vue实现视频录制

Vue 实现视频录制的方法

使用浏览器 MediaDevices API

通过 navigator.mediaDevices.getUserMedia 获取摄像头和麦克风权限，结合 MediaRecorder API 实现录制：

// 在Vue组件中
data() {
  return {
    mediaStream: null,
    mediaRecorder: null,
    recordedChunks: [],
    videoUrl: ''
  }
},
methods: {
  async startRecording() {
    try {
      this.mediaStream = await navigator.mediaDevices.getUserMedia({
        video: true,
        audio: true
      });

      this.mediaRecorder = new MediaRecorder(this.mediaStream);
      this.mediaRecorder.ondataavailable = (e) => {
        if (e.data.size > 0) {
          this.recordedChunks.push(e.data);
        }
      };

      this.mediaRecorder.start();
    } catch (error) {
      console.error('Error accessing media devices:', error);
    }
  },

  stopRecording() {
    this.mediaRecorder.stop();
    this.mediaStream.getTracks().forEach(track => track.stop());

    const blob = new Blob(this.recordedChunks, { type: 'video/webm' });
    this.videoUrl = URL.createObjectURL(blob);
    this.recordedChunks = [];
  }
}

使用第三方库 vue-video-recorder

安装依赖：

npm install vue-video-recorder

组件使用示例：

import VueVideoRecorder from 'vue-video-recorder'

export default {
  components: {
    VueVideoRecorder
  },
  methods: {
    handleRecordingComplete(videoBlob) {
      const videoUrl = URL.createObjectURL(videoBlob);
      // 处理录制完成的视频
    }
  }
}

实现屏幕录制

使用 getDisplayMedia 代替 getUserMedia 实现屏幕录制：

async startScreenRecording() {
  try {
    this.mediaStream = await navigator.mediaDevices.getDisplayMedia({
      video: true,
      audio: true
    });
    // 其余逻辑与摄像头录制相同
  } catch (error) {
    console.error('Screen sharing error:', error);
  }
}

注意事项

• 需要HTTPS环境或localhost才能使用媒体设备API
• 不同浏览器对视频格式支持可能不同
• 移动端可能需要额外权限处理
• 录制时长受浏览器内存限制

完整组件示例

<template>
  <div>
    <video ref="preview" autoplay muted></video>
    <button @click="startRecording">开始录制</button>
    <button @click="stopRecording">停止录制</button>
    <video v-if="videoUrl" :src="videoUrl" controls></video>
  </div>
</template>

<script>
export default {
  data() {
    return {
      mediaStream: null,
      mediaRecorder: null,
      recordedChunks: [],
      videoUrl: ''
    }
  },
  methods: {
    async startRecording() {
      try {
        this.mediaStream = await navigator.mediaDevices.getUserMedia({
          video: true,
          audio: true
        });
        this.$refs.preview.srcObject = this.mediaStream;

        this.mediaRecorder = new MediaRecorder(this.mediaStream);
        this.mediaRecorder.ondataavailable = (e) => {
          if (e.data.size > 0) {
            this.recordedChunks.push(e.data);
          }
        };
        this.mediaRecorder.start(1000); // 每1秒收集一次数据
      } catch (error) {
        console.error('Error:', error);
      }
    },

    stopRecording() {
      this.mediaRecorder.stop();
      this.mediaStream.getTracks().forEach(track => track.stop());

      const blob = new Blob(this.recordedChunks, { type: 'video/webm' });
      this.videoUrl = URL.createObjectURL(blob);
      this.recordedChunks = [];
    }
  }
}
</script>