media-container.wxml

<import src="/common/head.wxml" />
<import src="/common/foot.wxml" />

<view class="container page" data-weui-theme="{{theme}}">
  <template is="head" data="{{title: '音视频合成'}}"/>

  <view class="page-body">
    <view class="page-section">
      <view class="page-section-title">
       源视频
      </view>
    </view>
    <view class="page-section">
     <button type="primary" bindtap="handleChooseVideo" data-video="one">选择源视频1</button>
     <video wx:if="{{one}}" src="{{one}}"></video>
    </view>
    <view class="page-section">
      <button type="primary" bindtap="handleChooseVideo" data-video="two">选择源视频2</button>
      <video wx:if="{{two}}" src="{{two}}"></video>
    </view>
    <view class="btn-area">
      <button disabled="{{!canIUse}}" type="primary" bind:tap="handleExport">合成</button>
    </view> 
    <block wx:if="{{targetSrc}}">
      <view class="page-section">
        <view class="page-section-title">
           <text>合成视频</text>
        </view>
        <view class="page-section-title">
           <text>合成视频轨道为：源视频1视频轨道 + 源视频2音频轨道</text>
        </view>
      </view>
      <view class="page-section">
        <video src="{{targetSrc}}">
        </video>
      </view>
    </block>
  </view>
  <template is="foot" />
</view>