fix camera logic

src/components/FaceRecognition/FaceRecognition.vue

@@ -80,6 +80,12 @@ export default {
           if (stream) {
             video.srcObject = stream;
             video.play();
+            if (video.readyState !== 4 || !video.srcObject.active) {
+              this.$Message.error({
+                content: "摄像头没有正常启用",
+                duration: 5
+              });
+            }
           } else {
             this.$Message.error("没有可用的视频流");
           }
@@ -152,7 +158,7 @@ export default {
     async getSnapShot() {
       return new Promise((resolve, reject) => {
         const video = this.$refs.video;
-        if (video.readyState !== 4 && video.srcObject.active) {
+        if (video.readyState !== 4 || !video.srcObject.active) {
           this.$Message.error({ content: "摄像头没有正常启用", duration: 5 });
           reject("摄像头没有正常启用");
           this.logout();