MPEGAV1

MPEGAV1 is a term that sometimes appears in discussions about video codecs to indicate the AV1 format within the MPEG/ISO standardization framework. There is no widely used official ISO/IEC standard named MPEGAV1; the established name for the codec is AV1, originally developed by the Alliance for Open Media (AOMedia). When encountered, MPEGAV1 usually refers to AV1 in contexts involving ISO/MPEG standardization processes.

AV1 is an open, royalty-free video coding format designed to provide high compression efficiency for a variety of applications, from streaming to broadcast. It was developed by AOMedia with contributions from multiple companies and organizations and released in 2018. The format aims to surpass previous codecs such as VP9 and H.265/HEVC in terms of bitrate efficiency while remaining free of licensing fees.

Technically, AV1 offers a broad set of tools, including flexible partitioning, multiple transform sizes, advanced intra and inter prediction, improved entropy coding, and post-processing features like loop restoration and film grain synthesis. It is designed to scale from low-power devices to high-resolution production environments and supports color depths up to 12-bit and high dynamic range.

Adoption has grown across browsers, streaming services, and hardware platforms, with major web browsers implementing AV1 decoding and several platforms offering hardware acceleration. Its royalty-free licensing model and ongoing development have helped it become a leading option for next-generation video delivery.

If you encounter the term MPEGAV1, it generally refers to AV1 in an ISO/MPEG standardization context, rather than a distinct, separately published MPEG specification.