FIELD: physics.
SUBSTANCE: method for decoding video data in which a lossless encoding syntax element for the current video data block is received. The lossless encoding syntax element indicates that the current video data block is encoded using a lossless encoding mode. Herewith the lossless syntactic element is separate from the quantization parameter values (QP); it is determined that the current video data block is a current quantized block based on the size of the current video data block; a zero value of the delta-quantization parameter (dQP) is assigned for the current quantized block. The dQP value is a difference between the QP value and the QP predictor value; the value of the QP for the current quantized block based on the assigned dQP value and the QP predictor is determined; and the current quantized block is decoded in accordance with the lossless encoding mode and a certain QP value.
EFFECT: possibility to avoid potential mismatches of the encoder, decoder.
20 cl, 9 dwg
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