Fastest and safest AV1 encoder - command line encoder

 rav1e is a encoder for the AV1 video codec. It supports the
 following features:
  * Intra, inter, and switch frames
  * 64x64 superblocks
  * 4x4 to 64x64 RDO-selected square and rectangular blocks
  * DC, H, V, Paeth, smooth, and all 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, 4:2:2 and 4:4:4 chroma sampling
  * 11 speed settings (0-10, exhaustive to near real-time)
  * Constant quantizer and target bitrate (single- and multi-pass) encoding
    modes
  * Still picture mode
 .
 This package contains the command line encoder.