没有见过的奇葩上传视频功能，话不多说直接上代码

html：

<el-form-item label="图片上传" prop="imgUrl">
          <el-upload
              :action="picUrl"
              :headers="headers"
              :on-preview="handlePictureCardPreview"
              :file-list="imgList"
              :on-success="uploadPictureSuccess"
              :show-file-list="true"
              :on-remove="handleRemove"
              :on-change="uploadPictureChange"
              list-type="picture-card"
              :limit="1"
              class="videoUpload"
              >
              <video v-if="isShow"  width="100%" controls="controls" :src="dialogImageUrl" class="avatar"></video>
              <i v-else class="el-icon-plus"></i>
            </el-upload>
            <el-dialog :visible.sync="dialogVisible" append-to-body>
              <video width="100%" controls="controls" :src="dialogImageUrl"></video>
            </el-dialog>
        </el-form-item>

script：

import { deleteFileByName } from "@/api/ks/backgroundImg";
import { mapGetters } from 'vuex'

export default {
  name: "VideoList",
  computed: {
    ...mapGetters(['token']),
    headers() {
        return {
            "Authorization": this.token
        }
    },
  },
  data() {
    return {
      // 视频上传
      baseImgUrl:'https:....',
      hideUpload:false,
      limitCount:1,
      dialogImageUrl: '',
      dialogVisible: false,
      isShow:false,
      imgList:[],
      picUrl: '....',
   },
    methods: {
    // 视频上传
    handleRemove(file, fileList) {
      this.hideUpload = fileList.length >= this.limitCount;
      
      console.log(file, fileList);
      // 调删除图片接口
      deleteFileByName({fileName:this.form.url}).then(res=>{
        if (res.code == 200) {
          this.form.url = ''
          this.form.time = ''
          this.$message({
            message: res.msg,
            type: 'success'
          });
          this.isShow = false
        }
      })

    },
    handlePictureCardPreview(file) {
      console.log(file,file.url)
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },
    uploadPictureSuccess(res,file){
      var _this = this
            if (file.status == "success") {
              _this.$message({
                message:'上传成功',
                type:'success'
              })
            }
            this.form.url = res.msg
              this.dialogImageUrl = file.url;
              this.isShow = true

    },
    uploadPictureChange(file,fileList){
      console.log(file,fileList)
      let _this = this
      this.hideUpload = fileList.length >= this.limitCount;
      var audioElement = new Audio(file.url),duration;
      audioElement.addEventListener("loadedmetadata", function() {
        _this.form.time = audioElement.duration;
        console.log('时长：'+_this.form.time+'s')
      })
    },
   }
 }

css

<style lang="scss" scoped>
::v-deep .is-success{
  position: relative;
}

::v-deep .videoUpload{
  position: relative;
}
::v-deep .avatar{
  position: absolute;
  width: 148px;
  top: 35px;
  left: 0;
}
::v-deep .el-upload-list--picture-card{
  position: absolute;
  z-index: 999;
  
}
::v-deep .el-upload-list--picture-card .el-upload-list__item{
  background: transparent;
}
::v-deep .el-upload-list__item-thumbnail{
  display: none;
}
</style>

总结

提示：根据图片上传改的视频上传，简单粗暴记录一下。