INVERSE QUANTIZATION INVERSE TRANSFORMATION METHOD, DEVICE AND MEDIUM

Provided by the present disclosure are an inverse quantization inverse transformation method, device and medium, the method comprising: performing inverse quantization processing on input data according to inverse quantization characteristics of different encoding and decoding standards; determining whether to carry out second inverse transformation processing according to encoding and decoding standards for the input data; when determined that the second inverse transformation processing is needed, performing the second inverse transformation processing on data obtained from the inverse quantization processing, performing first one-dimensional inverse transformation control processing on data obtained from the second inverse transformation processing, and performing second one-dimensional inverse transformation control processing on data obtained from the first one-dimensional inverse transformation control processing; and when determined that the second inverse transformation processing is not needed, perfo