Reproduction device, reproduction method, reproduction program, and recording medium
First Claim
1. A reproducing apparatus for reproducing content data recorded on a disc shaped recording medium, the reproducing apparatus comprising:
- reading means for reading from the recording medium a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles; and
reproducing means for controlling the reading means so that the video stream that composes the angles is read in accordance with the position information.
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Accused Products
Abstract
For a large capacity recording medium, a user interface having high flexibility and enriched representation is accomplished. A flag that represents whether a play item has a multiple angle structure of which the play item is reproduced with a plurality of angles is described. In addition, a flag that represents whether the beginning of each decode unit is an angle switchable point is described. In a seamless multiple angle structure, the current angle can be switched without need to increase the number of interleave units. In a nonseamless multiple angle structure, with the flag, in a predetermined region on the rear end side of each angle, the current angle is prohibited from being switched. Thus, when a play item exits from the multiple angle, discontinuity in the reproduction can be prevented. In addition, with a flag that represents whether a sub play item should be reproduced not in synchronization with a main path, the sub play item of only audio data can be used as a BGM.
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Citations
37 Claims
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1. A reproducing apparatus for reproducing content data recorded on a disc shaped recording medium, the reproducing apparatus comprising:
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reading means for reading from the recording medium a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles; and
reproducing means for controlling the reading means so that the video stream that composes the angles is read in accordance with the position information. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A reproducing method for reproducing content data recorded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles; and
controlling the reading step so that the video stream that composes the angles is read in accordance with the position information.
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9. A reproducing program that causes a computer device to execute a reproducing method for reproducing content data recorded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles; and
controlling the reading step so that the video stream that composes the angles is read in accordance with the position information.
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10. A disc shaped recording medium on which a reproducing program that can be read by a computer device has been recorded, the reproducing program causing the computer device to execute a reproducing method for reproducing content data recorded on the recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles; and
controlling the reading step so that the video stream that composes the angles is read in accordance with the position information.
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11. A disc shaped recording medium on which content data has been recorded,
wherein a video stream, a first flag described for each reproduction unit of the video stream, the number of angles that the reproduction unit contains, and position information that represents the positions of the angles on the video stream have been recorded on the recording medium, the first flag representing whether or not the reproduction unit can be reproduced with a plurality of angles, and wherein the video stream that composes the angles is read in accordance with the position information.
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18. A reproducing apparatus for reproducing content data recorded on a disc shaped recording medium, the reproducing apparatus comprising:
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reading means for reading from the recording medium a main stream mainly reproduced, a sub stream reproduced as a sub of the main stream along therewith, and a flag that represents whether or not the sub stream should be repeatedly reproduced not in synchronization with the main stream; and
reproducing means for controlling the reproduction of the sub stream in accordance with the flag. - View Dependent Claims (19, 20)
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21. A reproducing method for reproducing content data recorded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a main stream mainly reproduced, a sub stream reproduced as a sub of the main stream along therewith, and a flag that represents whether or not the sub stream should be repeatedly reproduced not in synchronization with the main stream; and
controlling the reproduction of the sub stream in accordance with the flag.
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22. A reproducing program that causes a computer device to execute a reproducing method for reproducing content data recorded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a main stream mainly reproduced, a sub stream reproduced as a sub of the main stream along therewith, and a flag that represents whether or not the sub stream should be repeatedly reproduced not in synchronization with the main stream; and
controlling the reproduction of the sub stream in accordance with the flag.
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23. A recording medium on which a reproducing program that can be read by a computer device has been recorded, the reproducing program that causes the computer device to execute a reproducing method for reproducing content data recorded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium a main stream mainly reproduced, a sub stream reproduced as a sub of the main stream along therewith, and a flag that represents whether or not the sub stream should be repeatedly reproduced not in synchronization with the main stream; and
controlling the reproduction of the sub stream in accordance with the flag.
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24. A disc shaped recording medium on which content data has been recorded,
wherein a main stream mainly reproduced, a sub stream reproduced as a sub of the main stream along therewith, and a flag have been recorded on the recording medium, the flag representing whether or not the sub stream should be repeatedly reproduced not in synchronization with the main stream, and wherein the reproduction of the sub stream is controlled in accordance with the flag.
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27. A reproducing apparatus for reproducing content data recoded on a disc shaped recording medium, the reproducing apparatus comprising:
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reading means for reading from the recording medium video data, audio data reproduced in accordance with the video data, and a flag that represents whether the video data and the audio data have been recorded as a multiplexed file or independent files; and
reproducing means for reproducing the video data and the audio data that are read by the reading means in accordance with the flag that is read by the reading means. - View Dependent Claims (28, 29, 30)
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31. A reproducing method for reproducing content data recoded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium video data, audio data reproduced in accordance with the video data, and a flag that represents whether the video data and the audio data have been recorded as a multiplexed file or independent files; and
reproducing the video data and the audio data that are read at the reading step in accordance with the flag that is read at the reading step.
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32. A reproducing program that causes a computer device to execute a reproducing method for reproducing content data recoded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium video data, audio data reproduced in accordance with the video data, and a flag that represents whether the video data and the audio data have been recorded as a multiplexed file or independent files; and
reproducing the video data and the audio data that are read at the reading step in accordance with the flag that is read at the reading step.
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33. A recording medium on which a reproducing program that can be read by a computer device has been recorded, the reproducing program causing the computer device to execute a reproducing method for reproducing content data recoded on a disc shaped recording medium, the reproducing method comprising the steps of:
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reading from the recording medium video data, audio data reproduced in accordance with the video data, and a flag that represents whether the video data and the audio data have been recorded as a multiplexed file or independent files; and
reproducing the video data and the audio data that are read at the reading step in accordance with the flag that is read at the reading step.
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34. A disc shaped recording medium on which content data has been recorded,
wherein video data, audio data reproduced in accordance with the video data, and a flag have been recorded on the recording medium, the flag representing whether the video data and the audio data have been recorded as a multiplexed file or independent files, and wherein the video data and the audio data that are read at the reading step are reproduced in accordance with the flag that is read at the reading step.
Specification