Data recording method
View Patent ↗When recording an AV stream, and carrying out a playlist editing, to carry out the editing with an accuracy of a frame unit. An editing point of a recorded AV stream file is configured with a position of a GOP and a frame quantity of the GOP, and recorded as a management file.
1. An image and sound stream recording method comprising:
recording an image and sound stream of a program, and
recording management information which manages the image and sound stream,
wherein the management information includes:
original program information (OPGR) which indicates a whole playback range of the program;
playlist information (PGRG) which indicates a playback order of the OPGR;
user defined integrated information (UDFF) which includes at least one of the OPGR and the PGRG;
a PGRG management table about the PGRG; and
a user defined integrated management table about the UDFF;
wherein the user defined integrated management table stores thumbnail position information separate from the PGRG management table, for a thumbnail which is representative of a GOP, where the thumbnail position information stored in the user defined integrated management table includes an aggregated collection of:
an ALU number which indicates an ALU which includes the GOP represented by the thumbnail, the ALU number being a minimum unit when recording the image and sound stream which have been encoded,
an RP number which indicates a RP corresponding to the GOP, and
a frame number which indicates a frame displayed as the thumbnail representative of the GOP.
2. A recording apparatus comprising:
a recording unit which records an image and sound stream of a program, and management information which manages the image and sound stream, wherein the management information includes:
original program information (OPGR) which indicates a whole playback range of the program;
playlist information (PGRG) which indicates a playback order of the OPGR;
user defined integrated information (UDFF) which includes at least one of the OPGR and the PGRG; and
a PGRG management table about the PGRG; and
a controlling unit which controls the recording unit;
wherein the management information includes a user defined integrated management table about the UDFF; and
wherein the user defined integrated management table stores thumbnail position information separate from the PGRG management table, for a thumbnail which is representative of a GOP, where the thumbnail position information stored in the user defined integrated management table includes an aggregated collection of:
an ALU number which indicates an ALU which includes the GOP represented by the thumbnail, the ALU number being a minimum unit when recording the image and sound stream which have been encoded,
an RP number which indicates a RP corresponding to the GOP, and
a frame number which indicates a frame displayed as the thumbnail representative of the GOP.
3. An image and sound stream reproducing method comprising:
reproducing an image and sound stream of a program, and
reproducing management information which manages the image and sound stream,
wherein the management information includes:
original program information (OPGR) which indicates a whole playback range of the program;
playlist information (PGRG) which indicates a playback order of the OPGR;
user defined integrated information (UDFF) which includes at least one of the OPGR and the PGRG;
a PGRG management table about the PGRG; and
a user defined integrated management table about the UDFF;
wherein the user defined integrated management table stores thumbnail position information separate from the PGRG management table, for a thumbnail which is representative of a GOP, where the thumbnail position information stored in the user defined integrated management table includes an aggregated collection of:
an ALU number which indicates an ALU which includes the GOP represented by the thumbnail, the ALU number being a minimum unit when recording the image and sound stream which have been encoded,
an RP number which indicates a RP corresponding to the GOP, and
a frame number which indicates a frame displayed as the thumbnail representative of the GOP.
4. A reproducing apparatus comprising:
a reproducing unit which reproduces an image and sound stream of a program, and management information which manages the image and sound stream;
and a controlling unit which controls the reproducing unit;
wherein the management information includes:
original program information (OPGR) which indicates a whole playback range of the program;
playlist information (PGRG) which indicates a playback order of the OPGR;
user defined integrated information (UDFF) which includes at least one of the OPGR and the PGRG;
a PGRG management table about the PGRG; and
a user defined integrated management table about the UDFF;
wherein the user defined integrated management table stores thumbnail position information separate from PGRG management table, for a thumbnail which is representative of a GOP,
where the thumbnail position information stored in the user defined integrated management table includes an aggregated collection of:
an ALU number which indicates an ALU which includes the GOP represented by the thumbnail, the ALU number being a minimum unit when recording the image and sound stream which have been encoded,
an RP number which indicates a RP corresponding to the GOP,
and a frame number which indicates a frame displayed as the thumbnail representative of the GOP.