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alehelandClaude Opus 5.5
550732201c
FilmCraft's FLAC encoder behind `flac-encode`, kept over SoundCraft's: linear prediction, stereo decorrelation and the STREAMINFO MD5 give 0.1-37% smaller files on 12 test signals, and the output is bit-exact through `flac` and ffmpeg. It is 3-5x slower than SoundCraft's, still about 56x real time. `lossless-encode` is now `pcm-encode` plus `flac-encode`, and `EncodeFormat::Flac` writes it through `encode` and `FileEncoder`. With only one of the two features, the other's formats are refused as `Unsupported`. The tests that use FLAC files as decode fixtures (truncation, corruption, metadata bounds, zero-frame files, container preflight) come with it, as do the FLAC oracle tests. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>