使用分离方式，修改视频流返回方式,使用redis存是否在获取

handler/tool.go

@@ -34,7 +34,7 @@ func SetUpToolGroup(router *gin.Engine) {
 }
 
 // 跨域访问：cross  origin resource share
-func CrosHandler() gin.HandlerFunc {
+func CorsHandler() gin.HandlerFunc {
 	return func(context *gin.Context) {
 		//method := context.Request.Method
 		context.Writer.Header().Set("Access-Control-Allow-Origin", "*")
@@ -105,14 +105,31 @@ func GetVideoStream(c *gin.Context) {
 	//设备流
 	c.Stream(func(w io.Writer) bool {
 		var count int
+		frame := gocv.NewMat()
+		defer func() {
+			//关闭帧
+			err4 := frame.Close()
+			if err4 != nil {
+				log.Printf("device:%d frame close err:%v", deviceID, err4)
+			}
+		}()
 		for {
-			frame, cnt := service.GetDeviceCurrentFrame(deviceID)
+			cnt := service.GetDeviceCurrentFrameV2(&frame, deviceID)
 			if cnt == count {
 				time.Sleep(50 * time.Millisecond)
 				continue
 			}
+			if frame.Empty() {
+				log.Printf("stream device:%d frame is empty", deviceID)
+				time.Sleep(100 * time.Millisecond)
+				continue
+			}
 			//gocv.Matrix转为jpeg
-			img, err := gocv.IMEncode(".jpg", frame)
+			img, err2 := gocv.IMEncode(".jpg", frame)
+			if err2 != nil {
+				log.Printf("stream img encode err:%v", err2)
+				return false
+			}
 			frame_ := img.GetBytes()
 
 			_, err = w.Write([]byte("--frame\r\nContent-Type: image/jpeg\r\n\r\n"))

main.go

@@ -35,7 +35,7 @@ func main() {
 	if err0 != nil {
 		panic("failed to connect redis:" + err0.Error())
 	}
-	r.Use(handler.CrosHandler())
+	r.Use(handler.CorsHandler())
 	r.Use(JWTAuthMiddleware()) // 使用 JWT 认证中间件
 	handler.SetUpToolGroup(r)  // Tool
 	err := worker.InitRedis()