Parameter Set Maintenance in Video Coding
Systems and methods for decoding include receiving a parameter set NAL unit including a reference ID and at least one flag f(n); for all n, if the at least one flag f(n) is not set, maintaining the values v(n) of a parameter set having the same reference ID, and if the at least one flag f(n) is set, replacing the values v(n) of the parameter set having the same reference ID with the values v(n) of the received parameter set NAL unit.
1 . A method of decoding, comprising:
receiving a parameter set NAL unit including a reference ID and at least one flag f(n),
for all n, where n is the number of values in a parameter set:
if the at least one flag f(n) is not set, maintaining the values v(n) of a parameter set having the same reference ID, and
if the at least one flag f(n) is set, replacing the values v(n) of the parameter set having the same reference ID with the values v(n) of the received parameter set NAL unit.
2 . The method of claim 1 , wherein the at least one flag f(n) is represented as a Boolean value.
3 . The method of claim 1 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for f(n) within the group are represented by an integer.
4 . The method of claim 2 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for f(n) within the group are represented by an integer.
5 . The method of claim 1 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
6 . The method of claim 2 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
7 . The method of claim 3 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
8 . A system for decoding, comprising:
a decoder configured to:
receive a parameter set NAL unit including a reference ID and at least one flag f(n), and decode the received parameter set NAL unit;
for all n, where n is the number of values in a parameter set:
if the at least one flag f(n) is not set, maintain the values v(n) of a parameter set having the same reference ID, and
if the at least one flag f(n) is set, replace the values v(n) of the parameter set having the same reference ID with the values v(n) of the received parameter set NAL unit.
9 . The system of claim 8 , wherein the at least one flag f(n) is represented as a Boolean value.
10 . The system of claim 8 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for f(n) within the group are represented by an integer.
11 . The system of claim 9 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for f(n) within the group are represented by an integer.
12 . The system of claim 8 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
13 . The system of claim 9 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
14 . The system of claim 10 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
15 . A non-transitory computer readable medium comprising a set of instructions to direct a processor to:
receive a parameter set NAL unit including a reference ID and at least one flag f(n),
for all n, where n is the number of values in a parameter set:
if the at least one flag f(n) is not set, maintain the values v(n) of a parameter set having the same reference ID, and
if the at least one flag f(n) is set, replace the values v(n) of the parameter set having the same reference ID with the values v(n) of the received parameter set NAL unit.
16 . The computer readable medium of claim 15 , wherein the at least one flag f(n) is represented as a Boolean value.
17 . The computer readable medium of claim 15 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for f(n) within the group are represented by an integer.
18 . The computer readable medium of claim 16 , wherein the received parameter set NAL unit includes at least two flags f(n), the flags being grouped, and the values for An) within the group are represented by an integer.
19 . The computer readable medium of claim 15 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.
20 . The computer readable medium of claim 16 , wherein the parameter set NAL unit contains a plurality of parameter set IDs.