Device and method for encoding video data using maximum bit-depth constraint information
A method of encoding video data performed by an electronic device is provided. The method receives the video data. The method further determines, for general constraints information of the video data, a maximum constraint indication used for determining a maximum value of a parameter included in a sequence parameter set (SPS) for the video data. The maximum constraint indication does not impose a constraint on the maximum value of the parameter when the maximum constraint indication is equal to zero.
1 . A method of encoding video data by an electronic device, the method comprising:
receiving the video data; and
determining, for general constraints information of the video data, a maximum constraint indicator used for determining a maximum value of a parameter included in a sequence parameter set (SPS) for the video data, wherein the maximum constraint indicator does not impose a constraint on the maximum value of the parameter when the maximum constraint indicator is equal to zero.
2 . The method according to claim 1 , wherein the parameter in the SPS comprises a bit-depth parameter sps_bitdepth_minus8 when the maximum constraint indicator is a maximum bit-depth constraint indicator.
3 . The method according to claim 2 , wherein a value of the maximum bit-depth constraint indicator is in a range of zero to eight.
4 . The method according to claim 1 , wherein the parameter in the SPS comprises a chroma format parameter sps_chroma_format_idc when the maximum constraint indicator is a maximum chroma format constraint indicator.
5 . The method according to claim 4 , wherein a value of the maximum chroma format constraint indicator is in a range of zero to two.
6 . The method according to claim 1 , wherein the maximum value of the parameter is calculated based on the maximum constraint indicator and a constant value when the maximum constraint indicator is greater than zero.
7 . The method according to claim 6 , wherein the maximum value of the parameter is calculated by subtracting the constant value from the maximum constraint indicator when the maximum constraint indicator is greater than zero.
8 . An electronic device for encoding video data, the electronic device comprising:
at least one processor; and
at least one non-transitory computer-readable medium coupled to the at least one processor and storing one or more computer-executable instructions that, when executed by the at least one processor, cause the electronic device to:
receive the video data; and
determine, for general constraints information of the video data, a maximum constraint indicator used for determining a maximum value of a parameter included in a sequence parameter set (SPS) for the video data, wherein the maximum constraint indicator does not impose a constraint on the maximum value of the parameter when the maximum constraint indicator is equal to zero.
9 . The electronic device according to claim 8 , wherein the parameter in the SPS comprises a bit-depth parameter sps_bitdepth_minus8 when the maximum constraint indicator is a maximum bit-depth constraint indicator.
10 . The electronic device according to claim 9 , wherein a value of the maximum bit-depth constraint indicator is in a range of zero to eight.
11 . The electronic device according to claim 8 , wherein the parameter in the SPS comprises a chroma format parameter sps_chroma_format_idc when the maximum constraint indicator is a maximum chroma format constraint indicator.
12 . The electronic device according to claim 11 , wherein a value of the maximum chroma format constraint indicator is in a range of zero to two.
13 . The electronic device according to claim 8 , wherein the maximum value of the parameter is calculated based on the maximum constraint indicator and a constant value when the maximum constraint indicator is greater than zero.
14 . The electronic device according to claim 13 , wherein the maximum value of the parameter is calculated by subtracting the constant value from the maximum constraint indicator when the maximum constraint indicator is greater than zero.
15 . A method of encoding video data by an electronic device, the method comprising:
receiving the video data;
determining a parameter to be encoded into a sequence parameter set (SPS) of a bitstream, the parameter indicating a picture parameter of a plurality of image frames in a video sequence of the video data; and
determining a maximum constraint indicator to be encoded into general constraints information of the bitstream, wherein the maximum constraint indicator does not impose a constraint on the parameter when the maximum constraint indicator is equal to zero.
16 . The method according to claim 15 , wherein a maximum value of the parameter is determined based on the maximum constraint indicator when the maximum constraint indicator is greater than zero.