v3.15.1

• 新增 --pid-file 配置项，支持写入 PID 到指定文件
• 网页播放器：
  • 新增“画中画模式”选项，可以切换 Document PiP（完整） 和 Video PiP（简洁）两种模式（仅限 HTTPS）
  • 新增“界面风格”选项，可以切换 Fancy 和 Simple 两种风格
    • Simple 风格简化了模糊、光影、动效、透明等效果，可以显著提升在低性能设备上的 UI 响应性
  • 修正 MPEG-TS 直播和回看播放的码率统计，使结果不再受网络传输速度影响，反映真实媒体码率
  • 优化在 LG 电视 webOS 浏览器上的性能：使用原生解码链路，不再经过 MSE
  • 改进网络错误和解码错误提示，对于不支持的音频编码，明确说明是浏览器限制
  • 若干性能优化，提升操作响应性

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• Added the --pid-file option to write the PID to a specified file
• Web player:
  • Added a “Picture-in-Picture Mode” option for switching between Document PiP (Full) and Video PiP (Compact) modes (HTTPS only)
  • Added an “Interface Style” option for switching between Fancy and Simple styles
    • Simple style reduces blur, lighting, animation, transparency, and other effects to significantly improve UI responsiveness on low-performance devices
  • Fixed bitrate reporting for MPEG-TS live and catch-up playback so it reflects the actual media bitrate rather than network delivery speed
  • Improved performance in LG TV webOS browsers by using the native decoding path instead of MSE
  • Improved network and decoding error messages, including clearer explanations when an audio codec is unsupported due to browser limitations
  • Various performance optimizations for more responsive interactions