Transport stream processing device, and associated methodology of generating and aligning source data packets in a physical data structure
AssigneeSony Corporation
InventorMotoki Kato
Life of this patent
Estimating the term…
Abstract
A transport stream reproduction device, method thereof, and recording medium for efficiently reproducing transport streams. The reproduction section acquires an entry point map from said recording medium, compares a presentation time stamp (PTS) listed in the entry point map with the designated reproduction start position, and searches entry points adjacent to said designated reproduction start position, and a calculation section calculates an address of a transport packet corresponding to the entry points.
Claims6
A transport stream reproduction device for reproducing a transport stream recorded in data units on a recording medium, comprising:
- reproduction means for reproducing;
- calculating means for calculating an address corresponding to a designated reproduction start position designated by an entry point map listing, the map listing corresponding to a transport packet which contains an entry point;
- and
- a controller configured to control said reproduction section so that a read-out of transport packets starts from the calculated address;
- wherein each data unit is comprised of a predetermined specified number of collected source packets in which each source packet includes a transport packet attached with a header, to constitute said transport stream,
- wherein said controller further controls the reproduction section to acquire an entry point map from said recording medium, compare a presentation time stamp (PTS) listed in said entry point map with said designated reproduction start position, and search entry points adjacent to said designated reproduction start position, and
- said calculating means calculates an address of a transport packet corresponding to said entry points.
A transport stream reproduction method for a transport stream reproduction device for reproducing transport streams recorded in data units recorded on a recording medium, the method comprising:
- calculating an address corresponding to a designated reproduction start position designated by an entry point map listing, the map listing corresponding to a transport packet which contains an entry point;
- reading out said transport packet from said calculated address and controlling a start of a reproduction section of said transport stream reproduction device,
- wherein each data unit is comprised of a predetermined specified number of collected source packets in which each source packet includes a transport packet attached with a header, to constitute said transport stream;
- controlling the reproduction section to acquire an entry point map from said recording medium, compare a presentation time stamp (PTS) listed in said entry point map with said designated reproduction start position, and search entry points adjacent to said designated reproduction start position;
- and
- calculating an address of a transport packet corresponding to said entry points.
A non-transitory computer readable storage medium including computer executable instructions, wherein the instructions, when executed by a transport stream reproduction device, cause the device to perform a method for reproducing transport streams recorded in data units on a data recording medium, the method comprising:
- calculating an address corresponding to a designated reproduction start position designated by an entry point map listing, the map listing corresponding to a transport packet which contains an entry point;
- reading out said transport packet from said calculated address and controlling a start of a reproduction section of said transport stream reproduction device,
- wherein each data unit comprised of a predetermined specified number of collected source packets in which each source packet includes a transport packet attached with a header, to constitute said transport stream;
- controlling the reproduction section to acquire an entry point map from said recording medium, compare a presentation time stamp (PTS) listed in said entry point map with said designated reproduction start position, and search entry points adjacent to said designated reproduction start position;
- and
- calculating an address of a transport packet corresponding to said entry points.
A transport stream reproduction device for reproducing a transport stream recorded in data units on a data recording medium, comprising:
- user input circuitry configured to receive specification of a reproduction start position;
- a calculation means to calculate an address of said data recording medium corresponding to said specified reproduction start position designated by an entry point map listing, the map listing corresponding to a transport packet containing an entry point;
- and
- read-out means for starting readout of said transport packet from the address on said data recording medium calculated by said calculation means,
- wherein each data unit is comprised of a predetermined specified number of collected source packets in which each source packet includes a transport packet attached with a header, to constitute said transport stream;
- acquisition means for acquiring an entry point map from said data recording medium;
- and
- searching means for comparing the specified reproduction start position with a presentation time stamp (PTS) listed in said entry point map and searching for an entry point adjacent to said specified reproduction start position,
- wherein said calculation means calculates the address of said recording medium recorded in said transport packet corresponding to said entry point, using a count contained in said entry point map.
Dependencies are inferred from the claim text.