FIELD: video coding and decoding.
SUBSTANCE: video decoding device is proposed, including: a receiving circuit and a processing circuit that decodes prediction information for a block in an I-slice from an encoded video bitstream and determines whether an intra-block copy (IBC) mode is possible for a block in an I-slice. In response to a slice type parameter indicating an I slice and at least a block width or height greater than 64, the processing circuit sets the current mode type parameter to MODE_TYPE_INTRA. In addition, in an embodiment, the processing circuit decodes a flag that indicates whether a skip mode has been applied to a block from the encoded video bitstream. The processing circuit then reconstructs the block at least in part based on the flag.
EFFECT: increasing the coding efficiency and speed.
14 cl, 20 dwg
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