METHODS AND EQUIPMENT FOR CREATING VIDEO AND COMPUTER-READABLE RECORDS

Abstract

The invention relates to a method of generating tnS performed by a decoding or decoding device, which includes steps to obtain a bit stream, the bit stream including a transformation unit syntax (in the example, the transformation unit syntax element may be encoded for the entire block or for several sub-transform units obtained by sub-block transformations (OBT) for the block, or to satisfy the maximum transformation unit size limits); the syntax includes at least two cbf flags for the chromatic blocks (in the example, the transformation unit syntax corresponding to the transformation unit or sub-transform units which includes two chromatic cbf flags: tu_cbf_cb and tu_cbf_cb - one flag for each chromatic plane), the chromatic cbf flags specifying whether the particular block has a remainder in the corresponding chromatic plane;The value of the brightness cbf flag tu_cbf_Iuma is derived from one or any combination of the values ​​of the cu_cbf flag, the values ​​of the two cbfs chroma flags corresponding to the current or sub-conversion unit, the position of the sub-conversion unit within the current conversion unit, and the values ​​of the brightness and chroma cbf flags corresponding to the previous sub-conversion units within the current conversion unit.