Enhanced video decoder using tile-to-raster reordering

An apparatus for processing video data, comprising:

• at least one memory;
• at least one processor coupled to the at least one memory, the at least one processor being configured to:
• obtain first encoded data for a first portion of an image, wherein the image is encoded in a plurality of independently decodable portions;
• generate first intermediate data for the first portion of the image, wherein the first intermediate data includes first syntax information that is separate from the first encoded data;
• store the first intermediate data in the at least one memory in a bitstream order;
• obtain second encoded data for a second portion of the image;
• generate second intermediate data for the second portion of the image, wherein the second intermediate data includes second syntax information that is separate from the second encoded data;
• store the second intermediate data in the at least one memory in the bitstream order, wherein the first intermediate data is stored separate from the second intermediate data;
• generate control data indicating an access order for accessing the first intermediate data and the second intermediate data from the at least one memory in a raster scan order across the first portion of the image and the second portion of the image;
• and
• store the control data in the at least one memory;
• and
• a plurality of processing pipelines coupled to the at least one processor and the at least one memory, the plurality of processing pipelines configured to process, based on the control data, the first encoded data using the first intermediate data and to process the second encoded data using the second intermediate data in the raster scan order across the first portion of the image and the second portion of the image to generate a part of the image.