High Efficiency Video Coding (HEVC) is a compression algorithm that encodes digital video with the aim of maximizing quality while minimizing file size. This lesson outlines the history of video codec standards, specifically HEVC and transitions into the current trends of online video distribution. From the technical perspective,Professor Timmerer provides an in-depth explanation of the HEVC block diagram and its video encoding algorithm. The process starts with splitting an image in Coding Tree Units (CTUs) or independent regions of pixel blocks, applying intra and inter frame prediction(s), and calculating the GOP structure (along with other aspects of video encoding). Lastly, the performance capabilities of HEVC and AVC are analysed and compared.