CPC G06V 20/46 (2022.01) [G06T 7/12 (2017.01); G06V 20/49 (2022.01); H04N 19/59 (2014.11)] | 13 Claims |
1. A non-transitory digital storage medium storing a video data stream comprising
a sequence of slice portions, each slice portion having encoded thereinto a respective slice of a plurality of slices of a picture of a video, wherein each slice portion comprises a slice address indicating a location where, in a picture area of the video, the slice is located which the respective slice portion has encoded thereinto;
extraction information for usage in an extraction of a reduced video data stream from the video data stream, the reduced video data stream having encoded thereinto a spatially smaller video corresponding to a spatial section of the video of the video data stream, the extraction involving confining the video data stream to slice portions having encoded thereinto any slice within the spatial section and amending the slice address so as to relate to a decreased picture area of the spatially smaller video, the extraction information comprising
a first information defining the spatial section within the picture area;
a second information explicitly signalling substitute slice addresses for a replacement of the slice addresses of the slice portions of the slices within the spatial section, the substitute slice addresses indicating, within the reduced video data stream, the location where, in the decreased picture area, the slices are located, and
a third information indicating whether the slice portions of slices within the spatial section are to be re-ordered in extracting the reduced video data stream from the video data stream relative to how the slice portions are ordered in the sequence of slice portions of the video data stream.
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