contrib: aom: update to 3.3.0

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