信息技术.多媒体应用格式(MPEG-A).第4部分:音乐幻灯片应用格式

[中文适用范围]： 本部分规定了用于具有 MP3 音频播放和图像幻灯片演示的多媒体应用程序的文件格式。它还定义了其他技术特征，如定时文本（例如歌曲歌词）和动画（图像过渡效果）。 [外文原描述]： ISO/IEC 23000-4:2009 specifies signaling of content governance and protection of musical slide show application format based on MPEG-21 Part 4: Intellectual Property Management and Protection (IPMP) Components Base Profile and MPEG-21 Part 5: Rights Expression Language (REL) Mobile And optical Media (MAM) Profile. It may be used to protect any content of musical slide show application format: MPEG-1 Audio Layer 3 (ISO/IEC 11172-3), JPEG images (ISO/IEC 10918-1), MPEG-4 LASeR (ISO/IEC 14496-20) animation script and 3GPP timed text (3GPP TS 26.245) in any combinations of content protection. ISO/IEC 23000-4:2009 specifies the file structure, metadata, and synchronization of contents as in ISO/IEC 23000-4, the use of file format (ISO/IEC 14496-14) in using content governance and protection, the metadata for governance and protection using MPEG-21 Part 4: IPMP Components Base Profile and MPEG-21 Part 5: REL MAM Profile, encapsulated in MPEG-21 Part 2: Digital Item Declaration (DID) . It does not specify certain protection tools to be used in content protection, therefore it ensures a simple and flexible protection scheme.