FIELD: physics.
SUBSTANCE: invention relates to video encoding and decoding means. Plurality of sublayer representations are encoded into a bitstream. Parameters of a hypothetical reference decoder (HRD) and a flag of coded picture buffer (CPB) parameters of a sublayer (sublayer_cpb_params_present_flag) are encoded with the help of a processor. Sublayer representation is a subset of a bit stream containing NAL units of a specific sublayer and lower sublayers. Conducting, using a processor, that the HRD parameters for all representations of sublayers with temporary identifiers (TemporalIds) are less than the maximum TemporalId, are equal to HRD parameters for maximum sublayer representation with maximum TemporalId when sublayer_cpb_params_present_flag is set equal to zero.
EFFECT: high efficiency of video encoding.
20 cl, 12 dwg
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