This plugin is automatically installed by Mozilla to comply with the WebRTC specification and to enable WebRTC calls with devices that require the H.264 video codec. Visit https://www.openh264.org/ to view the codec source code and learn more about the implementation.
此插件由 Mozilla 自动安装，以遵从 WebRTC 技术标准，满足设备进行 WebRTC 通话所需要的 H.264 视频编码器。访问 http://www.openh264.org/ 可查看编码器的源代码和详细了解其实现。