Transmitting method, receiving method, transmitting device, and receiving device

A receiving method for receiving a first stream related to content of an image or audio, the method comprising:

• receiving the first stream, the first stream including:
• timing update identification information indicating whether or not a correspondence relationship between a first reference clock and a second reference clock has been updated, the first reference clock being used to transmit and receive the first stream, and the second reference clock being used to transmit and receive a second stream related to another content to be reproduced in synchronization with the content related to the first stream;
• a first time according to the first reference clock;
• and
• a second time according to the second reference clock, the second time being associated with the first time based on the updated correspondence relationship,
• wherein the timing update identification information and the second time are stored in a TEMI (Timeline and External Media Information) access unit of the first stream,
• wherein the TEMI access unit includes a timeline descriptor and a location descriptor,
• wherein the timing update identification information and the second time are stored in the timeline descriptor,
• wherein location information is stored in the location descriptor, the location information indicating a location of the content related to the second stream, and
• wherein the receiving further comprises:
• receiving another location descriptor after the location descriptor is transmitted, the another location descriptor including splicing identification information and location information, the splicing identification information being used to stop reproduction of the content related to the second stream and start reproduction of content related to a third stream, and the location information indicating a location of the content related to the third stream;
• and
• re-receiving the location descriptor by a time when a reproduction period of the content related to the third stream ends.

A transmitting device that transmits a first stream related to content of an image or audio, the transmitting device comprising:

• a transmitter that transmits the first stream, the first stream including
• timing update identification information indicating whether or not a correspondence relationship between a first reference clock and a second reference clock has been updated, the first reference clock being used to transmit and receive the first stream, and the second reference clock being used to transmit and receive a second stream related to another content to be reproduced in synchronization with the content related to the first stream,
• a first time according to the first reference clock, and
• a second time according to the second reference clock, the second time being associated with the first time based on the updated correspondence relationship,
• wherein the timing update identification information and the second time are stored in a TEMI (Timeline and External Media Information) access unit of the first stream,
• wherein the TEMI access unit includes a timeline descriptor and a location descriptor,
• wherein the timing update identification information and the second time are stored in the timeline descriptor,
• wherein location information is stored in the location descriptor, the location information indicating a location of the content related to the second stream,
• wherein the transmitter transmits another location descriptor after the location descriptor is transmitted, the another location descriptor including splicing identification information and location information, the splicing identification information being used to stop reproduction of the content related to the second stream and start reproduction of content related to a third stream, and the location information indicating a location of the content related to the third stream, and
• wherein the transmitter retransmits the location descriptor by a time when a reproduction period of the content related to the third stream ends.

A receiving device that receives a first stream related to content of an image or audio, the receiving device comprising:

• a receiver that receives the first stream, the first stream including:
• timing update identification information indicating whether or not a correspondence relationship between a first reference clock and a second reference clock has been updated, the first reference clock being used to transmit and receive the first stream, and the second reference clock being used to transmit and receive a second stream related to another content to be reproduced in synchronization with the content related to the first stream;
• a first time according to the first reference clock;
• and
• a second time according to the second reference clock, the second time being associated with the first time based on the updated correspondence relationship,
• wherein the timing update identification information and the second time are stored in a TEMI (Timeline and External Media Information) access unit of the first stream,
• wherein the TEMI access unit includes a timeline descriptor and a location descriptor,
• wherein the timing update identification information and the second time are stored in the timeline descriptor,
• wherein location information is stored in the location descriptor, the location information indicating a location of the content related to the second stream,
• wherein the receiving receives another location descriptor after the location descriptor is transmitted, the another location descriptor including splicing identification information and location information, the splicing identification information being used to stop reproduction of the content related to the second stream and start reproduction of content related to a third stream, and the location information indicating a location of the content related to the third stream, and
• wherein the receiving re-receives the location descriptor by a time when a reproduction period of the content related to the third stream ends.