MediaRecorder.start
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基础库 2.52.0 开始支持本方法,低版本需做兼容处理,这是一个同步方法。​
开始录制。录制器启动成功后会调用开发者通过MediaRecorder.onStart()设置的回调。​

语法​

Plain Text
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MediaRecorder.start()

参数说明​

无​

返回值​

无​

扫码体验​

代码示例​

html
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<canvas id="myCanvas" canvas-id="myCanvas" type="2d"> </canvas>
<button type="primary" bindtap="start">开始录制</button>
js
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Page({
async onReady() {
this.videoContext = tt.createVideoContext("myVideo");
tt.createSelectorQuery()
.select("#myCanvas")
.node()
.exec((res) => {
// 获取 canvas 实例
const canvas = res[0].node;
const canvasCtx = canvas.getContext("2d");
this.recorder = tt.createMediaRecorder(canvas, {
width: canvas.width, // video width
height: canvas.height, // video height
videoBitsPerSecond: 1000, // bit rate in kbps
gop: 12, // key frame interval
fps: 60, // frames per second
});
});
},
start() {
this.recorder.start();
tt.showToast({
title: "start",
icon: "none",
});
},
});

Bug & Tip​

无​