While "UserHEVC" appears to be a niche or community-driven repackaging of the High Efficiency Video Coding (HEVC) standard, it is fundamentally built upon the
: Software encoding (like x265) is generally slower than H.264 encoding because of the complex math required for higher efficiency.
Standard hardware encoders use a "greedy" approach, looking only 1-2 frames ahead. UserHEVC implements a dynamic . By analyzing the scene transition in advance, UserHEVC distributes bits more intelligently.