AV1 is a royalty-free video coding format developed by the Alliance for Open Media to deliver high compression efficiency for streaming and real-time video. It typically achieves around 30 percent better compression than HEVC/VP9 at equivalent quality, making it well suited to bandwidth-constrained applications such as screen sharing and live video. Being open and licence-free, it is widely adopted across browsers, hardware decoders, and conferencing platforms.
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- AV1 uses advanced tools such as larger block partitioning, improved motion compensation, and a constrained directional enhancement filter to outperform earlier codecs. Encoding is computationally expensive, so real-time use depends on hardware acceleration or tuned software encoders.