File reproduction apparatus, file reproduction method, file reproduction method program and recording medium for recording file reproduction method program
AssigneeSony Corporation
InventorsMasaharu Murakami, Shigeru Kashiwagi, Haruo Yoshida, Hiroshi Jinno
Life of this patent
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Abstract
The present invention is applied to reproduction of typically a fragment movie file having a QT format. In accordance with the present invention, management information associated with each block following a first block of the fragment movie file is modified to information compatible with management information associated with the first block and real data of the file is reproduced on the basis of the modified management information.
Claims10
A file reproduction apparatus for reproducing a file recorded on a recording medium, wherein:
- said file is as a file containing real data and management information used for reproducing said real data;
- said management information is provided for each of blocks composed of a first block and a sequence of subsequent blocks following said first bock as blocks of said real data;
- said management information associated with each of said subsequent blocks included in said real data as blocks other than said first block of said real data is provided as information including standard settings and at least some settings taking said standard settings as a reference;
- said management information associated with said first block of said real data is provided as settings corresponding to said standard settings;
- said management information associated with each of said subsequent blocks is modified to settings compatible with said management information associated with said first block;
- and
- said real data is reproduced on the basis of said
- modified management information.
A file reproduction method for reproducing a file recorded on a recording medium, wherein:
- said file is as a file containing real data and management information used for reproducing said real data;
- said management information is provided for each of blocks composed of a first block and a sequence of subsequent blocks following said first bock as blocks of said real data;
- said management information associated with each of said subsequent blocks included in said real data as blocks other than said first block of said real data is provided as information including standard settings and at least some settings taking said standard settings as a reference;
- said management information associated with said first block of said real data is provided as settings corresponding to said standard settings;
- said management information associated with each of said subsequent blocks is modified to settings compatible with said management information associated with said first block;
- and
- said real data is reproduced on the basis of said modified management information.
A program to be executed by a computer as a program implementing a file reproduction method for reproducing a file recorded on a recording medium by execution of a predetermined processing procedure, wherein:
- said file is created to as a file containing real data and management information used for reproducing said real data;
- said management information is provided for each of blocks composed of a first block and a sequence of subsequent blocks following said first bock as blocks of said real data;
- said management information associated with each of said subsequent blocks included in said real data as blocks other than said first block of said real data is provided as information including standard settings and at least some settings taking said standard settings as a reference;
- and
- said management information associated with said first block of said real data is provided as settings corresponding to said standard settings,
- said processing procedure comprises the steps of:
- modifying said management information associated with each of said subsequent blocks to settings compatible with said management information associated with said first block;
- and
- reproducing said real data on the basis of said modified management information.
A recording medium used for storing a program to be executed by a computer as a program implementing a file reproduction method for reproducing a file recorded on another recording medium by execution of a predetermined processing procedure, wherein:
- said file is created to as a file containing real data and management information used for reproducing said real data;
- said management information is provided for each of blocks composed of a first block and a sequence of subsequent blocks following said first bock as blocks of said real data;
- said management information associated with each of said subsequent blocks included in said real data as blocks other than said first block of said real data is provided as information including standard settings and at least some settings taking said standard settings as a reference;
- and
- said management information associated with said first block of said real data is provided as settings corresponding to said standard settings;
- and
- said processing procedure comprises the steps of:
- modifying said management information associated with each of said subsequent blocks to settings compatible with said management information associated with said first block,
- reproducing said real data on the basis of said modified management information.
Dependencies are inferred from the claim text.