Information processing device and method

An information processing device comprising:

• circuitry configured to
• acquire timed metadata that changes in a time direction on a basis of timed metadata identification information stored in an MPEG_media extension in a scene descriptive file describing a scene of 3D object content and timed metadata access information stored in a camera object in the scene descriptive file;
• and
• generate a display image of the 3D object content on a basis of the timed metadata, wherein
• the circuitry is configured to acquire the timed metadata on a basis of the timed metadata access information stored in an MPEG_timed_camera extension of the camera object in the scene descriptive file, the timed metadata access information specifying an accessor object corresponding to an area of a buffer object to be referenced using an accessor index for each of a plurality of parameters.

An information processing method comprising:

• acquiring timed metadata that changes in a time direction on a basis of timed metadata identification information stored in an MPEG_media extension in a scene descriptive file describing a scene of 3D object content and timed metadata access information stored in a camera object in the scene descriptive file;
• and
• generating a display image of the 3D object content on a basis of the timed metadata acquired, wherein
• the acquiring includes acquiring the timed metadata on a basis of the timed metadata access information stored in an MPEG_timed_camera extension of the camera object in the scene descriptive file, the timed metadata access information specifying an accessor object corresponding to an area of a buffer object to be referenced using an accessor index for each of a plurality of parameters.