message/pages/person/video/send/send.wxml

<view class="page">
<view class="content">
    <view class="upload_video" >
    <view style="display:inline-block;width:100%;height:100%;">
    <view style="width:100%;height:{{height}}px;background-color:#000;padding-top:50%;box-sizing:border-box;" hidden="{{!video_hidden}}">
      <view style="width:100%;display:inline-block;text-align:center;margin-top:1em;">
          <image bindtap="videoPlay" src="/pages/images/main_play@2x.png" mode="widthFix" style="width:30%"></image>
    </view>
    <view style="width:100%;display:inline-block;text-align:center;color:#978b7d;margin-top:1em;">点击播放</view>
    </view>
    <video id="myVideo" src="{{videoSrc}}" controls="{{true}}"  style="width:100%;height:100%;" bindtimeupdate="timeUpdate" bindplay="play" bindended="ended" hidden="{{video_hidden}}"></video>
    </view>
    </view>
</view>
</view>