ffai-media
Media ingest/egress for FFai — the libavformat seat.
Policy: all container/codec work routes through remade_ffmpeg_rs
(rff-* crates) as the default backend — we own it, it is pure Rust, and
it keeps the zero-C/C++ promise. Phase 0 ships native WAV support (the one
format every ASR/TTS engine needs on day one); everything else returns a
clear "pending rff integration" error rather than silently failing.