ICS 35.040.40 CCS L71 中华人民共和国通信行业标准 YD/T XXXX —XXXX YD IPTV虚拟现实 （VR）全景多媒体业务服务 技术要求 Technical requirements for multimedia service of IPTV panoramic virtual reality (VR) <报批稿 > 中华人民共和国工业和信息化部 发布 ××××-××-××发布 ××××-××-××实施II目　　次 前　　言 ................................................................................................................................................. IV 1 范围 .................................................................................................................................................... 1 2 规范性引用文件 ................................................................................................................................ 1 3 术语和定义 ........................................................................................................................................ 1 4 缩略语 ................................................................................................................................................ 2 5 概述 .................................................................................................................................................... 2 6 业务定义 ............................................................................................................................................ 3 7 业务场景 ............................................................................................................................................ 3 8 系统架构 ............................................................................................................................................ 3 8.1 总体架构 .................................................................................................................................... 3 8.2 功能要求 .................................................................................................................................... 4 9 终端架构 ............................................................................................................................................ 5 9.1 硬件层 ........................................................................................................................................ 6 9.2 操作系统层 ................................................................................................................................ 6 9.3 图片解码 .................................................................................................................................... 6 9.3.1 视频解码 ................................................................................................................................. 6 9.3.2 显示管理 ................................................................................................................................. 6 9.4 应用层 ........................................................................................................................................ 6 9.5 全景播放应用架构 .................................................................................................................... 6 9.5.1 浏览器 ..................................................................................................................................... 7 9.5.2 3D建模要求 ............................................................................................................................ 7 9.5.3 3D模型解析模块 .................................................................................................................... 7 9.5.4 视频解码模块 ......................................................................................................................... 8 9.5.5 图片解码模块 ......................................................................................................................... 8 9.5.6 纹理贴图模块 ......................................................................................................................... 8 9.5.7 按键处理模块 ..................................