ISO/IEC 23000-4:2009
Information technology -- Multimedia application format (MPEG-A) -- Part 4: Musical slide show application format
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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.