Multiplexing apparatus, receiving apparatus, multiplexing method, and delay adjustment method
AssigneeKabushiki Kaisha Toshiba
InventorsTatsuya Tanaka, Tomoo Yamakage
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Abstract
A multiplexing apparatus includes processing circuitry. The processing circuitry multiplexes a plurality of MMT packets including at least one MMT packet to which first output time information representing a first output time and presentation time information representing a presentation time are added. The processing circuitry rewrites the first output time information to second output time information representing a second output time. The processing circuitry adds a time necessary to multiplex the plurality of MMT packets to the presentation time represented by the presentation time information as a delay time.
Claims6
A receiving apparatus comprising:
- processing circuitry configured to
- receive an MMT (MPEG Multimedia Transport) stream including an MMT packet to which output time information representing a time of output from a multiplexing apparatus provided in transmission equipment and presentation time information obtained by adding a delay time by the multiplexing apparatus to a presentation time at which an accessible data unit formed from a payload is displayed are added;
- calculate a transmission delay time from a reception time of the MMT packet and the time represented by the output time information;
- acquire a delay amount from the calculated transmission delay time and the delay time represented by the presentation time information;
- and
- display the MMT stream at a time obtained by adding the acquired delay amount to the presentation time represented by the presentation time information.
A delay adjustment method comprising:
- receiving an MMT (MPEG Multimedia Transport) stream including an MMT packet to which output time information representing a time of output from a multiplexing apparatus provided in transmission equipment and presentation time information obtained by adding a delay time by the multiplexing apparatus to a presentation time at which an accessible data unit formed from a payload is displayed are added;
- calculating a transmission delay time from a reception time of the MMT packet and the time represented by the output time information;
- acquiring a delay amount from the calculated transmission delay time and the delay time represented by the presentation time information;
- and
- displaying the MMT stream at a time obtained by adding the acquired delay amount to the presentation time represented by the presentation time information.
Dependencies are inferred from the claim text.