FIELD: physics.
SUBSTANCE: invention relates to video encoding means. Multiple coefficients of the cross-component adaptive loop filter are decoded. Decoding of a specific filter coefficient from a plurality of filter coefficients comprises decoding from an encoded video bitstream and using a fixed-length code, a syntax element specifying an exponent value which represents base 2 logarithm of the absolute value of the particular filter coefficient, wherein the absolute value is equal to two raised to the power of the exponent value and determining the value of the specific filter coefficient based on the exponent value. Samples of the video data unit are reconstructed. Cross-component adaptive contour filtering is performed based on a plurality of filter coefficients of the video data unit.
EFFECT: higher coding efficiency.
18 cl, 9 dwg
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