Information processing device, information processing method, reproduction processing device, and reproduction processing method
Provided are an information processing device, an information processing method, a reproduction processing device, and a reproduction processing method that provide a high-quality viewing experience to a user. A metadata generation unit generates transition identification information for identifying a second viewpoint that is a viewpoint position of a second video transitionable from a first video whose viewpoint position is a first viewpoint. A file generation unit generates a file including data of the first video data and the transition identification information.
1. An information processing device comprising:
processing circuitry configured to
generate transition identification information for identifying a second viewpoint which is a viewpoint position of a second video transitionable from a first video whose viewpoint position is a first viewpoint;
generate transition execution region information indicating a transition execution region on the first video that receives an operation for transition from the first viewpoint to the second viewpoint; and
generate a file including data of the first video, the transition identification information, and the transition execution region information.
2. The information processing device according to claim 1 , wherein the processing circuitry generates the transition identification information including identification information for specifying the second viewpoint.
3. The information processing device according to claim 1 , wherein the processing circuitry generates the transition identification information including identification information of a viewpoint group including a plurality of the second viewpoints.
4. The information processing device according to claim 1 , wherein the processing circuitry generates the transition identification information including information regarding access to another video specified by URL (a uniform resource locator).
5. The information processing device according to claim 1 , wherein the processing circuitry stores the transition identification information in ViewpointTrackGroupBox in TrackBox of an ISOBMFF file.
6. The information processing device according to claim 1 , wherein the processing circuitry stores the transition identification information in a VWPT descriptor of MPD (a media presentation description) file.
7. The information processing device according to claim 1 , wherein the processing circuitry generates the transition execution region information including a size of the transition execution region and a display position in the first video.
8. The information processing device according to claim 1 , wherein the processing circuitry stores the transition execution region information in ViewpointTrackGroupBox in TrackBox of an ISOBMFF file.
9. The information processing device according to claim 1 , wherein the processing circuitry displays the transition execution region information by an overlay of OMAF.
10. The information processing device according to claim 9 , wherein the processing circuitry generates the transition execution region information including a flag indicating that the transition execution region and a video display region in the overlay are the same region on the first video.
11. The information processing device according to claim 1 , wherein the processing circuitry includes time information for controlling display of the transition execution region on the first video.
12. The information processing device according to claim 1 , wherein
the processing circuitry generates transition trigger information indicating an operation of causing transition from the first viewpoint to the second viewpoint, and
the processing circuitry generates the file including the transition trigger information.
13. The information processing device according to claim 12 , wherein the processing circuitry generates the transition trigger information indicating that the transition is to be caused by clicking.
14. The information processing device according to claim 12 , wherein the processing circuitry generates the transition trigger information indicating that the transition is to be caused by zooming.
15. The information processing device according to claim 14 , wherein the processing circuitry generates the transition trigger information including a threshold of the zooming that causes the transition.
16. An information processing method comprising:
generating, using processing circuitry, identification information for identifying a second viewpoint which is a viewpoint position of a second video transitionable from a first video whose viewpoint position is a first viewpoint;
generating, using the processing circuitry, transition execution region information indicating a transition execution region on the first video that receives an operation for transition from the first viewpoint to the second viewpoint; and
generating, using the processing circuitry, a file including data of the first video, the transition identification information, and the transition execution region information.
17. A reproduction processing device comprising:
processing circuitry configured to
acquire a file including (1) transition identification information for identifying a second viewpoint which is a viewpoint position of a second video transitionable from a first video whose viewpoint position is a first viewpoint, and (2) transition execution region information indicating a transition execution region on the first video that receives an operation for transition from the first viewpoint to the second viewpoint;
acquire the transition identification information from the file and specify the second viewpoint transitionable from the first viewpoint on a basis of the acquired transition identification information;
acquire the transition execution region information from the file and specify the transition execution region; and
reproduce the first video and output information of the second viewpoint based on the acquired transition identification information and the acquired transition execution region information.
18. A reproduction processing method comprising:
acquiring, using processing circuitry, a file including (1) transition identification information for identifying a second viewpoint which is a viewpoint position of a second video transitionable from a first video whose viewpoint position is a first viewpoint, and (2) transition execution region information indicating a transition execution region on the first video that receives an operation for transition from the first viewpoint to the second viewpoint;
acquiring, using the processing circuitry, the transition identification information from the acquired file and specifying the second viewpoint transitionable from the first viewpoint on a basis of the acquired transition identification information;
acquiring, using the processing circuitry, the transition execution region information from the file and specifying the transition execution region; and
reproducing, using the processing circuitry, the first video and outputting information of the specified second viewpoint based on the acquired transition identification information and the acquired transition execution region information.