FIELD: physics.
SUBSTANCE: invention relates to video encoding and decoding. Technical result is provided by receiving, by a video decoder, a video bitstream containing a picture and loop_filter_across_subpic_enabled_flag, wherein the picture contains a sub-picture; and applying the deblocking filter process to all the edges of the sub-block and the edges of the picture conversion unit, except for edges that coincide with the boundaries of the sub-picture, when loop_filter_across_subpic_enabled_flag is equal to 0.
EFFECT: reduction of blockiness artefacts at the border, common for two adjacent subpages, when these pictures have different flag values loop_filter_across_subpic_enabled_flag[i].
18 cl, 12 dwg
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