Detect arithmetic progression

pkg/utils/streamable.go

@@ -0,0 +1,11 @@
+package utils
+
+import "strings"
+
+func IsStreamable(filePath string) bool {
+	return strings.HasSuffix(filePath, ".mkv") ||
+		strings.HasSuffix(filePath, ".mp4") ||
+		strings.HasSuffix(filePath, ".avi") ||
+		strings.HasSuffix(filePath, ".wmv") ||
+		strings.HasSuffix(filePath, ".m4v")
+}