libaom-3.8.0

[Douglas R. Reno]

New minor version

[Rahul Chandra]

Do we have a currency issue? This was released on Nov. 30th

Changelog:
  This release includes new codec interfaces, compression efficiency and
  perceptual improvements, speedup and memory optimizations and many bug
  fixes. This release is ABI compatible with the last release.

  - New Features
    * New codec controls:
      * AV1E_SET_MAX_CONSEC_FRAME_DROP_CBR: Set the maximum number of
        consecutive frame drops allowed for the frame dropper in 1 pass
        CBR mode.
    * Run-time CPU feature detection for all Arm platforms:
      CRC, DotProd, I8MM and SVE CPU feature presence is detected at run
      time and code paths making use of these features are selected
      dynamically. These code paths provide meaningful performance gains
      for standard bitdepth RTC and VoD encoding: up to 10% and 20%
      respectively, over the Armv8.0-A baseline build.
    * RTC: Frame-dropper support added to the rate control library.
    * RTC Rate control improvements for low bitrate and for SVC.

  - Compression Efficiency Improvements
    * Improved accuracy of cost estimation for loop restoration and
      global motion.
    * Improved selection of loop restoration unit size - full search up
      to (non-realtime) speed 2, retuned static selection at higher
      speeds.
    * RTC Screen content mode: 3-5% bdrate gains across speeds 7 - 10.
    * Good-quality mode: 0.2 - 0.5% bdrate gains across speeds 1 - 4.

  - Perceptual Quality Improvements
    * RTC Screen: Improved visual quality for scrolling.
    * RTC: Improved color quality for both screen and video mode.

  - Speedup and Memory Optimizations
    * Good-quality, single-thread encoder speedups:
      o 15% improvement for speed 5.
      o 12% improvement for speed 6.
    * Arm standard bitdepth VoD (--good):
      o 8% speedup for speeds 0 and 1.
      o 20% speedup for speed 2.
      o 27% speedup for speed 3.
      o 30% speedup for speed 4.
      o 38% speedup for speeds 5 and 6.
    * Arm high bitdepth VoD (--good):
      o 206% speedup for speeds 0 and 1.
      o 180% speedup for speed 2.
      o 51% speedup for speeds 3 and 4.
      o 68% speedup for speed 5.
      o 72% speedup for speed 6.
    * RTC Screen content: 2-6% speedup across speeds 7-10.
    * RTC: 2-3% speedup for temporal layers.
    * RTC: Speedups to reference scaling in nonrd pickmode.
    * Good-quality mode: Simplified global motion estimation, saving
      ~1200 lines of code and 1KB of tables while improving quality.

  - Bug Fixes
    * Fixes to improve libaom stability in case of memory allocation
      failures.
    * Fixes to SIMD functions (x86 AVX2/SSE2 and ARM Neon).
    * b/310457427, b/310766628: Bug fixes to only use rec_sse in CBR
      mode.

2023-11-17 v3.7.1
  This release includes several bug fixes. This release is ABI
  compatible with the last release. See
  https://aomedia.googlesource.com/aom/+log/v3.7.0..v3.7.1 for all the
  commits in this release.

  - Bug Fixes
    * aomedia:3349: heap overflow when increasing resolution
    * aomedia:3478: GCC 12.2.0 emits a -Wstringop-overflow warning on
      aom/av1/encoder/motion_search_facade.c
    * aomedia:3489: Detect encoder and image high bit depth mismatch
    * aomedia:3491: heap-buffer-overflow on frame size change
    * b/303023614:  Segfault at encoding time for high bit depth images

[Rahul Chandra]

All tests seem to have passed, got 9938 tests passed. The SBU time can stay as it is, it's already the longest in the whole book.

[Rahul Chandra]

Fixed @ 
9732e2550c29787ec13da61d7a02ad195bfc34be - Update to libaom-3.8.0
63a2e8380a88664050e0beedcc1efdb6c9e664fe - Update to cmake-3.28.0