苹果部分手机在小程序使用video组件播放视频时，播放画面会开始卡顿，声音播放流畅，目前在 iPhone7，iPhone12，iPhoneX 这三个苹果机型，微信版本号 8.0.38 有发现，安卓手机播放正常 出现问题微信手机日志已上传 微信号：WXNtracy 视频src:https://teach-1309941439.cos.ap-chengdu.myqcloud.com/a67dfc374b2841d980c17141581e0f01.mp4

小米手机企业微信中开发录像功能，CameraContext.startRecord报errMsg：“operateCamera:fail:startRecord fail” <view class="camera" :style="{top:top_height+45+'px'}"> <camera device-position="front" flash="off" @initdone="startRecord" style="width:45px;height:45px"></camera> </view> startRecord(e){ console.log(e); let that=this; uni.getSystemInfo({ success(res) { that.top_height = res.statusBarHeight;  } }); const ctx=uni.createCameraContext(); console.log(ctx); console.log('准备录制'); ctx.startRecord({ timeout:that.videoTime,     success: (res) => { console.log('开始录像') console.log(res); that.videoing=true;     },     timeoutCallback:function(res){//超出录制时长   console.log(res);   that.video=res;   that.videoing=false;     }, fail:(res)=>{ console.log('开始录像失败') console.log(res) } }); }, [图片]