https://aomedia.googlesource.com/aom/+/refs/tags/v3.2.0/CHANGELOG --- This release includes compression efficiency and perceptual quality improvements, speedup and memory optimizations, as well as some new features. - New Features * Introduced speeds 7, 8, and 9 for all intra mode. * Introduced speed 10 for real time mode. * Introduced an API that allows external partition decisions. * SVC: added support for compound prediction. * SVC: added support for fixed SVC modes. - Compression Efficiency Improvements * Intra-mode search improvement. * Improved real time (RT) mode BDrate savings by ~5% (RT speed 5) and ~12% (RT speed 6). The improvement was measured on the video conference set. * Improved real time mode for nonrd path (speed 7, 8, 9): BDrate gains of ~3-5%. * Rate control and RD adjustments based on ML research in VP9. Gains of ~0.5-1.0% for HD. - Perceptual Quality Improvements * Added a new mode --deltaq-mode=3 to improve perceptual quality based on a differential contrast model for still images. * Added a new mode –deltaq-mode=4 to improve perceptual quality based on user rated cq_level data set for still images. * Weighting of some intra mode and partition size choices to better manage and retain texture. - Speedup and Memory Optimizations * Further improved 2-pass good quality encoder speed: o Speed 2 speedup: 18% o Speed 3 speedup: 22% o Speed 4 speedup: 37% o Speed 5 speedup: 30% o Speed 6 speedup: 20% * Optimized the real time encoder (measured on the video conference set): o RT speed 5 speedup: 110% o RT speed 6 speedup: 77% - Bug Fixes * Issue 3069: Fix one-pass mode keyframe placement off-by-one error. * Issue 3156: Fix a bug in av1_quantize_lp AVX2 optimization. --- I quickly re-packed .tar.gz into xz and renamed libaom patches accordingly. It seems to work with ffmpeg-4.4. Phyllis, can you test (may be next month?) if libaom-3.2.0 still works on both new and old distros (as you use them for appimage build)? Also, ffmpeg 4.4.1 was released - mostly bugfixes from fuzzers, it seems, but also few changes in util https://git.ffmpeg.org/gitweb/ffmpeg.git/blob/7e0d640edf6c3eee1816b105c2f749... https://git.ffmpeg.org/gitweb/ffmpeg.git/tag/2aa4f5cc8be5e3168191cd13a61178a...