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    • 1. 发明申请
    • SCALABLE DATA STREAM AND NETWORK ENTITY
    • 可扩展数据流和网络实体
    • WO2013153227A2
    • 2013-10-17
    • PCT/EP2013/057803
    • 2013-04-15
    • FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    • SCHIERL, ThomasGEORGE, ValeriHENKEL, AnastasiaMARPE, DetlevGRÜNEBERG, KarstenSKUPIN, Robert
    • H04N7/26
    • H04N19/00884H04N19/13H04N19/174H04N19/188H04N19/436H04N19/46H04N19/463H04N19/593H04N19/70H04N19/91
    • The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. By this measure, it is sufficient if the data carrying packets comprise an operation point identifier identifying an operation point associated with a respective packet within the scalability space spanned by the scalability axis. By this measure, the packet operation point identifiers provide enough information to a network entity so as to associate these packets with their operation point in the scalability space provided the network entity has access to this scalability axes descriptor provided by the packet of the predetermined packet type. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.
    • 通过网络实体对可伸缩数据流的处理在数据流中由于具有定义可伸缩性轴的数量的可伸缩性轴描述符的实际携带数据的不同分组类型的数据包以及其语义意义而使数据流变得不复杂 。 通过这种措施,如果携带数据的数据包包括识别与可扩展性轴跨越的可扩展性空间内的相应分组相关联的操作点的操作点标识符就足够了。 通过这种措施,分组操作点标识符向网络实体提供足够的信息,以便在可扩展性空间中将这些分组与其操作点相关联,只要网络实体可以访问由预定分组类型的分组提供的该可伸缩性轴描述符 。 在另一方面,通过使用不同于携带分组的数据的分组传送级别和/或简档描述符,通过网络实体来处理可伸缩数据流变得更有效率,其中简档和/或级别描述符被划分成第一组显式信令 可用编码选项集的定义和/或相应操作点的可用语法元素值范围,以及第二组简档和/或级别描述符,其指示可用编码选项集的定义和/或可用语法元素值 通过参考另一个配置文件和/或电平描述符为其各自的操作点的范围。
    • 5. 发明申请
    • SCALABLE DATA STREAM AND NETWORK ENTITY
    • 可扩展数据流和网络实体
    • WO2013153227A3
    • 2013-12-19
    • PCT/EP2013057803
    • 2013-04-15
    • FRAUNHOFER GES FORSCHUNG
    • SCHIERL THOMASGEORGE VALERIHENKEL ANASTASIAMARPE DETLEVGRUENEBERG KARSTENSKUPIN ROBERT
    • H04N7/26
    • H04N19/00884H04N19/13H04N19/174H04N19/188H04N19/436H04N19/46H04N19/463H04N19/593H04N19/70H04N19/91
    • The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. By this measure, it is sufficient if the data carrying packets comprise an operation point identifier identifying an operation point associated with a respective packet within the scalability space spanned by the scalability axis. By this measure, the packet operation point identifiers provide enough information to a network entity so as to associate these packets with their operation point in the scalability space provided the network entity has access to this scalability axes descriptor provided by the packet of the predetermined packet type. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.
    • 在数据流中,通过网络实体对可伸缩数据流的处理变得不那么复杂,其伴随分组实际上通过具有可伸缩轴描述符的不同分组类型的分组来传送数据,所述可伸缩轴描述符定义了可伸缩轴的数量及其语义含义 。 通过这种措施,携带数据包的数据包括操作点标识符就足够了,该操作点标识符标识与可伸缩性轴所跨越的可伸缩性空间内的相应数据包相关联的操作点。 通过这种措施,分组操作点标识符向网络实体提供足够的信息,以便在可扩展性空间中将这些分组与它们的操作点相关联,只要网络实体能够访问由预定分组类型的分组提供的该可伸缩轴描述符 。 在另一方面中,通过使用除了承载数据包的数据之外的分组来传送级别和/或简档描述符,由网络实体对可伸缩数据流的处理变得更加有效,其中简档和/或级别描述符被划分为第一组显式信令 用于相应操作点的可用编码选项集合和/或可用语法元素值范围的定义以及用信号通知可用编码选项集合的定义和/或可用语法元素值的第二组简档和/或等级描述符 通过参考另一个简档和/或等级描述符来确定它们各自的操作点的范围。