AV1 Codec Library libaom v3.2 Brings More Performance Optimizations

Written by Michael Larabel in Multimedia on 15 October 2021 at 08:31 AM EDT. 23 Comments
Libaom 3.2 is now available as the latest version of the official AOMedia/Google-developed AV1 Codec Library. With libaom 3.2 comes compression efficiency improvements, perceptual quality improvements, and a variety of speed-ups and memory optimizations.

The CHANGELOG talks up 2-pass quality encoder speed-ups ranging from 18% to 37% depending upon the speed level, RT speed-ups from 77% to 110%, several percent compression efficiency improvements, and other optimizations.

This AV1 Codec Library v3.2 release is available from aomedia.googlesource.com.

The aom-av1 benchmark test profile has been updated against the v3.2 release. Indeed running some comparison tests of v3.1 to v3.2, there are some improvements on a few Linux boxes tried so far:

But I am also seeing a few performance regressions at least:

I'll have more benchmarks shortly.
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