Weekly pre-release

Improvements

• speed 10 is about a 15% faster compared to the last pre-release
• Improvements on the intra-modes pruning logic in the RDO
• More float to fixed-point conversions
• Make an early-exit condition in RDO faster
• Simplify logic in Counter/Recorder store method
• Still picture mode now encodes valid bitstreams (note: the reduced still picture header is not yet enabled)

New tools

• Intra edge filter (native mode only, about 4% slower at speed level 2 for 0.5% enhanced compression)

Changes

• Upstream nasm-rs 0.1.7 can be used to build rav1e.