Amendment 3 - Information technology -- Coding of audio-visual objects -- Part 20: Lightweight Application Scene Representation (LASeR) and Simple Aggregation Format (SAF) - Presentation and Modification of Structured Information (PMSI)
修改件3-信息技术视听对象编码第20部分:轻量级应用场景表示(LASeR)和简单聚合格式(SAF)结构化信息的表示和修改