FFmpeg Windows corresponding source

The bundled Windows executables and DLLs are the BtbN FFmpeg Builds
win64-lgpl-shared-8.1 artifact produced on 2026-07-31. The distributed binary
archive is checksum-pinned by the application build script:

  ffmpeg-n8.1.2-34-g9b6c8969e0-win64-lgpl-shared-8.1.zip
  SHA-256 C222A490DDE4E7059F45495DEEF6BFB98DBCACC2B43DF5B607546252037AA95C

The exact FFmpeg source commit used by that artifact is included at:

  Source/FFmpeg-9b6c8969e05b4f0b29f0f85cd501be6b3e582e6b.tar.gz
  SHA-256 7E779215EAE16AD7E93DDAD59BD82822BD3D34E4DC61F9996F9481B2C0605BC3

The exact BtbN build recipe, including dependency versions, source locations,
patches, and configuration logic, is included at:

  Source/FFmpeg-Builds-a99e8230eae00d1cee38f23076a7a1f55cd984e2.tar.gz
  SHA-256 7DEAC4A5190B2BE84D4D548DB2885D05152F9E3D77069D0E34841A46EFD95E2B

The configuration embedded in the executable is recorded in
build-configuration.txt. The build uses the LGPL, shared-library variant and
does not enable GPL or nonfree components.

Upstream projects:

  https://github.com/FFmpeg/FFmpeg
  https://github.com/BtbN/FFmpeg-Builds
