release candidate 1 is available. The release tag is
. Your testing will be greatly appreciated.
release is Electric Sky. The 'electric-sky'
0192bca7cbdbaeb6d41aa060f7becae5f195f96d.
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: CDEF control option to disable CDEF on non-ref frames
* 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
Thanks,
Frank