METHODS, APPARATUSES AND COMPUTER PROGRAMS FOR VIDEO CODING
There is disclosed apparatuses, methods and computer programs for video coding. One or more subsets of a set of operations is determined; an operation among the operations within said subset of operations is selected; and an indication on the subset and on the selected operation is provided at the encoding. The decoding comprises determining one or more subsets of a set of operations; receiving a subset indication indicative of a selected subset among said one or more subsets and for receiving an operation indication indicative of an operation selected among operations within said selected subset; and selecting an operation on the basis of said operation indication.
1 . An apparatus comprising:
one or more subsets of a set of operations;
a selector configured for selecting an operation among the operations within said subset of operations; and
an indication constructor configured for providing an indication on the subset and on the selected operation.
2 . The apparatus according to claim 1 , wherein each subset includes a different number of operations, wherein said indication constructor is configured for providing the number of operations included in the subset as said indication on the subset.
3 . The apparatus according to claim 1 , wherein the indication constructor is configured for using a codeword of the alphabet assigned to the selected subset as said indication on the selected operation.
4 . The apparatus according to claim 1 , wherein the set of operations comprises a set of different prediction modes.
5 . The apparatus according to claim 4 , wherein at least one prediction mode represents an intra prediction directionality.
6 . The apparatus according to claim 1 , wherein the set of operations comprises a set of different transform types.
7 . A method comprising:
determining one or more subsets of a set of operations;
selecting an operation among the operations within said subset of operations; and
providing an indication on the subset and on the selected operation.
8 . The method according to claim 7 , wherein each subset includes a different number of operations, wherein the method comprises providing the number of operations included in the subset as said indication on the subset.
9 . The method according to claim 7 further comprising assigning an alphabet of codewords for each subset, and using a codeword of the alphabet assigned to the selected subset as said indication on the selected operation.
10 . The method according to claim 7 , wherein the set of operations comprises a set of different prediction modes.
11 . The method according to claim 8 , wherein at least one prediction mode represents an intra prediction directionality.
12 . The method according to claim 7 , wherein the set of operations comprises a set of different transform types.
13 . A computer readable storage medium stored with code thereon for use by an apparatus, which when executed by a processor, causes the apparatus to perform:
determining one or more subsets of a set of operations;
selecting an operation among the operations within said subset of operations; and
providing an indication on the subset and on the selected operation.
14 . The computer readable storage medium according to claim 13 , wherein when said code is executed by the processor, it further causes the apparatus to assign an alphabet of codewords for each subset, and to use a codeword of the alphabet assigned to the selected subset as said indication on the selected operation.
15 . An apparatus comprising:
one or more subsets of a set of operations;
an input for receiving a subset indication indicative of a selected subset among said one or more subsets and for receiving an operation indication indicative of an operation selected among operations within said selected subset; and
a selector for selecting an operation on the basis of said operation indication.
16 . The apparatus according to claim 15 , wherein each subset includes a different number of operations, wherein said selector is configured for using the number of operations included in the subset to select said operation.
17 . The apparatus according to claim 15 further comprising an alphabet of codewords assigned for each subset, wherein said selector is configured for using a received codeword and the alphabet assigned to the selected subset to select said operation.
18 . The apparatus according to claim 15 , wherein the set of operations comprises a set of different prediction modes.
19 . The method according to claim 18 , wherein at least one prediction mode represents an intra prediction directionality.
20 . The apparatus according to claim 15 , wherein the set of operations comprises a set of different transform types.
21 . A method comprising:
determining one or more subsets of a set of operations;
receiving a subset indication indicative of a selected subset among said one or more subsets and for receiving an operation indication indicative of an operation selected among operations within said selected subset; and
selecting an operation on the basis of said operation indication.
22 . The method according to claim 21 , wherein each subset includes a different number of operations, wherein the method comprises using the number of operations included in the subset as said indication on the subset.
23 . The method according to claim 21 further comprising assigning an alphabet of codewords for each subset, and using a received codeword and the alphabet assigned to the selected subset to select said operation.
24 . The method according to claim 21 , wherein the set of operations comprises a set of different prediction modes.
25 . The method according to claim 24 , wherein at least one prediction mode represents an intra prediction directionality.
26 . The method according to claim 21 , wherein the set of operations comprises a set of different transform types.
27 . A computer readable storage medium stored with code thereon for use by an apparatus, which when executed by a processor, causes the apparatus to perform:
determining one or more subsets of a set of operations;
receiving a subset indication indicative of a selected subset among said one or more subsets and for receiving an operation indication indicative of an operation selected among operations within said selected subset; and
selecting an operation on the basis of said operation indication.