Method for encoding videos sharing sao parameter according to color component

The procedure for adjusting the pattern of adaptive offset (SAO), and The procedure includes: obtaining a slice of the SAO parameters versus the current slice from segment headers from the received bit stream; getting their SAO luminance information about using for luminance components of the current slice and SAO information chrominance on usage for chrominance components between segments SAO parameters; determining whether to perform SAO operation on components luminance of the current section based on the obtained information about using SAO luminance; determining whether to perform SAO operation on components chrominance of the current department based on the information obtained about using SAO chrominance, where the chrominance components contain Cr components and Cb components; when the SAO operation is performed on the luminance components of the current section based on the obtained information about the use of SAO luminance and the SAO operation is performed on the chrominance components of the current department based on the information obtained about the use of SAO chrominance, obtaining the left information of the SAO connection t current block joining between blocks that are included in the current block by performing entropy decoding the bitstream using the first context mode; when the left information of the SAO join indicates that the parameters are SAO of the current block determined by the parameters of the SAO of the left block, determining the parameters of the SAO luminance components of the current block in order to be identical to the SAO parameters of the luminance components of the left block, and the parameters of the SAO chrominance components of the current block as would be identical to the SAO parameters of the chrominance components of the left block; when the left SAO connection information indicates that the SAO parameters of the current block are not determined according to the SAO parameters of the left block, obtaining the above information SAO merge of the current block by executing entropy decoding on the bitstream using the first context way; and when the above SAO merge information shows that the SAO parameters are of the current block determined according to the SAO parameters of the upper block, determining the parameters of the SAO luminance components of the current block in order to be identical to the SAO parameters of the luminance components of the upper one block, and the parameters of the SAO chrominance components of the current block as would be identical to the parameters of the SAO chrominance components of the upper block; when the above SAO merge information shows that the SAO parameters of the current block are not determined by the SAO parameters of the upper block, obtaining the SAO parameters of the current block from the bitstream; and performing SAO operation by adjusting sample values luminance components of the current block using SAO parameters luminance components of the current block, and sample values chrominance components of the current block using SAO parameters of the chrominance components of the current block, characterized by: obtaining the SAO parameters of the current block from the stream bits includes: obtaining information about the SAO type of the current block from the bitstream; when the SAO type information refers to the belt type or to the edge type, getting the absolute offset value of the current block by passing entropy decoding on the bitstream in bypass mode without context modeling; and when the information about the SAO type refers to the type of belt and the absolute offset value is not 0, getting information about the offset character of the current block from the bitstream, the offset sign information indicates whether the offset value is positive or negative, and when the information type SAO refers to the edge type, the shift sign information is not obtained from the bit stream. The patent contains 1 more pat. request.