Refactor: Rename NanoKVM to BatchuKVM and update server URL

server/common/screen.go

@@ -0,0 +1,105 @@
+package common
+
+import "sync"
+
+type Screen struct {
+	Width   uint16
+	Height  uint16
+	FPS     int
+	Quality uint16
+	BitRate uint16
+	GOP     uint8
+}
+
+var (
+	screen     *Screen
+	screenOnce sync.Once
+)
+
+// ResolutionMap height to width
+var ResolutionMap = map[uint16]uint16{
+	1080: 1920,
+	720:  1280,
+	600:  800,
+	480:  640,
+	0:    0,
+}
+
+var QualityMap = map[uint16]bool{
+	100: true,
+	80:  true,
+	60:  true,
+	50:  true,
+}
+
+var BitRateMap = map[uint16]bool{
+	5000: true,
+	3000: true,
+	2000: true,
+	1000: true,
+}
+
+func GetScreen() *Screen {
+	screenOnce.Do(func() {
+		screen = &Screen{
+			Width:   0,
+			Height:  0,
+			Quality: 80,
+			FPS:     30,
+			BitRate: 3000,
+			GOP:     30,
+		}
+	})
+
+	return screen
+}
+
+func SetScreen(key string, value int) {
+	switch key {
+	case "resolution":
+		height := uint16(value)
+		if width, ok := ResolutionMap[height]; ok {
+			screen.Width = width
+			screen.Height = height
+		}
+
+	case "quality":
+		if value > 100 {
+			screen.BitRate = uint16(value)
+		} else {
+			screen.Quality = uint16(value)
+		}
+
+	case "fps":
+		screen.FPS = validateFPS(value)
+
+	case "gop":
+		screen.GOP = uint8(value)
+	}
+}
+
+func CheckScreen() {
+	if _, ok := ResolutionMap[screen.Height]; !ok {
+		screen.Width = 1920
+		screen.Height = 1080
+	}
+
+	if _, ok := QualityMap[screen.Quality]; !ok {
+		screen.Quality = 80
+	}
+
+	if _, ok := BitRateMap[screen.BitRate]; !ok {
+		screen.BitRate = 3000
+	}
+}
+
+func validateFPS(fps int) int {
+	if fps > 60 {
+		return 60
+	}
+	if fps < 10 {
+		return 10
+	}
+
+	return fps
+}