如何在react native中将视频(从移动存储)转换为base64？

npm install react-native-video react-native-fs --save

import React from 'react';
import { View, Button } from 'react-native';
import Video from 'react-native-video';
import RNFS from 'react-native-fs';

class VideoConverter extends React.Component {
  state = {
    videoPath: null,
    base64Data: null,
  };

  selectVideo = async () => {
    const response = await RNFS.pickDocument();
    this.setState({ videoPath: response.path });
  };

  convertToBase64 = async () => {
    const { videoPath } = this.state;
    const videoData = await RNFS.readFile(videoPath, 'base64');
    this.setState({ base64Data: videoData });
  };

  render() {
    const { videoPath, base64Data } = this.state;

    return (
      <View>
        <Button title="Select Video" onPress={this.selectVideo} />
        {videoPath && (
          <Video source={{ uri: videoPath }} style={{ width: 300, height: 300 }} />
        )}
        {videoPath && (
          <Button title="Convert to Base64" onPress={this.convertToBase64} />
        )}
        {base64Data && <Text>{base64Data}</Text>}
      </View>
    );
  }
}

import React from 'react';
import { View } from 'react-native';
import VideoConverter from './VideoConverter';

export default function App() {
  return (
    <View>
      <VideoConverter />
    </View>
  );
}