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Explanation

Understanding-oriented discussion.

  • Why libav-direct — the FFmpeg-7.0 threading wall, the EOL trap, and why linking the libraries directly is the way under both. The headline story.
  • The licensing model — MIT tooling, LGPL/GPL artifacts, and why shipping both is clean.
  • The build — wasi-sdk, the single-threaded libav* config, setjmp/longjmp lowering, and the POSIX/WASI compat shims.