Information process apparatus and method, program record medium, and program
View Patent ↗To smoothly reproduce data. A clip generation section 104 generates a clip information file that describes attribute information of each piece of essence data that are necessary to reproduce each piece of essence data generated by a data generation section 103 according to parameter information supplied from an information obtainment section 102 . An index file update section 105 generates in an index file read from an optical disc 17 and stored in a RAM a clip element that describes attribute information of a clip necessary to reproduce the clip according to the parameter information supplied from the information obtainment section 102 and updates the index file. The present invention can be applied to a video program creation support system.
1. A photography apparatus that manages data recorded on a disc-shaped record medium, comprising:
a memory;
information obtainment means for obtaining reproduction information necessary to reproduce the data when the data are recorded on the disc-shaped record medium by the photography apparatus, said data being low resolution video data and video and audio data for each clip;
generation means for generating a plurality of clip management files with which data that compose each clip that is a predetermined structural unit of data are managed, each clip management file describing for one clip (1) the obtained reproduction information of data that compose the clip and (2) an identifier that uniquely identifies data that compose the clip;
registration means for updating management information for all clips, composed of (a) the obtained reproduction information of data that compose each clip, (b) the unique identifier of data that compose each clip, and (c) information that represents a recorded position of data that compose each clip, to an index management file with which all clips and edit lists recorded on the disc-shaped record medium are totally managed; and
successive reproduction means for successively reproducing data that compose all the clips recorded on the disc-shaped record medium in an order of recordation according to the clip management files or the index management file,
wherein when the disc-shaped record medium is loaded into the photography apparatus, the index management file is read from the disc-shaped record medium and stored to the memory of the photography apparatus and thereafter when a clip recorded on the disc-shaped record medium is designated to be reproduced by a reproduction command of the photography apparatus, the corresponding clip management file for the designated clip is read from the disc-shaped record medium and stored to the memory,
wherein the registration means registers the management information of the clip to the last end of the index management file.
2. A method of managing data recorded on a disc-shaped record medium by a photography apparatus, comprising the steps of:
obtaining reproduction information necessary to reproduce the data when the data are recorded on the disc-shaped record medium by the photography apparatus, said data being low resolution video data and video and audio data for each clip;
generating a plurality of clip management files with which data that compose each clip that is a predetermined structural unit of data are managed, each clip management file describing for one clip (1) the obtained reproduction information of data that compose the clip and (2) an identifier that uniquely identifies data that compose the clip;
updating management information for all clips, composed of (a) the obtained reproduction information of data that compose each clip, (b) the unique identifier of data that compose each clip, and (c) information that represents a recorded position of data that compose each clip, to an index management file with which all clips and edit lists recorded on the disc-shaped record medium are totally managed; and
successively reproducing data that compose all the clips recorded on the disc-shaped record medium in an order of recordation according to the clip management files or the index management file,
wherein when the disc-shaped record medium is loaded into the photography apparatus, the index management file is read from the disc-shaped record medium and stored to a memory of the photography apparatus and thereafter when a clip recorded on the disc-shaped record medium is designated to be reproduced by a reproduction command of the photography apparatus, the corresponding clip management file for the designed clip is read from the disc-shaped record medium and stored to the memory,
wherein the management information of the clip is registered to the last end of the index management file.
3. A program record medium on which a computer readable program is recorded, the program causing a computer of a photography apparatus to perform an information process that manages data recorded on a disc-shaped record medium, the program comprising the steps of:
obtaining reproduction information necessary to reproduce the data when the data are recorded on the disc-shaped record medium by the photography apparatus, said data being low resolution video data and video and audio data for each clip;
generating a plurality of clip management files with which data that compose each clip that is a predetermined structural unit of data are managed, each clip management file describing for one clip (1) the obtained reproduction information of data that compose the clip and (2) an identifier that uniquely identifies data that compose the clip;
updating management information for all clips composed of (a) the obtained reproduction information of data that compose each clip, (b) the unique identifier of data that compose each clip, and (c) information that represents a recorded position of data that compose each clip, to an index management file with which all clips and edit lists recorded on the disc-shaped record medium are totally managed; and
successively reproducing data that compose all the clips recorded on the disc-shaped record medium in an order of recordation according to the clip management files or the index management file,
wherein when the disc-shaped record medium is loaded into the photography apparatus, the index management file is read from the disc-shaped record medium and stored to a memory of the photography apparatus and thereafter when a clip recorded on the disc-shaped record medium is designated to be reproduced by a reproduction command of the photography apparatus, the corresponding clip management file for the designated clip is read from the disc-shaped record medium and stored to the memory,
wherein the management information of the clip is registered to the last end of the index management file.
4. A computer implemented program that causes a computer of a photography apparatus to perform an information process that manages data recorded on a disc-shaped record medium, the program comprising the steps of:
obtaining reproduction information necessary to reproduce the data when the data are recorded on the disc-shaped record medium by the photography apparatus, said data being low resolution video data and audio and video data for each clip;
generating a plurality of clip management files with which data that compose each clip that is a predetermined structural unit of data are managed, each clip management file describing for one clip (1) the obtained reproduction information of data that compose the clip and (2) an identifier that uniquely identifies data that compose the clip;
updating management information for all clips, composed of (a) the obtained reproduction information of data that compose each clip, (b) the unique identifier of data that compose each clip, and (c) information that represents a recorded position of data that compose each clip, to an index management file with which all clips and edit lists recorded on the disc-shaped record medium are totally managed; and
successively reproducing data that compose all the clips recorded on the disc-shaped record medium in an order of recordation according to the clip management files or the index management file,
wherein when the disc-shaped record medium is loaded into the photography apparatus, the index management file is read from the disc-shaped record medium and stored to a memory of the photography apparatus and thereafter when a clip recorded on the disc-shaped record medium is designated to be reproduced by a reproduction command of the photography apparatus, the corresponding clip management file for the designated clip is read from the disc-shaped record medium and stored to the memory,
wherein the management information of the clip is registered to the last end of the index management file.