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First official release, published during the Video Dev Days 2019 in Tokyo.
Features
- Intra and inter frames
- 64x64 superblocks
- 4x4 to 64x64 RDO-selected square and 2:1/1:2 rectangular blocks
- DC, H, V, Paeth, smooth, and a subset of directional prediction modes
- DCT, (FLIP-)ADST and identity transforms (up to 64x64, 16x16 and 32x32 respectively)
- 8-, 10- and 12-bit depth color
- 4:2:0 (full support), 4:2:2 and 4:4:4 (limited) chroma sampling
- 11 speed settings (0-10)
- Near real-time encoding at high speed levels
- Rate control (single-pass and two-pass)
- Temporal RDO
- Scene cut detection
- CLI tool and C API