Multiplexing apparatus and method for video transmission
AssigneeKabushiki Kaisha Toshiba
InventorToshio Suzuki
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a multiplexing apparatus includes a processor and a multiplexer. The processor is configured to identify the version of the video transmission standard of each of input packets, and to convert the version of the packet into a reference version of a predetermined video transmission standard if the identified version is different from the reference version. The multiplexer is configured to multiplex the input packets, based on the reference version.
Claims8
A multiplexing apparatus compatible with MMT (MPEG media transport) standard which executes multiplexing processing even if MMTP (MMT Protocol)/IP (Internet Protocol) packets input are of different versions of MMT standard, the MMTP/IP packets comprising packetized components, the apparatus comprising:
- an MMTP processing unit including an MMTP version check unit and an MMTP conversion unit,
- the MMTP version check unit determining a version of video transmission standard for each of the input packets, and identifying a version of the MMTP/IP packets based on comparison with a plurality of predetermined versions if the determined version is different from a reference version of a predetermined video transmission standard,
- the MMTP conversion unit converting the identified version into the reference version, wherein the video transmission standard has a plurality of versions, from a latest version to an original version, and
- the MMTP version check unit determining whether a version of the input MMTP/IP packet is identical to the reference version, with the latest version regarded as the reference version, and identifying the version of the MMTP/IP packet based on comparison with a plurality of versions other than the latest version if the identified version is different from the reference version, wherein the versions used by the MMTP version check unit for comparison including versions from a second latest version to the original version;
- and
- a multiplexer configured to multiplex the input MMTP/IP packets, based on the reference version.
A multiplexing method for use in a multiplexing apparatus compatible with MMT (MPEG media transport) standard which multiplexes a plurality of input packets by executing multiplexing processing even if MMTP (MMT Protocol)/IP (Internet Protocol) packets input are of different versions of MMT standard, the MMTP/IP packets comprising packetized components, the apparatus comprising an MMTP processing unit including an MMTP version check unit and an MMTP conversion unit, and a multiplexer, the method comprising:
- the MMTP version check unit determining a version of video transmission standard for each of the input MMTP/IP packets, wherein the video transmission standard has a plurality of versions, from a latest version to an original version;
- the MMTP version check unit identifying a version of the MMTP/IP packet based on comparison with a plurality of predetermined versions if the determined version is different from a reference version of a predetermined video transmission standard, wherein identifying the version of the packet comprises determining whether a version of an input MMTP/IP packet is identical to the reference version, with the latest version regarded as the reference version;
- the MMTP version check unit identifying the version of the MMTP/IP packet based on comparison with a plurality of versions other than the latest version if the identified version is different from the reference version, the versions used for comparison including versions from a second latest version to the original version;
- the MMTP conversion unit converting the identified version into the reference version;
- and
- the multiplexer multiplexing the input MMTP/IP packets, based on the reference version.
Dependencies are inferred from the claim text.