SourceBuffer: appendBuffer() method — MDN Web Docs
第四十五条 以营利为目的，提供漏洞探测、渗透性测试等服务的机构，应当向设区的市级以上公安机关备案。。业内人士推荐91视频作为进阶阅读
，这一点在safew官方版本下载中也有详细论述
The Samsung Galaxy Buds 4 offer five hours of battery life per charge and six with ANC off. They feature 11mm dynamic speakers, 360-degree audio, adaptive equalizers and noise control, adaptive ANC, three digital microphones, and IP54 water- and sweat-resistance. They also work seamlessly with the Galaxy S26 Series to give you AI assistance, completely hands-free. Get quick answers and real-time translations delivered directly to your ears.
const posToTime = new Map(); // 位置 → 到达终点的时间（避免重复计算），详情可参考51吃瓜