gecko-dev/third_party/dav1d/NEWS

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Changes for 0.4.0 'Cheetah':
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- 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
Changes for 0.3.1 'Sailfish':
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- 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':
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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':
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- Large improvement on MSAC decoding with SSE, bringing 4-6% speed increase
The impact is important on SSSE3, SSE4 and AVX-2 cpus
- SSSE3 optimizations for all blocks size in itx
- SSSE3 optimizations for ipred_paeth and ipref_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':
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- SSSE3 optimization for cdef_dir
- AVX-2 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':
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- ARM64 and ARM optimizations using NEON instructions
- SSSE3 optimizations for both 32 and 64bits
- More AVX-2 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':
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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 AVX-2 64bits processors, making it the fastest decoder
- Partial acceleration for SSSE3 processors
- Partial acceleration for NEON processors