Optimizing an Open VVC Encoder for Low Delay Remote Desktop Applications

Remote desktop applications (RDA) and associated low delay streaming are becoming more important with virtual meetings and processing power in the cloud. Leveraging the Versatile Video Coding (VVC) standard, this paper evaluates and optimizes low-delay screen content coding for RDAs using the open VVC encoder VVenC. First, encoder configuration optimizations are investigated, including hierarchical quantization parameter cascading and motion-compensated temporal pre-filtering. Second, an application is introduced to identify dynamic regions in the desktop frame, facilitating guided fast encoder search optimizations. Experimental results demonstrate that the configuration optimizations and the fast search based on the dynamic regions information achieve notable improvements in coding efficiency (bit-rate reduction of 9.5% for PSNR and 11% for VMAF) and encoding time savings of 31 % for VVenC.