CPC H04N 21/85406 (2013.01) [H04N 21/234345 (2013.01); H04N 21/8455 (2013.01)] | 16 Claims |
1. A method of generating a data file, wherein the method comprises:
obtaining a derived track comprising at least one derived sample, each derived sample comprising a sequence of derivation operations to be performed on a list of at least one input;
wherein the derived track comprises an entry value having its most significant bit set to 1 for indicating that an input of a derivation operation is the output of one among the previous derivation operations in the sequence, the remaining bits of the entry value corresponding to the index of the derivation operation used as input among the previous derivation operations; and
generating the file comprising the derived track and a reference to the at least one input.
|