Lightweight Hardware Implementation Of Vvc Transform Block For Asic Decoder

Versatile Video Coding (VVC) is the next generation video coding standard expected by the end of 2020. Compared to its predecessor, VVC introduces new coding tools and techniques to make compression more ef?cient at the expense of higher computational complexity. This rises a need to design an ef?cient and optimised implementation especially for embedded platforms with limited memory and logic resources. One of the newly introduced tools in VVC is the Multiple Transform Selection (MTS). This latter involves three Discrete Cosine Transform (DCT)/Discrete Sine Transform (DST) types with larger and rectangular transform blocks. In this paper, an ef?cient hardware implementation for all DCT/DST transform types and sizes is proposed. The proposed design uses 32 multipliers in a pipelined architecture and targets an ASIC platform. It consists in a multi-standard architecture that supports the transform block of recent MPEG standards including AVC, HEVC and VVC. The synthesized results show that the proposed method which sustain a constant throughput of two pixels/cycle and constant latency for all block sizes, can reach an operational frequency of 600 Mhz enabling to decode in real-time 4K videos at 48 fps.