stream.go | 17 +++++++++++++----
 2 files changed, 14 insertions(+), 23 deletions(-)

diff --git a/main.go b/main.go
index e392dc4..9f26a04 100755
--- a/main.go
+++ b/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"encoding/json"
-	"image"
 	"io/ioutil"
 	"log"
 	"net/http"
@@ -58,24 +57,7 @@ func (server Server) stream(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	mat := stream.GetStreamInstant()
-
-	diff := gocv.NewMat()
-	mat.CopyTo(&diff)
-	gocv.CvtColor(diff, &diff, gocv.ColorBGRAToGray)
-	gocv.GaussianBlur(diff, &diff, image.Point{X: 21, Y: 21}, 0, 0, gocv.BorderReflect)
-
-	go stream.SaveStreamInstant(mat)
-
-	if stream.PreviousInstantPathExists() {
-		previous := stream.IMReadPrevious()
-
-		gocv.GaussianBlur(previous, &previous, image.Point{X: 21, Y: 21}, 0, 0, gocv.BorderReflect)
-
-		gocv.AbsDiff(previous, diff, &diff)
-
-		gocv.Threshold(diff, &diff, 25, 255, gocv.ThresholdBinary)
-	}
+	mat := stream.IMReadCurrentColor()
 
 	jpg, err := gocv.IMEncode(".jpg", mat)
 	if err != nil {
diff --git a/stream.go b/stream.go
index 4a8e5ac..59327a9 100755
--- a/stream.go
+++ b/stream.go
@@ -51,10 +51,19 @@ func (s Stream) Update() {
 	}
 	go gocv.IMWrite(s.GetCurrentColorInstantPath(), mat)
 
-	grey := gocv.NewMat()
-	gocv.CvtColor(mat, &grey, gocv.ColorBGRAToGray)
-	gocv.GaussianBlur(grey, &grey, image.Point{X: 21, Y: 21}, 0, 0, gocv.BorderReflect)
-	go s.SaveStreamInstant(grey)
+	currentGrey := gocv.NewMat()
+	gocv.CvtColor(mat, &currentGrey, gocv.ColorBGRAToGray)
+	gocv.GaussianBlur(currentGrey, &currentGrey, image.Point{X: 21, Y: 21}, 0, 0, gocv.BorderReflect)
+	go s.SaveStreamInstant(currentGrey)
+
+	if !s.PreviousInstantPathExists() {
+		return
+	}
+
+	diff := gocv.NewMat()
+	previousGrey := s.IMReadPrevious()
+	gocv.AbsDiff(previousGrey, currentGrey, &diff)
+	gocv.Threshold(diff, &diff, 10, 255, gocv.ThresholdBinary)
 }
 
 // UpdateInterval calls Update() every interval