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

1. An information processing apparatus comprising:

circuitry configured to:

acquire a content including a plurality of component streams, wherein the plurality of component streams include a metadata stream;

generate content random access point (RAP) information indicating random access points of the content on a basis of random access points of the component streams of the acquired content;

generate a content file in which the content RAP information is stored in a metadata area,

wherein the content is video codec based point cloud compression (V-PCC) content, and the content file is an ISOBMFF-compliant file, and

wherein, based on the content RAP information stored in the metadata area, content RAP information of the plurality of component streams are determined; and

store a flag in a sample entry of a metadata track for the metadata stream, wherein the flag indicates that the content RAP information stored in the metadata stream is RAP information of the V-PCC content that satisfies a condition that the content RAPs are of a same type in the plurality of component streams.

2. The information processing apparatus according to claim 1 ,

wherein the plurality of component streams are included in a point cloud frame as the component streams, and

in a case where DTSs of samples of the respective component streams included in the point cloud frame match, the circuitry generates the content RAP information indicating that a first position, at which the component streams that have been encoded all have a random access point, is a random access point of the content and stores the content RAP information that has been generated in a sample entry that is included into the content file.

3. An information processing method for causing circuitry to execute processes comprising the steps of:

acquiring a content including a plurality of component streams, wherein the plurality of component streams include a metadata stream;

generating content RAP information indicating random access points of the content on a basis of random access points of the component streams of the content that has been acquired;

generating a content file in which the content RAP information is stored in a metadata area,

wherein the content is video codec based point cloud compression (V-PCC) content, and the content file is an ISOBMFF-compliant file, and

wherein, based on the content RAP information stored in the metadata area, content RAP information of the plurality of component streams are determined; and

storing a flag in a sample entry of a metadata track for the metadata stream, wherein the flag indicates that the content RAP information stored in the metadata stream is RAP information of the V-PCC content that satisfies a condition that the content RAPs are of a same type in the plurality of component streams.

4. A reproduction processing apparatus comprising:

circuitry configured to:

receive information of a content including a plurality of component streams, wherein the plurality of component streams include a metadata stream;

acquire content RAP information indicating a random access point of the content from the information of the content that has been received and specify a random access point of each of the component streams from the content RAP information;

reproduce the content from a random access point of each of the component streams;

determine, based on the content RAP information stored in a metadata area, content RAP information of the plurality of component streams,

wherein the content is video codec based point cloud compression (V-PCC) content, and a content file in which the content RAP information is stored in the metadata stream of the file is an ISOBMFF-compliant file; and

store a flag in a sample entry of a metadata track for the metadata stream, wherein the flag indicates that the content RAP information stored in the metadata stream is RAP information of the V-PCC content that satisfies a condition that the content RAPs are of a same type in the plurality of component streams.

5. The reproduction processing apparatus of claim 4 , wherein the content RAP information of the plurality of component streams are aligned.

6. The reproduction processing apparatus of claim 4 , wherein it is determined whether the content RAP information of the plurality of component streams are aligned.

7. A reproduction processing method for causing circuitry to execute processes comprising:

receiving information of a content including a plurality of component streams, wherein the plurality of component streams include a metadata stream;

acquiring content RAP information indicating a random access point of the content from the information of the content;

specifying a random access point of each of the component streams on a basis of the content RAP information that has been acquired;

reproducing the content from a random access point of each of the component streams that has been specified; and

determining, based on the content RAP information stored in a metadata area, content RAP information of the plurality of component streams, and

wherein the content is video codec based point cloud compression (V-PCC) content, and a content file in which the content RAP information is stored in the metadata stream of the file is an ISOBMFF-compliant file; and

storing a flag in a sample entry of a metadata track for the metadata stream, wherein the flag indicates that the content RAP information stored in the metadata stream is RAP information of the V-PCC content that satisfies a condition that the content RAPs are of a same type in the plurality of component streams.