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263 строки
9.5 KiB
Plaintext
263 строки
9.5 KiB
Plaintext
Changes for 0.9.2 'Golden Eagle':
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---------------------------------
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0.9.2 is a small update of dav1d on the 0.9.x branch:
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- x86: SSE4 optimizations of inverse transforms for 10bit for all sizes
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- x86: mc.resize optimizations with AVX2/SSSE3 for 10/12b
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- x86: SSSE3 optimizations for cdef_filter in 10/12b and mc_w_mask_422/444 in 8b
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- ARM NEON optimizations for FilmGrain Gen_grain functions
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- Optimizations for splat_mv in SSE2/AVX2 and NEON
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- x86: SGR improvements for SSSE3 CPUs
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- x86: AVX2 optimizations for cfl_ac
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Changes for 0.9.1 'Golden Eagle':
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---------------------------------
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0.9.1 is a middle-size revision of dav1d, adding notably 10b acceleration for SSSE3:
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- 10/12b SSSE3 optimizations for mc (avg, w_avg, mask, w_mask, emu_edge),
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prep/put_bilin, prep/put_8tap, ipred (dc/h/v, paeth, smooth, pal, filter), wiener,
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sgr (10b), warp8x8, deblock, film_grain, cfl_ac/pred for 32bit and 64bit x86 processors
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- Film grain NEON for fguv 10/12b, fgy/fguv 8b and fgy/fguv 10/12 arm32
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- Fixes for filmgrain on ARM
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- itx 10bit optimizations for 4x4/x8/x16, 8x4/x8/x16 for SSE4
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- Misc improvements on SSE2, SSE4
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Changes for 0.9.0 'Golden Eagle':
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---------------------------------
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0.9.0 is a major version of dav1d, adding notably 10b acceleration on x64.
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Details:
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- x86 (64bit) AVX2 implementation of most 10b/12b functions, which should provide
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a large boost for high-bitdepth decoding on modern x86 computers and servers.
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- ARM64 neon implementation of FilmGrain (4:2:0/4:2:2/4:4:4 8bit)
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- New API to signal events happening during the decoding process
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Changes for 0.8.2 'Eurasian hobby':
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-----------------------------------
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0.8.2 is a middle-size update of the 0.8.0 branch:
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- ARM32 optimizations for ipred and itx in 10/12bits,
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completing the 10b/12b work on ARM64 and ARM32
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- Give the post-filters their own threads
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- ARM64: rewrite the wiener functions
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- Speed up coefficient decoding, 0.5%-3% global decoding gain
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- x86 optimizations for CDEF_filter and wiener in 10/12bit
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- x86: rewrite the SGR AVX2 asm
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- x86: improve msac speed on SSE2+ machines
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- ARM32: improve speed of ipred and warp
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- ARM64: improve speed of ipred, cdef_dir, cdef_filter, warp_motion and itx16
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- ARM32/64: improve speed of looprestoration
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- Add seeking, pausing to the player
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- Update the player for rendering of 10b/12b
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- Misc speed improvements and fixes on all platforms
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- Add a xxh3 muxer in the dav1d application
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Changes for 0.8.1 'Eurasian hobby':
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-----------------------------------
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0.8.1 is a minor update on 0.8.0:
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- Keep references to buffers valid after dav1d_close(). Fixes a regression
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caused by the picture buffer pool added in 0.8.0.
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- ARM32 optimizations for 10bit bitdepth for SGR
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- ARM32 optimizations for 16bit bitdepth for blend/w_masl/emu_edge
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- ARM64 optimizations for 10bit bitdepth for SGR
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- x86 optimizations for wiener in SSE2/SSSE3/AVX2
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Changes for 0.8.0 'Eurasian hobby':
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-----------------------------------
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0.8.0 is a major update for dav1d:
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- Improve the performance by using a picture buffer pool;
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The improvements can reach 10% on some cases on Windows.
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- Support for Apple ARM Silicon
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- ARM32 optimizations for 8bit bitdepth for ipred paeth, smooth, cfl
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- ARM32 optimizations for 10/12/16bit bitdepth for mc_avg/mask/w_avg,
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put/prep 8tap/bilin, wiener and CDEF filters
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- ARM64 optimizations for cfl_ac 444 for all bitdepths
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- x86 optimizations for MC 8-tap, mc_scaled in AVX2
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- x86 optimizations for CDEF in SSE and {put/prep}_{8tap/bilin} in SSSE3
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Changes for 0.7.1 'Frigatebird':
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------------------------------
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0.7.1 is a minor update on 0.7.0:
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- ARM32 NEON optimizations for itxfm, which can give up to 28% speedup, and MSAC
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- SSE2 optimizations for prep_bilin and prep_8tap
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- AVX2 optimizations for MC scaled
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- Fix a clamping issue in motion vector projection
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- Fix an issue on some specific Haswell CPU on ipred_z AVX2 functions
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- Improvements on the dav1dplay utility player to support resizing
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Changes for 0.7.0 'Frigatebird':
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------------------------------
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0.7.0 is a major release for dav1d:
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- Faster refmv implementation gaining up to 12% speed while -25% of RAM (Single Thread)
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- 10b/12b ARM64 optimizations are mostly complete:
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- ipred (paeth, smooth, dc, pal, filter, cfl)
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- itxfm (only 10b)
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- AVX2/SSSE3 for non-4:2:0 film grain and for mc.resize
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- AVX2 for cfl4:4:4
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- AVX-512 CDEF filter
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- ARM64 8b improvements for cfl_ac and itxfm
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- ARM64 implementation for emu_edge in 8b/10b/12b
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- ARM32 implementation for emu_edge in 8b
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- Improvements on the dav1dplay utility player to support 10 bit,
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non-4:2:0 pixel formats and film grain on the GPU
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Changes for 0.6.0 'Gyrfalcon':
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------------------------------
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0.6.0 is a major release for dav1d:
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- New ARM64 optimizations for the 10/12bit depth:
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- mc_avg, mc_w_avg, mc_mask
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- mc_put/mc_prep 8tap/bilin
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- mc_warp_8x8
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- mc_w_mask
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- mc_blend
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- wiener
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- SGR
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- loopfilter
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- cdef
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- New AVX-512 optimizations for prep_bilin, prep_8tap, cdef_filter, mc_avg/w_avg/mask
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- New SSSE3 optimizations for film grain
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- New AVX2 optimizations for msac_adapt16
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- Fix rare mismatches against the reference decoder, notably because of clipping
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- Improvements on ARM64 on msac, cdef and looprestoration optimizations
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- Improvements on AVX2 optimizations for cdef_filter
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- Improvements in the C version for itxfm, cdef_filter
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Changes for 0.5.2 'Asiatic Cheetah':
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------------------------------------
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0.5.2 is a small release improving speed for ARM32 and adding minor features:
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- ARM32 optimizations for loopfilter, ipred_dc|h|v
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- Add section-5 raw OBU demuxer
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- Improve the speed by reducing the L2 cache collisions
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- Fix minor issues
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Changes for 0.5.1 'Asiatic Cheetah':
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------------------------------------
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0.5.1 is a small release improving speeds and fixing minor issues
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compared to 0.5.0:
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- SSE2 optimizations for CDEF, wiener and warp_affine
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- NEON optimizations for SGR on ARM32
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- Fix mismatch issue in x86 asm in inverse identity transforms
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- Fix build issue in ARM64 assembly if debug info was enabled
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- Add a workaround for Xcode 11 -fstack-check bug
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Changes for 0.5.0 'Asiatic Cheetah':
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------------------------------------
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0.5.0 is a medium release fixing regressions and minor issues,
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and improving speed significantly:
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- Export ITU T.35 metadata
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- Speed improvements on blend_ on ARM
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- Speed improvements on decode_coef and MSAC
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- NEON optimizations for blend*, w_mask_, ipred functions for ARM64
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- NEON optimizations for CDEF and warp on ARM32
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- SSE2 optimizations for MSAC hi_tok decoding
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- SSSE3 optimizations for deblocking loopfilters and warp_affine
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- AVX2 optimizations for film grain and ipred_z2
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- SSE4 optimizations for warp_affine
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- VSX optimizations for wiener
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- Fix inverse transform overflows in x86 and NEON asm
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- Fix integer overflows with large frames
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- Improve film grain generation to match reference code
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- Improve compatibility with older binutils for ARM
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- More advanced Player example in tools
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Changes for 0.4.0 'Cheetah':
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----------------------------
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- Fix playback with unknown OBUs
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- Add an option to limit the maximum frame size
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- SSE2 and ARM64 optimizations for MSAC
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- Improve speed on 32bits systems
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- Optimization in obmc blend
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- Reduce RAM usage significantly
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- The initial PPC SIMD code, cdef_filter
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- NEON optimizations for blend functions on ARM
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- NEON optimizations for w_mask functions on ARM
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- NEON optimizations for inverse transforms on ARM64
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- VSX optimizations for CDEF filter
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- Improve handling of malloc failures
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- Simple Player example in tools
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Changes for 0.3.1 'Sailfish':
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------------------------------
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- Fix a buffer overflow in frame-threading mode on SSSE3 CPUs
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- Reduce binary size, notably on Windows
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- SSSE3 optimizations for ipred_filter
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- ARM optimizations for MSAC
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Changes for 0.3.0 'Sailfish':
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------------------------------
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This is the final release for the numerous speed improvements of 0.3.0-rc.
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It mostly:
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- Fixes an annoying crash on SSSE3 that happened in the itx functions
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Changes for 0.2.2 (0.3.0-rc) 'Antelope':
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-----------------------------
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- Large improvement on MSAC decoding with SSE, bringing 4-6% speed increase
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The impact is important on SSSE3, SSE4 and AVX2 cpus
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- SSSE3 optimizations for all blocks size in itx
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- SSSE3 optimizations for ipred_paeth and ipred_cfl (420, 422 and 444)
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- Speed improvements on CDEF for SSE4 CPUs
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- NEON optimizations for SGR and loop filter
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- Minor crashes, improvements and build changes
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Changes for 0.2.1 'Antelope':
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----------------------------
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- SSSE3 optimization for cdef_dir
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- AVX2 improvements of the existing CDEF optimizations
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- NEON improvements of the existing CDEF and wiener optimizations
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- Clarification about the numbering/versionning scheme
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Changes for 0.2.0 'Antelope':
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----------------------------
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- ARM64 and ARM optimizations using NEON instructions
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- SSSE3 optimizations for both 32 and 64bits
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- More AVX2 assembly, reaching almost completion
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- Fix installation of includes
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- Rewrite inverse transforms to avoid overflows
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- Snap packaging for Linux
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- Updated API (ABI and API break)
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- Fixes for un-decodable samples
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Changes for 0.1.0 'Gazelle':
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----------------------------
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Initial release of dav1d, the fast and small AV1 decoder.
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- Support for all features of the AV1 bitstream
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- Support for all bitdepth, 8, 10 and 12bits
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- Support for all chroma subsamplings 4:2:0, 4:2:2, 4:4:4 *and* grayscale
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- Full acceleration for AVX2 64bits processors, making it the fastest decoder
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- Partial acceleration for SSSE3 processors
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- Partial acceleration for NEON processors
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