INFORMATION PROCESSING APPARATUS AND METHOD
The present disclosure relates to an information processing apparatus and method that allows a stream of sub-pictures to be more easily selected. A control file is generated that manages image encoded data for each of a plurality of sub-pictures into which an entire picture is divided and which is then encoded, the control file including region-related information related to a region in the entire picture corresponding to the sub-picture, as information different from arrangement information for each of picture regions, the control file being used for controlling distribution of the image encoded data. The present disclosure can be applied to, for example, an information processing apparatus, an image processing apparatus, an image encoding apparatus, a file generating apparatus, a file transmission apparatus, a distribution apparatus, a file reception apparatus, an image decoding apparatus, or a reproduction apparatus.
1 . An information processing apparatus comprising:
a file generating section configured to generate a control file managing image encoded data for each of a plurality of sub-pictures into which an entire picture is divided and which is then encoded and including region-related information related to a region in the entire picture corresponding to the sub-picture, as information different from arrangement information for each of picture regions, the control file being used for controlling distribution of the image encoded data.
2 . The information processing apparatus according to claim 1 , wherein
the entire picture includes an omnidirectional video.
3 . The information processing apparatus according to claim 1 , wherein
the region-related information is included in the control file as information for each of the sub-pictures.
4 . The information processing apparatus according to claim 3 , wherein
the control file includes an MPD (Media Presentation Description) file,
the image encoded data for each of the sub-pictures is managed for each adaptation set,
the arrangement information for each of the picture regions is stored in a Region-wise packing descriptor, and
the region-related information is defined in Supplemental Property or Essential Property in the MPD file.
5 . The information processing apparatus according to claim 1 , wherein
the control file further includes stereo information including information related to stereo display of an adaptation set.
6 . The information processing apparatus according to claim 5 , wherein
the entire picture includes an omnidirectional video.
7 . The information processing apparatus according to claim 1 , wherein
the control file further includes view information indicating a view type of the sub-picture.
8 . The information processing apparatus according to claim 7 , wherein
the view information includes information for each of regions included in the sub-picture.
9 . The information processing apparatus according to claim 8 , wherein
the control file further includes information indicating whether the view information is present for each of the regions.
10 . The information processing apparatus according to claim 7 , wherein
the control file further includes information indicating whether an adaptation set is stereo-displayable.
11 . An information processing method comprising:
generating a control file managing image encoded data for each of a plurality of sub-pictures into which an entire picture is divided and which is then encoded and including region-related information related to a region in the entire picture corresponding to the sub-picture, as information different from arrangement information for each of picture regions, the control file being used for controlling distribution of the image encoded data.
12 . An information processing apparatus comprising:
a file acquiring section configured to acquire a control file managing image encoded data for each of a plurality of sub-pictures into which an entire picture is divided and which is then encoded and including region-related information related to a region in the entire picture corresponding to the sub-picture, as information different from arrangement information for each of picture regions, the control file being used for controlling distribution of the image encoded data; and
an image processing section configured to select a stream of the image encoded data on a basis of the region-related information included in the control file acquired by the file acquiring section.
13 . The information processing apparatus according to claim 12 , wherein
the entire picture includes an omnidirectional video.
14 . The information processing apparatus according to claim 12 , wherein
the region-related information is included in the control file as information for each of the sub-pictures.
15 . The information processing apparatus according to claim 14 , wherein
the control file includes an MPD (Media Presentation Description) file,
the image encoded data for each of the sub-pictures is managed for each adaptation set,
the arrangement information for each of the picture regions is stored in a Region-wise packing descriptor, and
the region-related information is defined in Supplemental Property or Essential Property in the MPD file.
16 . The information processing apparatus according to claim 12 , wherein
the control file further includes stereo information including information related to stereo display of an adaptation set.
17 . The information processing apparatus according to claim 16 , wherein
the entire picture includes an omnidirectional video.
18 . The information processing apparatus according to claim 12 , wherein
the control file further includes view information indicating a view type of the sub-picture.
19 . The information processing apparatus according to any-ene-ef claim 18 , wherein
the control file further includes information indicating whether an adaptation set is stereo-displayable.
20 . An information processing method comprising:
acquiring a control file managing image encoded data for each of a plurality of sub-pictures into which an entire picture is divided and which is then encoded and including region-related information related to a region in the entire picture corresponding to the sub-picture, as information different from arrangement information for each of picture regions, the control file being used for controlling distribution of the image encoded data; and
selecting a stream of the image encoded data on a basis of the region-related information included in the control file acquired.