Storing and retrieving high bit depth image data

A device for accessing media data, the device comprising:

• a memory configured to store media data;
• and
• one or more processors implemented in circuitry and configured to:
• code a plurality of bit length values for a plurality of block fixed length code length (bflc_len) values for a plurality of blocks of a tile or sub-tile of an image, the bit length values representing numbers of bits used to code the blfc_len values, and the bflc_len values representing numbers of bits used to code codewords representing residual values for pixels of the tile or sub-tile corresponding to the respective blocks;
• code the bflc_len values for each of the plurality of blocks such that the bflc_len values have the numbers of bits indicated by the respective bit length values;
• code the codewords for each of the plurality of blocks such that the codewords have the numbers of bits indicated by the bflc_len values for corresponding blocks of the plurality of blocks;
• and
• access the bit length values, the bflc_len values, and the codewords in the memory.

A computer-readable storage medium comprising instructions that, when executed, cause a processor of a device to:

• code a plurality of bit length values for a plurality of block fixed length code length (bflc_len) values for a plurality of blocks of a tile or sub-tile of an image, the bit length values representing numbers of bits used to code the blfc_len values, and the bflc_len values representing numbers of bits used to code codewords representing residual values for pixels of the tile or sub-tile corresponding to the respective blocks;
• code the bflc_len values for each of the plurality of blocks such that the bflc_len values have the numbers of bits indicated by the respective bit length values;
• code the codewords for each of the plurality of blocks such that the codewords have the numbers of bits indicated by the bflc_len values for corresponding blocks of the plurality of blocks;
• and
• access the bit length values, the bflc_len values, and the codewords in a memory of the device.

A device for accessing media data, the device comprising:

• a memory configured to store media data;
• means for coding a plurality of bit length values for a plurality of block fixed length code length (bflc_len) values for a plurality of blocks of a tile or sub-tile of an image, the bit length values representing numbers of bits used to code the blfc_len values, and the bflc_len values representing numbers of bits used to code codewords representing residual values for pixels of the tile or sub-tile corresponding to the respective blocks;
• means for coding the bflc_len values for each of the plurality of blocks such that the bflc_len values have the numbers of bits indicated by the respective bit length values;
• means for coding the codewords for each of the plurality of blocks such that the codewords have the numbers of bits indicated by the bflc_len values for corresponding blocks of the plurality of blocks;
• and
• means for accessing the bit length values, the bflc_len values, and the codewords in the memory.