Reception apparatus, transmission apparatus, and data processing method
View Patent ↗A configuration by which application control in which an application control message is applied can be executed with certainty is implemented. A transmission apparatus transmits event notification data in which an application control message (ACM) is stored as event data to a reception apparatus. An application controlling unit of the reception apparatus executes application control based on the ACM stored as event data in the event notification message. The event notification data is stored in an MPD that is signaling data or in a segment that is data for transmission of an AV content, and the reception apparatus can acquire the ACM from the MPD or the segment and perform rapid application control.
1. A reception apparatus, comprising:
communication circuitry configured to receive, in a broadcast, event notification data in which an application control message is stored as event data; and
processing circuitry configured to:
extract the application control message from the event notification data received by the communication circuitry, and
execute application control based on the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.
2. The reception apparatus according to claim 1 , wherein the event notification data is event notification data having a data format that complies with an MPD (Media Presentation Description) application event notification method (MPD Event) that is an event notification method utilizing an MPD that is signaling data transmitted as notification data of control information.
3. The reception apparatus according to claim 1 , wherein the event notification data is event notification data having a data format that complies with a segment application event notification method (=In-band Event Signaling) that is an event notification method utilizing a segment that is data for transmission of an audio-visual content.
4. The reception apparatus according to claim 1 , wherein the event notification data is data in which control time information for executing a process in accordance with the application control message stored as event data is recorded.
5. The reception apparatus according to claim 1 , wherein the application control message is data in which an application main body that becomes a control target or an application identifier is recorded.
6. The reception apparatus according to claim 1 , wherein the application control message is data in which metadata relating to an application that becomes a control target is recorded.
7. The reception apparatus according to claim 6 , wherein the metadata includes information of at least one of the following (a) to (c):
(a) a version of the application that becomes the control target;
(b) resource information that is necessitated for execution of the application that becomes the control target; and
(c) rating information of the application that becomes the control target.
8. The reception apparatus according to claim 1 , wherein the application control message is data in which a command to an application that becomes a control target is recorded.
9. A reception apparatus, comprising:
communication circuitry configured to receive, in a broadcast, an application control message;
middleware configured to produce event notification data in which the application control message is stored as event data; and
processing circuitry configured to:
extract the application control message from the event notification data, and
execute application control based on the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.
10. The reception apparatus according to claim 9 , wherein the middleware produces event notification data having a data format that complies with an MPD (Media Presentation Description) application event notification method (MPD Event) that is an event notification method utilizing an MPD that is signaling data transmitted as notification data of control information.
11. The reception apparatus according to claim 9 , wherein the middleware produces event notification data having a data format that complies with a segment application event notification method (=In-band Event Signaling) that is an event notification method utilizing a segment that is data for transmission of an audio-visual content.
12. A transmission apparatus, comprising:
processing circuitry configured to store an application control message in event notification data as event data;
communication circuitry configured to transmit, in a broadcast to a reception apparatus, the event notification data that includes the application control message as event data,
wherein the reception apparatus includes processing circuitry that extracts the application control message from the event notification data and executes application control based on the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.
13. The transmission apparatus according to claim 12 , wherein the event notification data is event notification data having a data format that complies with an MPD (Media Presentation Description) application event notification method (MPD Event) that is an event notification method utilizing an MPD that is signaling data transmitted as notification data of control information.
14. The transmission apparatus according to claim 12 , wherein the event notification data is event notification data having a data format that complies with a segment application event notification method (=In-band Event Signaling) that is an event notification method utilizing a segment that is data for transmission of an audio-visual content.
15. A data processing method executed by a reception apparatus, comprising:
receiving, by communication circuitry, event notification data in a broadcast in which an application control message is stored as event data;
extracting, by processing circuitry, the application control message from the event notification data received by the communication circuitry; and
executing, by the processing circuitry, application control based on the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.
16. A data processing method executed by a reception apparatus, comprising:
receiving, by communication circuitry, an application control message in a broadcast;
producing, by middleware, event notification data in which the application control message is stored as event data;
extracting, by processing circuitry, the application control message from the event notification data; and
executing, by the processing circuitry, application control based on the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.
17. A data processing method executed by a transmission apparatus, comprising:
storing, by processing circuitry of the transmission apparatus, an application control message in event notification data as event data;
transmitting, by communication circuitry, in a broadcast to a reception apparatus, the event notification data that includes the application control message,
wherein the reception apparatus includes processing circuitry that extracts the application control message from the event notification data and executes application control in accordance with the extracted application control message,
wherein the event notification data is data in which an event identifier indicating that the event data is an application control message is recorded.