Data processing for immersive media

A data processing method for an immersive media, comprising:

• partitioning an immersive media into a plurality of segmented videos;
• encapsulating the plurality of segmented videos into respective tracks in a same track group, a segmented video of the plurality of segmented videos corresponding to an independently coded region;
• and
• generating, by processing circuitry, independently coded region description information of the independently coded region according to the encapsulation of the segmented video, the independently coded region description information including independently coded region information and coordinate information, the coordinate information including coordinate system identification information that indicates a coordinate system of the independently coded region, wherein
• the independently coded region information includes a track priority information flag of the independently coded region;
• when priorities of independently coded regions in all tracks in the track group of the independently coded region are the same, the track priority information flag is an invalid value;
• when the priorities of the independently coded regions in all the tracks in the track group of the independently coded region are different, the track priority information flag is a valid value;
• and
• when the track priority information flag is the valid value, the independently coded region information further includes track priority information of the independently coded region.

A data processing apparatus, comprising:

• processing circuitry configured to:
• acquire independently coded region description information of an independently coded region of an immersive media, the independently coded region corresponding to a segmented video of a plurality of segmented videos encapsulated in tracks of a same track group, the independently coded region description information including an independently coded region information and coordinate information, the coordinate information including coordinate system identification information that indicates a coordinate system of the independently coded region;
• and
• output for display the segmented video of the immersive media according to the independently coded region description information, wherein
• the independently coded region information includes a track priority information flag of the independently coded region;
• when the track priority information flag is an invalid value, priorities of independently coded regions in all tracks in the track group of the independently coded region are the same;
• when the track priority information flag is a valid value, the independently coded region information further includes track priority information of the independently coded region, the track priority information indicating a priority of the independently coded region;
• and
• when a resolution of the independently coded region is higher than a resolution of another independently coded region, the priority of the independently coded region is higher than a priority of the independently coded region.