How to implement video recording and editing functions in uniapp

Uniapp (Universal App) is a development framework based on Vue.js, which can use Vue syntax and cross-platform development capabilities at the same time. The framework can compile code into different pages on multiple platforms. This article will introduce how to implement video recording and editing functions in Uniapp and provide specific code examples.

1. Implementation of video recording function

To realize the video recording function, we must first introduce the uni-mp-video plug-in. This plug-in is a video playback and recording component on the Uniapp development platform, providing rich functions.

1. Find the package.json file in the root directory of the project and add the following code in the dependencies section:

"dependencies": {

...
"uni-mp-video": "^1.0.0"

}

2. Run the npm install command to install the plugin.
3. Use this plug-in in the vue file of the page that needs to use the video recording function:

<mp-video :src="videoSrc" :autoplay="true" controls></mp-video>
<button @tap="startRecord">开始录制</button>
<button @tap="endRecord">结束录制</button>

< ;/view>

<script><br> import mpVideo from 'uni-mp-video'<br> export default {</script>

data() {
  return {
    videoSrc: ''
  }
},
components: {
  mpVideo
},
methods: {
  async startRecord() {
    try {
      const { tempVideoPath } = await uni.getRecorderManager().start({
        duration: 60, // 录制时长，单位为秒
        format: 'mp4' // 录制格式
      })
      this.videoSrc = tempVideoPath
    } catch (err) {
      console.log(err)
    }
  },
  endRecord() {
    uni.getRecorderManager().stop()
  }
}

}

In the above code snippet, we introduced the plug-in and referenced the component on the page. In methods, we define the startRecord() method to start the recording function, and obtain the recorded video path after the recording is completed, and bind it to the videoSrc attribute so that it can be displayed on the page. The endRecord() method is used to end the recording function.

2. Implementation of video editing function

To realize the video editing function, you can use the uni-image-editor plug-in. This plug-in provides a rich set of image and video editing functions based on uniapp, including cropping, zooming, rotating, filters and other functions.

1. Find the package.json file in the root directory of the project and add the following code in the dependencies section:

"dependencies": {

...
"uni-image-editor": "^1.0.0"

}

2. Run the npm install command to install the plugin.
3. Use this plug-in in the vue file of the page that needs to use the video editing function:

<mp-video :src="videoSrc" :autoplay="true" controls></mp-video>
<button @tap="editVideo">剪辑视频</button>

< ;/view>

<script><br> import mpVideo from 'uni-mp-video'<br> export default {</script>

data() {
  return {
    videoSrc: ''
  }
},
components: {
  mpVideo
},
methods: {
  editVideo() {
    uni.chooseVideo({
      success: async (res) => {
        const { tempFilePath } = res
        try {
          const { tempFilePath } = await uni.createSelectorQuery().select('#mp-video').node().context.getImageData()
          uni.navigateTo({
            url: `/pages/videoEdit/videoEdit?videoSrc=${tempFilePath}`
          })
        } catch (err) {
          console.log(err)
        }
      }
    })
  }
}

}

In the above code snippet, we referenced the mp-video component on the page and defined an editVideo() method. This method uses the uni.chooseVideo() api to select the video file and passes the temporary path of the video to the videoEdit page for editing operations.

In the videoEdit page, you can use the editing function in the uni-image-editor plug-in to crop, rotate, and other operations on the video. For specific usage, please refer to the relevant documentation of the uni-image-editor plug-in.

The above are specific code examples for implementing video recording and editing functions in Uniapp. By introducing relevant plug-ins and using the corresponding API, we can easily implement video recording and editing functions in Uniapp. Hope this article is helpful to you.

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