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检测 inputVideo 是否存在

Michael Wang 5 years ago
parent
726b028403
commit
a819e37358
1 changed files with 1 additions and 0 deletions
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  1. 1 0
      src/features/OnlineExam/Examing/FaceMotion/FaceMotion.vue

+ 1 - 0
src/features/OnlineExam/Examing/FaceMotion/FaceMotion.vue
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@@ -873,6 +873,7 @@ export default {
 
       await new Promise(resolve => {
 
       await new Promise(resolve => {
 
         const interval = setInterval(() => {
 
         const interval = setInterval(() => {
 
           if (
 
           if (
 
+            videoEl &&
 
             videoEl.readyState === 4 &&
 
             videoEl.readyState === 4 &&
 
             faceapi.nets.tinyFaceDetector.params &&
 
             faceapi.nets.tinyFaceDetector.params &&
 
             faceapi.nets.faceExpressionNet.params
 
             faceapi.nets.faceExpressionNet.params