| 主权项 |
1. A method of a reception apparatus for determining a hidden replaceable period of a MP (Media Presentation), comprising:
receiving, by circuitry of the reception apparatus, a first MPD (Media Presentation Description), the first MPD identifying a predetermined period and at least one media segment of the MP to be presented during the predetermined period; determining whether the first MPD includes additional data to be resolved by an application; providing, by the circuitry, the additional data to the application when the first MPD is determined to include the additional data; receiving additional period information from the application, the additional period information being determined by the application based on the additional data included in the first MPD and identifying a replaceable sub-period within the predetermined period identified by the first MPD;
generating, by the circuitry, a second MPD based on the additional period information received from the application; and outputting, by the circuitry, the MP for display to a user based on the second MPD, each of a subset of the at least one media segment for the replaceable sub-period of the MP being replaceable with an alternate media segment, wherein the second MPD identifies at least one media segment that is not included in the first MPD. |
