Data recording device, data recording method, data processing device, data processing method, program, program recording medium, data recording medium, and data structure
View Patent ↗To effectively reproduce video depending on the performance of a reproducing apparatus. A controller 446 determines whether or not an entry of video is a beginning of a chapter of video or whether or not a scene change of the entry is important. In other words, the controller 446 determines whether or not an entry under evaluation corresponds to a time of a chapter of chapter scene change information 447 or whether or not the entry is an important scene change. If an entry under evaluation corresponds to a time of a chapter, the controller 446 sets priority_flag=3 and stores it to an output server 426 . The present invention can be applied to a game device or the like that uses for example a DVD.
1. A non-transitory computer readable medium on which, together with stream data, data containing a priority level of each entry point of the stream data have been recorded, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the priority level of a next entry one minute from a beginning of a current entry is set when the current entry is the important scene change, and the priority level of a next entry three seconds from the beginning of the current entry is set when the current entry is the regular scene change.
2. A data processing apparatus, comprising:
a reading portion which reads, together with stream data containing a priority level of each entry point of the stream data from a data record medium, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the reading portion reading the priority level of a next entry one minute from a beginning of a current entry when the current entry is the important scene change, and reading the priority level of a next entry three seconds from the beginning of the current entry when the current entry is the regular scene change; and
a reproducing portion which reproduces only stream data corresponding to entry points equal to or higher than a predetermined priority level from stream data read by the reading portion.
3. The data processing apparatus as set forth in claim 2 , wherein the stream data are video stream data or subtitle stream data.
4. A data processing method, comprising:
reading, together with stream data, data containing a priority level of each entry point of the stream data from a data record medium, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the reading including reading the priority level of a next entry one minute from a beginning of a current entry when the current entry is the important scene change, and reading the priority level of a next entry three seconds from the beginning of the current entry when the current entry is the regular scene change; and
reproducing only stream data corresponding to entry points equal to or higher than a predetermined priority level from stream data read at the reading step.
5. A non-transitory computer readable medium encoded with a program which causes a computer to execute a method, comprising:
reading, together with stream data, data containing a priority level of each entry point of the stream data from a data record medium, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the reading including reading the priority level of a next entry one minute from a beginning of a current entry when the current entry is the important scene change, and reading the priority level of a next entry three seconds from the beginning of the current entry when the current entry is the regular scene change; and
reproducing only stream data corresponding to entry points equal to or higher than a predetermined priority level from stream data read at the reading step.
6. A data recording apparatus, comprising:
a recognizing portion which recognizes entry points of stream data;
a setting portion which sets a priority level of each entry point corresponding to a recognized result of the recognizing portion, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the setting portion setting the priority level of a next entry one minute from a beginning of a current entry when the current entry is set as the important scene change, and the setting portion setting the priority level of a next entry three seconds from the beginning of the current entry when the current entry is set as the regular scene change; and
a recording portion which records together with the stream data, a priority level of each entry point set by the setting portion to a data record medium.
7. The data recording apparatus as set forth in claim 6 , wherein the stream data are video stream data or subtitle stream data.
8. A data recording method, comprising:
recognizing entry points of stream data;
setting a priority level of each entry point depending on a recognized result at the recognizing, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the setting including setting the priority level of a next entry one minute from a beginning of a current entry when the current entry is set as the important scene change, and setting the priority level of a next entry three seconds from the beginning of the current entry when the current entry is set as the regular scene change; and
recording, together with the stream data, a priority level of each entry point set at the setting to a data record medium.
9. A non-transitory computer readable medium encoded with a program which causes a computer to execute a method, comprising:
recognizing entry points of stream data;
setting a priority level of each entry point depending on a recognized result at the recognizing, the priority level being one of a top of a chapter, an important scene change, and a regular scene change, the setting including setting the priority level of a next entry one minute from a beginning of a current entry when the current entry is set as the important scene change, and setting the priority level of a next entry three seconds from the beginning of the current entry when the current entry is set as the regular scene change; and
recording, together with the stream data, a priority level of each entry point set at the setting to a data record medium.