Commit 17911616c0 for aom
commit 17911616c0126fa10f2d41c58fc6727762a1de51
Merge: 395efd18d8 92d4c37fbd
Author: Wan-Teh Chang <wtc@google.com>
Date: Thu Apr 2 13:19:45 2026 -0700
Merge tag 'v3.13.3' into main
Release v3.13.3
2026-04-02 v3.13.3
This release includes several bug fixes. This release is ABI
compatible with the last release. See
https://aomedia.googlesource.com/aom/+log/v3.13.2..v3.13.3 for all the
commits in this release.
- Bug Fixes
* Commit 4cc0867f: fix multithreading crashes when loop restoration
filtering is used by the encoder.
* Commit 74aaa1ef: fix AOM_SCALING_MODE crashes when compound mask
prediction modes are used by the encoder.
Bug: 498612990
Change-Id: I60c9a3cef2e0e4e5b7113da1f5052a51fa9ef28b
diff --cc CHANGELOG
index 12f0f4e4d5,354123b596..3e1f97c6fe
--- a/CHANGELOG
+++ b/CHANGELOG
@@@ -1,46 -1,15 +1,58 @@@
+yyyy-mm-dd next version
+ This release is ABI compatible with the last release.
+
+ This release includes significant compression efficiency and perceptual
+ quality improvements for layered image encoding, in addition to bug
+ fixes.
+
+ - New Features
+ * Tuning modes AOM_TUNE_IQ and AOM_TUNE_SSIMULACRA2 now work with
+ inter-frame encoding modes (good-quality and realtime), enabling
+ efficient layered image encoding.
+ * Variance Boost (deltaq-mode 6) support has been extended to
+ include good-quality and realtime modes.
+ * New value 2 for use_fixed_qp_offsets: disallow the application of
+ per-frame QP offsets, enabling full control of each frame's QP, by
+ adjusting rc_cfg.cq_level between each encoded frame.
+
+ - Compression Efficiency Improvements
+ * When encoding 2-layered images with AOM_TUNE_IQ vs. AOM_TUNE_SSIM:
+ - Good-quality mode: up to 15% gains at similar SSIMULACRA 2 scores.
+ - Realtime mode: up to 30% gains at similar SSIMULACRA 2 scores.
+ * Enable screen detection mode 2 (anti-aliased text and graphics aware) in
+ all-intra mode.
+ * Some minor quantization matrix formula and delta chroma q tweaks for the
+ AOM_TUNE_SSIMULACRA2 tuning mode, with up to 0.2% SSIMULACRA 2 score
+ efficiency gains.
+
+ - Perceptual Quality Improvements
+ * AOM_TUNE_IQ improves the visual quality of layered image encoding
+ compared to AOM_TUNE_SSIM.
+ * Adaptive sharpness: tweak loop filter sharpness threshold to improve
+ visual quality at QPs 29 and 30.
+
+ - Speedups
+ * Make Adaptive CDEF more decoder friendly by limiting CDEF application to
+ only regions where high filter strengths are needed.
+
+ - Bug Fixes
+ * Commit 4cc0867f: fix multithreading crashes when loop restoration
+ filtering is used by the encoder.
+ * Commit 74aaa1ef: fix AOM_SCALING_MODE crashes when compound mask
+ prediction modes are used by the encoder.
+
+ 2026-04-02 v3.13.3
+ This release includes several bug fixes. This release is ABI
+ compatible with the last release. See
+ https://aomedia.googlesource.com/aom/+log/v3.13.2..v3.13.3 for all the
+ commits in this release.
+
+ - Bug Fixes
+ * Commit 4cc0867f: fix multithreading crashes when loop restoration
+ filtering is used by the encoder.
+ * Commit 74aaa1ef: fix AOM_SCALING_MODE crashes when compound mask
+ prediction modes are used by the encoder.
+
2026-03-17 v3.13.2
This release includes several bug fixes. This release is ABI
compatible with the last release. See