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contrib: aom: update to 3.3.0

Tristan Matthews requested to merge tmatth/vlc:3.0.x-backport/aom-3.3.0 into 3.0.x

2022-01-28 v3.3.0 This release includes compression efficiency and perceptual quality improvements, speedup and memory optimizations, some new features, and several bug fixes.

  • New Features
    • AV1 RT: Introducing CDEF search level 5
    • Changed real time speed 4 to behave the same as real time speed 5
    • Add --deltaq-strength
    • rtc: Allow scene-change and overshoot detection for svc
    • rtc: Intra-only frame for svc
    • AV1 RT: Option 2 for codec control AV1E_SET_ENABLE_CDEF to disable CDEF on non-ref frames
    • New codec controls AV1E_SET_LOOPFILTER_CONTROL and AOME_GET_LOOPFILTER_LEVEL
    • Improvements to three pass encoding
  • Compression Efficiency Improvements
    • Overall compression gains: 0.6%
  • Perceptual Quality Improvements
    • Improves the perceptual quality of high QP encoding for delta-q mode 4
    • Auto select noise synthesis level for all intra
  • Speedup and Memory Optimizations
    • Added many SSE2 optimizations.
    • Good quality 2-pass encoder speedups: o Speed 2: 9% o Speed 3: 12.5% o Speed 4: 8% o Speed 5: 3% o Speed 6: 4%
    • Real time mode encoder speedups: o Speed 5: 2.6% BDRate gain, 4% speedup o Speed 6: 3.5% BDRate gain, 4% speedup o Speed 9: 1% BDRate gain, 3% speedup o Speed 10: 3% BDRate gain, neutral speedup
    • All intra encoding speedups (AVIF): o Single thread - speed 6: 8% o Single thread - speed 9: 15% o Multi thread(8) - speed 6: 14% o Multi thread(8) - speed 9: 34%
  • Bug Fixes
    • Issue 3163: Segmentation fault when using --enable-keyframe-filtering=2
    • Issue 2436: Integer overflow in av1_warp_affine_c()
    • Issue 3226: armv7 build failure due to gcc-11
    • Issue 3195: Bug report on libaom (AddressSanitizer: heap-buffer-overflow)
    • Issue 3191: Bug report on libaom (AddressSanitizer: SEGV on unknown address)
    • Issue 3176: Some SSE2/SADx4AvgTest.* tests fail on Windows
    • Issue 3175: Some SSE2/SADSkipTest.* tests fail on Windows

Source: https://aomedia.googlesource.com/aom/+/refs/tags/v3.3.0/CHANGELOG

(cherry picked from commit 0857947a)

Signed-off-by: Tristan Matthews tmatth@videolan.org

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