c2pa_audio 0.2.1

Dart FFI bindings to sign and verify C2PA (Content Credentials) in WAV and MP3 audio — ES256/CBOR/JUMBF/COSE, no c2pa-rs. Interoperable with c2pa-rs.

0.2.1

• Docs: README now lists FLAC alongside WAV/MP3/M4A (FLAC sign+verify shipped in 0.2.0); corrected the verify auto-detect comment to WAV/MP3/M4A/FLAC. No code change.

0.2.0

• M4A/MP4 (ISO BMFF, c2pa.hash.bmff.v3) and FLAC (ID3v2 GEOB) sign + verify, interoperable with c2pa-rs.
• signM4a / signFlac conveniences; verify auto-detects WAV/MP3/M4A/FLAC.

0.1.0

• Initial release: FFI bindings for the native c2pa-audio library.
• Sign and verify C2PA Content Credentials in WAV and MP3 audio.
• signWav / signMp3 / sign(mime: ...) and verify (auto-detects container).
• Interoperable with the c2pa-rs reference implementation.