Over deze norm
|Commissie||Coding of audio, picture, multimedia and hypermedia information|
This part of the MPEG-A standards specifies four formats that are used by parties communicating using the the Publish/Subscribe (PubSub) communication model for their multimedia communication purposes. The PubSub parties are: Publisher, Subscriber, Match Service Provider (MSP) and Consumer and the formats employed are Resource Information (RI), Publication Information (PI), Subscription Information (SI) and Notification (NI). The PSAF standard specifies RI, PI, SI and NI in such a way that typical multimedia communication requirements can be supported. A non-exhaustive list of such requirements is • Publisher can o Describe the Resource for cinsumption purposes o Define the contract that will bind the Publisher and a Consumer o Request a device to report use of the Resource o Describe the Resource for distribution purposes o Define the contract that will bind the Publisher and a Match Service Provider (MSP) of a match involving the Publication o Request the MSP to notify/not to notify a list of users • Subscriber can o Query the Resource o Define the contract that will bind the Subscriber and a Match Service Provider (MSP) o Request the MSP to notify/not to notify a list of users of a match involving the Subscription The PSAF standard does not specify the protocols used to carry these payloads. The structure of the document is a follows Clause 2 lists normative references. Clause 3 and 4 define the abbreviations and the terms used in this document. Clause 5 specifies the PSAF reference model. Clause 6 specifies the DIDL profile schema specific for PSAF and Clause 7 specifies the PSAF Metadata Schema.
|Nederlandse titel||Information technology - Multimedia application format (MPEG-A) - Part 16: Publish/Subscribe Application Format|
|Engelse titel||Information technology - Multimedia application format (MPEG-A) - Part 16: Publish/Subscribe Application Format|