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@ -1,10 +1,82 @@
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-------------------------------------------------------------------
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Wed Feb 8 11:53:41 UTC 2023 - Bjørn Lie <bjorn.lie@gmail.com>
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- Update to version 3.6.0:
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* This release includes compression efficiency and perceptual
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quality improvements, speedup and memory optimizations, and
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some new features. This release is ABI compatible with the last
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release.
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* New Features:
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- New values 20-27 (corresponding to levels 7.0-7.3 and
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8.0-8.3) for the encoder control
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AV1E_SET_TARGET_SEQ_LEVEL_IDX (note that the proposal to add
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the new levels are still in draft status). The original
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special value 24 (keep level stats only for level monitoring)
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is renumbered as 32.
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- New encoder control AV1E_SET_SKIP_POSTPROC_FILTERING to skip
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the application of post-processing filters on reconstructed
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frame in all intra mode.
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- New encoder option "kf-max-pyr-height": Maximum height of
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pyramid structure used for the GOP starting with a key frame
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(-1 to 5).
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- Make SVC work for screen content.
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- Rate control improvements to reduce frame-size spikes for
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screen content coding.
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- RISC-V architecture support with gcc toolchain.
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* Compression Efficiency Improvements:
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- Peak compression efficiency in VOD setting is improved by 1%.
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- 0.7% - 2.2% RTC encoding BDrate gains for real time speed 8
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to 10.
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- 15% RTC encoding BDrate gains for screen content speed 10.
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* Perceptual Quality Improvements:
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- Resolved a visual quality issue that was reported for high
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resolution clips (2K) for speed 4 and above in VOD use case.
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- Visual quality improvements to screen content coding.
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- Quality improvements to temporal layer RTC coding.
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* Speedup and Memory Optimizations:
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- RTC single-thread encoder speedup:
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. ~6% instruction count reduction for speed 5 and 6.
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. ~15% instruction count reduction for speed 7.
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. ~10% instruction count reduction for speed 8 to 10 (>=360p
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resolutions).
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- RTC multi-thread encoder speedup (beyond single-thread
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speedup):
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. 5-8% encode time reduction for speed 7 to 10.
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- RTC screen-content encoder speedup:
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. 11% instruction count reduction for speed 9 and 10 (>=720p
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resolutions).
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- ~5% reduction in heap memory requirements for RTC, speed 6 to
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10.
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* AVIF:
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. 4-5% speedup for speed 9 in still-picture encoding mode.
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. 3-4% heap memory reduction in still-picture encoding mode
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for 360p-720p resolutions with multiple threads.
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* Bug Fixes:
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- Added a workaround for an AV1 specification bug which makes
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TRANSLATION type global motion models unusable.
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- Fixed AddressSanitizer global-buffer-overflow errors in
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av1/encoder/arm/neon/av1_fwd_txfm2d_neon.c.
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- Fixed AddressSanitizer heap-buffer-overflow error in
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av1_wiener_convolve_add_src_neon().
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- chromium:1393384 Avoid scene detection on spatial resize.
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- aomedia:3308 Remove color artifacts under high motion.
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- aomedia:3310 Avoid out of memory failures with Visual Studio
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2017, 2019, and 2022 for Win32 x86 builds.
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- aomedia:3346 Make SVC work properly for screen content.
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- aomedia:3348 Fix a bug where an uninitialized search_site is
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used.
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- aomedia:3365 Work around what seems like a Visual Studio 2022
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compiler optimization bug.
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- aomedia:3369 Incorrect PSNR values reported by libaom for
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12-bit encode.
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- Modernize spec, use cmake_build and ldconfig_scriptlets macros.
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-------------------------------------------------------------------
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Thu Sep 22 14:56:11 UTC 2022 - Bjørn Lie <bjorn.lie@gmail.com>
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- Update to version 3.5.0:
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* This release is ABI compatible with the last one, including
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speedup and memory optimizations, and new APIs and features.
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* New Features
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- Support for frame parallel encode for larger number of
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threads. --fp-mt flag is available for all build
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Dominique Leuenberger
3 months ago
committed by
Git OBS Bridge