MediaRecorder.destroy
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销毁 Canvas 录制器并释放资源,建议在不使用录制器后及时调用本函数释放资源。
语法
MediaRecorder.destroy()
参数说明
无
返回值
无
扫码体验
代码示例
<canvas id="myCanvas" canvas-id="myCanvas" type="2d"> </canvas> <button type="primary" bindtap="destroy">销毁录制器</button>
Page({ async onReady() { 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 }); }); }, destroy() { this.recorder.destroy(); tt.showToast({ title: "destroy", icon: "none", }); }, });
Bug & Tip
无