| CPC H04N 19/105 (2014.11) [H04N 19/137 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] | 4 Claims |
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1. A video decoding method performed by a video decoding apparatus, the method comprising:
obtaining a bitstream;
parsing a flag related to weighted prediction from the bitstream;
parsing a prediction weighted table syntax from the bitstream based on the flag; and
deriving prediction samples based on the prediction weighted table syntax,
wherein the prediction weighted table syntax is related to luma and chroma weighting factors for the weighted prediction,
wherein the flag related to the weighted prediction is signaled in a picture header or a picture parameter set level, and the flag related to the weighted prediction represents whether the prediction weighted table syntax is present in the picture header or a slice header,
wherein the prediction weighted table syntax is parsed from the picture header of the bitstream based on a value of the flag being 1, and
wherein the prediction weighted table syntax is parsed from the slice header of the bitstream based on the value of the flag being 0.
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