Changes for 0.8.0 'Eurasian hobby":----------------------------------- 0.8.0 is a major update for dav1d: - Improve the performance by using a picture buffer pool;   The improvements can reach 10% on some cases on Windows. - Support for Apple ARM Silicon - ARM32 optimizations for 8bit bitdepth for ipred paeth, smooth, cfl - ARM32 optimizations for 10/12/16bit bitdepth for mc_avg/mask/w_avg,   put/prep 8tap/bilin, wiener and CDEF filters - ARM64 optimizations for cfl_ac 444 for all bitdepths - x86 optimizations for MC 8-tap, mc_scaled in AVX2 - x86 optimizations for CDEF in SSE and {put/prep}_{8tap/bilin} in SSSE3  Changes for 0.7.1 'Frigatebird':------------------------------ 0.7.1 is a minor update on 0.7.0: - ARM32 NEON optimizations for itxfm, which can give up to 28% speedup, and MSAC - SSE2 optimizations for prep_bilin and prep_8tap - AVX2 optimizations for MC scaled - Fix a clamping issue in motion vector projection - Fix an issue on some specific Haswell CPU on ipred_z AVX2 functions - Improvements on the dav1dplay utility player to support resizing  Changes for 0.7.0 'Frigatebird':------------------------------ 0.7.0 is a major release for dav1d: - Faster refmv implementation gaining up to 12% speed while -25% of RAM (Single Thread) - 10b/12b ARM64 optimizations are mostly complete:   - ipred (paeth, smooth, dc, pal, filter, cfl)   - itxfm (only 10b) - AVX2/SSSE3 for non-4:2:0 film grain and for mc.resize - AVX2 for cfl4:4:4 - AVX-512 CDEF filter - ARM64 8b improvements for cfl_ac and itxfm - ARM64 implementation for emu_edge in 8b/10b/12b - ARM32 implementation for emu_edge in 8b - Improvements on the dav1dplay utility player to support 10 bit,   non-4:2:0 pixel formats and film grain on the GPU  Changes for 0.6.0 'Gyrfalcon':------------------------------ 0.6.0 is a major release for dav1d: - New ARM64 optimizations for the 10/12bit depth:    - mc_avg, mc_w_avg, mc_mask    - mc_put/mc_prep 8tap/bilin    - mc_warp_8x8    - mc_w_mask    - mc_blend    - wiener    - SGR    - loopfilter    - cdef - New AVX-512 optimizations for prep_bilin, prep_8tap, cdef_filter, mc_avg/w_avg/mask - New SSSE3 optimizations for film grain - New AVX2 optimizations for msac_adapt16 - Fix rare mismatches against the reference decoder, notably because of clipping - Improvements on ARM64 on msac, cdef and looprestoration optimizations - Improvements on AVX2 optimizations for cdef_filter - Improvements in the C version for itxfm, cdef_filter  Changes for 0.5.2 'Asiatic Cheetah':------------------------------------ 0.5.2 is a small release improving speed for ARM32 and adding minor features: - ARM32 optimizations for loopfilter, ipred_dc|h|v - Add section-5 raw OBU demuxer - Improve the speed by reducing the L2 cache collisions - Fix minor issues  Changes for 0.5.1 'Asiatic Cheetah':------------------------------------ 0.5.1 is a small release improving speeds and fixing minor issuescompared to 0.5.0: - SSE2 optimizations for CDEF, wiener and warp_affine - NEON optimizations for SGR on ARM32 - Fix mismatch issue in x86 asm in inverse identity transforms - Fix build issue in ARM64 assembly if debug info was enabled - Add a workaround for Xcode 11 -fstack-check bug  Changes for 0.5.0 'Asiatic Cheetah':------------------------------------ 0.5.0 is a medium release fixing regressions and minor issues,and improving speed significantly: - Export ITU T.35 metadata - Speed improvements on blend_ on ARM - Speed improvements on decode_coef and MSAC - NEON optimizations for blend*, w_mask_, ipred functions for ARM64 - NEON optimizations for CDEF and warp on ARM32 - SSE2 optimizations for MSAC hi_tok decoding - SSSE3 optimizations for deblocking loopfilters and warp_affine - AVX2 optimizations for film grain and ipred_z2 - SSE4 optimizations for warp_affine - VSX optimizations for wiener - Fix inverse transform overflows in x86 and NEON asm - Fix integer overflows with large frames - Improve film grain generation to match reference code - Improve compatibility with older binutils for ARM - More advanced Player example in tools  Changes for 0.4.0 'Cheetah':----------------------------  - Fix playback with unknown OBUs - Add an option to limit the maximum frame size - SSE2 and ARM64 optimizations for MSAC - Improve speed on 32bits systems - Optimization in obmc blend - Reduce RAM usage significantly - The initial PPC SIMD code, cdef_filter - NEON optimizations for blend functions on ARM - NEON optimizations for w_mask functions on ARM - NEON optimizations for inverse transforms on ARM64 - VSX optimizations for CDEF filter - Improve handling of malloc failures - Simple Player example in tools  Changes for 0.3.1 'Sailfish':------------------------------  - Fix a buffer overflow in frame-threading mode on SSSE3 CPUs - Reduce binary size, notably on Windows - SSSE3 optimizations for ipred_filter - ARM optimizations for MSAC  Changes for 0.3.0 'Sailfish':------------------------------ This is the final release for the numerous speed improvements of 0.3.0-rc.It mostly: - Fixes an annoying crash on SSSE3 that happened in the itx functions  Changes for 0.2.2 (0.3.0-rc) 'Antelope':-----------------------------  - Large improvement on MSAC decoding with SSE, bringing 4-6% speed increase   The impact is important on SSSE3, SSE4 and AVX2 cpus - SSSE3 optimizations for all blocks size in itx - SSSE3 optimizations for ipred_paeth and ipred_cfl (420, 422 and 444) - Speed improvements on CDEF for SSE4 CPUs - NEON optimizations for SGR and loop filter - Minor crashes, improvements and build changes  Changes for 0.2.1 'Antelope':----------------------------  - SSSE3 optimization for cdef_dir - AVX2 improvements of the existing CDEF optimizations - NEON improvements of the existing CDEF and wiener optimizations - Clarification about the numbering/versionning scheme  Changes for 0.2.0 'Antelope':----------------------------  - ARM64 and ARM optimizations using NEON instructions - SSSE3 optimizations for both 32 and 64bits - More AVX2 assembly, reaching almost completion - Fix installation of includes - Rewrite inverse transforms to avoid overflows - Snap packaging for Linux - Updated API (ABI and API break) - Fixes for un-decodable samples  Changes for 0.1.0 'Gazelle':---------------------------- Initial release of dav1d, the fast and small AV1 decoder. - Support for all features of the AV1 bitstream - Support for all bitdepth, 8, 10 and 12bits - Support for all chroma subsamplings 4:2:0, 4:2:2, 4:4:4 *and* grayscale - Full acceleration for AVX2 64bits processors, making it the fastest decoder - Partial acceleration for SSSE3 processors - Partial acceleration for NEON processors