Information processing apparatus, information processing method, reproduction processing apparatus, and reproduction processing method

Abstract

Provided are an information processing apparatus, a reproduction processing apparatus, an information processing method, and a reproduction processing method that enable a client device to efficiently select a content configuration. A preprocessing unit generates content configuration selection information, with respect to one or a plurality of contents, for determining whether or not each of the contents is reproducible, each of the contents having a content configuration including one or more three-dimensional objects and space arrangement information therefor to represent a virtual space. A file generation unit generates a file including data about the virtual space and the content configuration selection information.

1 . An information processing apparatus comprising:
 a preprocessing unit that generates content configuration selection information, with respect to one or a plurality of contents, for determining whether or not each of the contents is reproducible, each of the contents having a content configuration including one or more three-dimensional objects and space arrangement information therefor to represent a virtual space; and   a file generation unit that generates a file including data about the virtual space and the content configuration selection information.   
     
     
         2 . The information processing apparatus according to  claim 1 , wherein the preprocessing unit sets the content configuration selection information to include availability identification information for determining whether or not decoding and rendering are executable entirely with respect to the virtual space in a reproduction processing apparatus reproducing the contents. 
     
     
         3 . The information processing apparatus according to  claim 2 , wherein the preprocessing unit stores the content configuration selection information in a scene description. 
     
     
         4 . The information processing apparatus according to  claim 3 , wherein the preprocessing unit stores the content configuration selection information in a switch node of the scene description. 
     
     
         5 . The information processing apparatus according to  claim 3 , wherein the preprocessing unit stores the content configuration selection information for each content configuration in the scene description. 
     
     
         6 . The information processing apparatus according to  claim 2 , wherein
 the preprocessing unit generates the content configuration selection information as metadata, and   the file generation unit generates a content file storing the content configuration selection information.   
     
     
         7 . The information processing apparatus according to  claim 6 , wherein the file generation unit generates the content file as an ISO base media file format (ISOBMFF) file, and stores the content configuration selection information in 6DoFContentStructBox of SampleEntry of the content file. 
     
     
         8 . The information processing apparatus according to  claim 2 , wherein the preprocessing unit has the content configuration selection information for each group in which the content configuration is determined in advance, and sets the content configuration selection information of the group to which each of the contents belongs as the content configuration selection information of each of the contents. 
     
     
         9 . The information processing apparatus according to  claim 2 , wherein
 the preprocessing unit generates the content configuration selection information as metadata, and   the file generation unit generates a metadata file storing the content configuration selection information.   
     
     
         10 . The information processing apparatus according to  claim 9 , wherein the file generation unit generates the metadata file as a media presentation description (MPD) file, and stores the content configuration selection information in AdaptationSet of the MPD file. 
     
     
         11 . The information processing apparatus according to  claim 2 , wherein
 with respect to the plurality of contents having different content configurations, the preprocessing unit generates different scene descriptions for the respective content configurations, and   the file generation unit stores the content configuration selection information in AdaptationSet of an MPD file or 6DoFContentStructBox of SampleEntry of an ISOBMFF file for each of the scene descriptions.   
     
     
         12 . The information processing apparatus according to  claim 1 , wherein the preprocessing unit sets information indicating a reproduction processing capability with which the content is reproducible as the content configuration selection information. 
     
     
         13 . The information processing apparatus according to  claim 12 , wherein the preprocessing unit sets the content configuration selection information to include information indicating a reproduction processing capability with which a part of the content is reproducible. 
     
     
         14 . An information processing method for causing a computer to execute:
 generating content configuration selection information, with respect to one or a plurality of contents, for determining whether or not each of the contents is reproducible, each of the contents having a content configuration including one or more three-dimensional objects and space arrangement information therefor to represent a virtual space; and   generating a file including data about the virtual space and the content configuration selection information.   
     
     
         15 . A reproduction processing apparatus comprising:
 a file acquisition unit that acquires a file including content configuration selection information, with respect to one or a plurality of contents, for determining whether or not each of the contents is reproducible, and data about the contents, each of the contents having a content configuration including one or more three-dimensional objects and space arrangement information therefor to represent a virtual space;   a file processing unit that acquires the content configuration selection information from the file acquired by the file acquisition unit, determines whether or not each of the contents is reproducible on the basis of the acquired content configuration selection information, and selects the content to be reproduced; and   a reproduction unit that reproduces the content selected by the file processing unit.   
     
     
         16 . A reproduction processing method for causing a computer to execute:
 acquiring a file including content configuration selection information, with respect to one or a plurality of contents, for determining whether or not each of the contents is reproducible, each of the contents having a content configuration including one or more three-dimensional objects and space arrangement information therefor to represent a virtual space;   acquiring the content configuration selection information from the acquired file, determining whether or not each of the contents is reproducible on the basis of the acquired content configuration selection information, and selecting the content to be reproduced;   acquiring data about the selected content; and   reproducing the selected content using the acquired data.