Video decoder with reduced dynamic range transform with inverse transform shifting memory

A video encoding method comprising:

• dividing video data into one or more blocks of video, each block of video representing a plurality of pixels;
• encoding the one or more blocks of video, the encoding comprises generating a set of quantized coefficients for each block of video;
• and
• transmitting sets of quantized coefficients corresponding to the one or more blocks of video in a bitstream to a decoder,
• wherein the decoder is configured to decode the video data by performing operations comprising:
• descaling the quantized coefficients by multiplying the quantized coefficients with numbers dependent on a coefficient index and a transform size of the block to generate descaled coefficients;
• applying an adjustment to the descaled coefficients to generate adjusted descaled coefficients, wherein the adjustment is a variable based on the transform size;
• clipping the adjusted descaled coefficients to a predetermined bit depth to generate clipped coefficients;
• and
• inverse transforming the clipped coefficients to output a decoded residue.