Information processing device and information processing method

An information processing method executed by an information processing device, the method comprising:

• generating metadata that includes
• reproduction information necessary to reproduce a bitstream from among a plurality of bitstreams generated from 3D data having no time information, and
• reproduction feasibility information to be used to determine feasibility of reproducing the bitstream generated from the 3D data;
• and
• generating a file in which the bitstream generated from the 3D data and the metadata are stored,
• wherein the reproduction information includes
• bitstream combination information that indicates a combination of bitstreams among the plurality of bitstreams to be used for reproduction, and
• reproduction start point information that indicates a reproduction start point,
• wherein the reproduction start point information indicates a bitstream among the plurality of bitstreams to be reproduced first,
• wherein the reproduction information further includes a V-PCC Unit Header as information for reconstructing the 3D data from the plurality of bitstreams,
• wherein the V-PCC Unit Header is signaled using a V-PCC still image format,
• wherein the reproduction feasibility information is indicated using a structure of a file configuration of an ItemProperty within the generated file,
• wherein the reproduction feasibility information includes information that indicates that each bitstream of the plurality of bitstreams is a part of data forming the 3D data, and
• wherein the reproduction feasibility information further includes, as determination information for allowing a determination that an item is not able to be singly displayed, information that indicates a hidden image.

An information processing device comprising:

• a metadata generation section configured to generate metadata that includes
• reproduction information necessary to reproduce a plurality of bitstreams generated from 3D data having no time information, and
• reproduction feasibility information to be used to determine feasibility of reproducing the plurality of bitstreams generated from the 3D data;
• and
• a file generation section configured to generate a file in which the plurality of bitstreams generated from the 3D data and the metadata are stored,
• wherein the reproduction information includes
• bitstream combination information that indicates a combination of bitstreams among the plurality of bitstreams to be used for reproduction, and
• reproduction start point information that indicates a reproduction start point,
• wherein the reproduction start point information indicates a bitstream among the plurality of bitstreams to be reproduced first,
• wherein the reproduction information further includes a V-PCC Unit Header as information for reconstructing the 3D data from the plurality of bitstreams,
• wherein the V-PCC Unit Header is signaled using a V-PCC still image format,
• wherein the reproduction feasibility information is indicated using a structure of a file configuration of an ItemProperty within the generated file,
• wherein the reproduction feasibility information includes information that indicates that each bitstream of the plurality of bitstreams is a part of data forming the 3D data,
• wherein the reproduction feasibility information further includes, as determination information for allowing a determination that an item is not able to be singly displayed, information that indicates a hidden image, and
• wherein the metadata generation section and the file generation section are each implemented via at least one processor.

An information processing method executed by an information processing device, the method comprising:

• generating metadata that includes
• reproduction information necessary to reproduce a plurality of bitstreams generated from 3D data having no time information, and
• reproduction feasibility information to be used to determine feasibility of reproducing the plurality of bitstreams generated from the 3D data;
• and
• generating a file in which the plurality of bitstreams generated from the 3D data and the metadata are stored,
• wherein the reproduction information includes
• bitstream combination information that indicates a combination of bitstreams among the plurality of bitstreams to be used for reproduction, and
• reproduction start point information that indicates a reproduction start point,
• wherein the reproduction start point information indicates a bitstream among the plurality of bitstreams to be reproduced first,
• wherein the reproduction information further includes a V-PCC Unit Header as information for reconstructing the 3D data from the plurality of bitstreams,
• wherein the V-PCC Unit Header is signaled using a V-PCC still image format, wherein the reproduction feasibility information is indicated using a structure of a file configuration of an ItemProperty within the generated file,
• wherein the reproduction feasibility information includes information that indicates that each bitstream of the plurality of bitstreams is a part of data forming the 3D data, and
• wherein the reproduction feasibility information further includes, as determination information for allowing a determination that an item is not able to be singly displayed, information that indicates a hidden image.