T-CSPIA 018-2026 安防视音频智能编解码技术要求

ICS 13.310 CCS A 91 2026 - 03 - 25发布 2026 - 04 - 25实施中国安全防范产品行业协会中关村视听产业技术创新联盟发布 T/CSPIA 018—2026 T/AI 109.8—2025 安防视音频智能编解码技术要求 Technical specification for security video and audio intelligent coding 团体标准 CSPIA 全国团体标准信息平台全国团体标准信息平台 T/CSPIA 018—2026 T/AI 109.8 —2025 I 目次前言 ................................ ................................ ................ IV 引言 ................................ ................................ ................. V 1 范围 ................................ ................................ ............... 1 2 规范性引用文件 ................................ ................................ ..... 1 3 术语、定义和缩略语 ................................ ................................ . 1 3.1 术语和定义 ................................ ................................ ..... 1 3.2 缩略语 ................................ ................................ ........ 18 4 约定 ................................ ................................ .............. 20 4.1 概述 ................................ ................................ .......... 20 4.2 算术运算符 ................................ ................................ .... 20 4.3 逻辑运算符 ................................ ................................ .... 21 4.4 关系运算符 ................................ ................................ .... 21 4.5 位运算符 ................................ ................................ ...... 21 4.6 赋值运算符 ................................ ................................ .... 22 4.7 数学函数 ................................ ................................ ...... 22 4.8 结构关系符 ................................ ................................ .... 24 4.9 位流语法、解析过程和解码过程的描述方法 ................................ ........ 24 5 视频编码位流的结构 ................................ ................................ 28 5.1 位流格式 ................................ ................................ ...... 28 5.2 编码视频序列 ................................ ................................ .. 28 5.3 图像 ................................ ................................ .......... 29 5.4 片 ................................ ................................ ............ 34 5.5 最大编码单元、编码树和编码单元 ................................ ................ 34 6 视频编码位流的语法和语义 ................................ .......................... 34 6.1 语法描述 ................................ ................................ ...... 34 6.2 语义描述 ................................ ................................ ..... 104 7 视频解析过程 ................................ ................................ ..... 170 7.1 k阶指数哥伦布码 ................................ .............................. 170 7.2 ue(v)和se(v)的解析过程 ................................ ....................... 171 7.3 ae(v)的解析过程 ................................ .............................. 172 8 视频解码过程 ................................ ................................ ..... 211 8.1 NAL位流解码 ................................ ................................ .. 211 全国团体标准信息平台 T/AI 109.8 —2025 T/CSPIA 018—2026 II 8.2 序列解码 ................................ ................................ ...... 212 8.3 图像解码 ................................ ................................ ...... 213 8.4 片解码 ................................ ................................ ........ 219 8.5 最大编码单元解码 ................................ .............................. 220 8.6 编码单元解码 ................................ ................................ .. 220 8.7 变换块解码 ................................ ................................ .... 295 8.8 帧内预测 ................................ ................................ ...... 303 8.9 帧间预测 ................................ ................................ ...... 344 8.10 预测补偿 ................................ ................................ ..... 393 8.11 去块效应滤波 ................................ .............................