GSoC 2025 Final Report: RVV Optimization for the dav1d AV1 Decoder

Project Overview and Goals dav1d 1 is an open-source AV1 video decoder that aims for the highest possible performance. The primary goal of this GSoC project was to optimize dav1d 's core video processing functions by implementing hand-written assembly using the RISC-V Vector (RVV) Extension . The objective was to maximize performance to enable smooth playback of high-definition AV1 video on…