Requires Apple command-line developer tools, Python 3, pkg-config, autoconf, automake and libtool.
Install build tools locally:
  python3 -m venv .build-tools/media-tools
  .build-tools/media-tools/bin/pip install -r scripts/media-build-requirements.txt
Build:
  bash scripts/build-media.sh
All dependency source archives are included. No source patches are applied.
The output standalone LGPL FFmpeg and ffprobe executables are in assets/media/.
