andrewhodel · December 1, 2022 05:07 · Dec 1, 2022
diff --git a/timelapse_tools.go b/timelapse_tools.go
@@ -0,0 +1,49 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+)
+
+func main() {
+
+	if (len(os.Args) < 3) {
+		log.Fatal("set first argument as directory, second argument as ffmpeg")
+	}
+
+	var path = os.Args[1]
+	var ffmpeg = os.Args[2]
+
+	if (path == "./") {
+		log.Fatal("cwd must not be source directory")
+	}
+
+	fmt.Println("The speed needs to be fast, .05 is 20 times faster than normal and it is too slow to be impressive.")
+	fmt.Println("Timelapses always look best with large zoomed out views, or slowly changing things.")
+
+	files, err := ioutil.ReadDir(os.Args[1])
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	var grid_s = ffmpeg
+	var shrink = ""
+
+	for _, file := range files {
+		var n = file.Name()
+
+		fmt.Println(ffmpeg + " -y -nostdin -i \"" + path + "/" + n + "\" -filter:v \"setpts=0.02*PTS\" -an \"./" + n + "\"")
+		shrink += ffmpeg + " -y -nostdin -i \"./" + n + "\"" + " -s 1280x720 \"./small-" + n + "\"" + "\n"
+
+		grid_s += " -i \"./small-" + n + "\""
+
+	}
+
+	grid_s += " -filter_complex \"[0:v][1:v][2:v]hstack=inputs=3[top];[3:v][4:v][5:v]hstack=inputs=3[mid];[6:v][7:v][8:v]hstack=inputs=3[bottom];[top][mid][bottom]vstack=inputs=3[v]\" -map \"[v]\" grid.mp4"
+
+	fmt.Println(shrink)
+	fmt.Println(grid_s)
+
+}