Reception apparatus, transmission apparatus, and data processing method
The present technology relates to a reception apparatus, a transmission apparatus, and a data processing method that permit sharing of a resource that is reused among a plurality of services. The reception apparatus receives content and controls, on the basis of control information that is transported together with the content and that includes resource sharing information indicating whether a resource of the content is shared among a plurality of services, storage of the resource in a storage apparatus such that the resource is shared among the plurality of services. The present technology is applicable, for example, to a television receiver that supports ATSC 3.0.
1. A reception apparatus comprising:
reception circuitry configured to receive control information and content; and
processing circuitry configured to control, based on the control information that includes resource sharing information indicating whether a resource of the content is shared among a plurality of services, storage of the resource such that the resource is shared among the plurality of services, wherein
the resource is stored in association with a shared identifier indicated by the resource sharing information,
the shared identifier is associated with the plurality of services among which the resource is shared, and
at least one of the content includes advertisement content or the resource of the content includes at least one file of a broadcaster application, the resource sharing information being identification information for identifying a group to which the plurality of services sharing the resource of the advertisement content belongs in a case that the content includes the advertisement content.
2. The reception apparatus of claim 1 , wherein
in a case where the resource sharing information included in the control information indicates that the resource is shared among the plurality of services, the processing circuitry stores the resource in association with a domain identifier indicated by the resource sharing information.
3. The reception apparatus of claim 2 , wherein
the content and the control information is included in a broadcast signal,
the services are digital broadcasting services, and
the control information is signaling for providing the services.
4. The reception apparatus of claim 3 , wherein
the signaling is first signaling that permits specification of an attribute for the plurality of services, and
the first signaling includes the resource sharing information specified on a service-by-service basis.
5. The reception apparatus of claim 3 , wherein
the signaling is second signaling that permits specification of an attribute for each service, and
the second signaling includes the resource sharing information specified in given units within a target service.
6. The reception apparatus of claim 5 , wherein
the resource sharing information is specified on a service-by-service, on a session-by-session, or on an application-by-application basis.
7. The reception apparatus of claim 3 , wherein
the content resource is a shared resource file in a given format, and
the processing circuitry stores the shared resource file in a second storage area different from a first storage area where other resource files are stored in response to operation of an application transported together with the content.
8. The reception apparatus of claim 7 , wherein
the processing circuitry deletes the shared resource file, stored in the second storage area, in response to operation of the application.
9. The reception apparatus of claim 3 , wherein
the broadcast signal is compliant with an IP (Internet Protocol) transport scheme, and
data of a file of the content resource is placed into an IP packet that includes a UDP (User Datagram Protocol) packet and transported.
10. The reception apparatus of claim 1 , wherein
the content includes the advertisement content, and
the resource sharing information is the identification information for identifying the group to which the plurality of services sharing the resource of the advertisement content belongs.
11. A data processing method of a reception apparatus, the data processing method comprising:
receiving control information and content; and
controlling, by processing circuitry and based on the control information that includes resource sharing information indicating whether a resource of the content is shared among a plurality of services, storage of the resource such that the resource is shared among the plurality of services, wherein
the resource is stored in association with a shared identifier indicated by the resource sharing information,
the shared identifier is associated with the plurality of services among which the resource is shared, and
the content includes advertisement content or the resource of the content includes at least one file of a broadcaster application, the resource sharing information being identification information for identifying a group to which the plurality of services sharing the resource of the advertisement content belongs in a case that the content includes the advertisement content.
12. A transmission apparatus comprising:
processing circuitry configured to generate control information that includes resource sharing information indicating whether a resource of content is shared among a plurality of services, the control information indicating a shared identifier that is associated with the shared resource when stored at a reception apparatus; and
transmission circuitry configured to send the control information and the content,
wherein the shared identifier is associated with the plurality of services among which a is shared, and
at least one of the content includes advertisement content or the resource of the content includes at least one file of a broadcaster application, the resource sharing information being identification information for identifying a group to which the plurality of services sharing the resource of the advertisement content belongs in a case that the content includes the advertisement content.
13. The transmission apparatus of claim 12 , wherein
the content and the control information are transported by a broadcast signal,
the services are digital broadcasting services, and
the control information is signaling for providing the services.
14. The transmission apparatus of claim 13 , wherein
the signaling is first signaling that permits specification of an attribute for the plurality of services, and
the first signaling includes the resource sharing information specified on a service-by-service basis.
15. The transmission apparatus of claim 13 , wherein
the signaling is second signaling that permits specification of an attribute for each service, and
the second signaling includes the resource sharing information specified in given units within a target service.
16. The transmission apparatus of claim 15 , wherein
the resource sharing information is specified on a service-by-service, on a session-by-session, or on an application-by-application basis.
17. The transmission apparatus of claim 12 , wherein
the content resource is a file in a given format.
18. The transmission apparatus of claim 17 , wherein
the broadcast signal is compliant with an IP (Internet Protocol) transport scheme, and
data of the content resource file is placed into an IP packet that includes a UDP (User Datagram Protocol) packet and transported.
19. The transmission apparatus of claim 12 , wherein
the content includes the advertisement content, and
the resource sharing information is the identification information for identifying the group to which the plurality of services sharing the resource of the advertisement content belongs.
20. A data processing method of a transmission apparatus, the data processing method comprising:
generating, by processing circuitry, control information that includes resource sharing information indicating whether a resource of content is shared among a plurality of services, the control information indicating a shared identifier that is associated with the resource when the shared resource is stored at a reception apparatus; and
sending the control information and the content, wherein
the shared identifier is associated with the plurality of services among which the resource is shared, and
at least one of the content includes advertisement content or the resource of the content includes at least one file of a broadcaster application, the resource sharing information being identification information for identifying a group to which the plurality of services sharing the resource of the advertisement content belongs in a case that the content includes the advertisement content.