CutWire FFmpeg 7.1 builds

Fork of BtbN/FFmpeg-Builds used by Drift to pin one FFmpeg version: 7.1, gpl-shared, for linux64 and win64.

This is not a daily autobuild mirror. BtbN dropped n7.1 from their moving latest tag on 2026-08-17 (they now ship n8.1 / n9.0 / master). Drift still needs 7.1 because Qt 6.10.3’s QtMultimedia ffmpeg backend is FFmpeg 7.1.3 — Drift and Qt both load libav* in-process, so the soversion has to match.

GitHub Actions is disabled on this fork. Rebuild locally if the pin ever needs refreshing:

./makeimage.sh linux64 gpl-shared 7.1
./build.sh     linux64 gpl-shared 7.1

./makeimage.sh win64 gpl-shared 7.1
./build.sh     win64 gpl-shared 7.1

Artifacts land in artifacts/. Publish them as the n7.1 release.

The current n7.1 release is the last BtbN n7.1 gpl-shared autobuild (n7.1.5-16-g9a4bb2c579, autobuild-2026-08-16-13-00), renamed to stable filenames. Checksums are in checksums.sha256 on that release.

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Original BtbN documentation follows.

FFmpeg Static Auto-Builds

Static Windows (x86_64) and Linux (x86_64) Builds of ffmpeg master and latest release branch.

Windows builds are targetting Windows 7 and newer, provided UCRT is installed. The minimum supported version is Windows 10 22H2, no guarantees on anything older.

Linux builds are targetting RHEL/CentOS 8 (glibc-2.28 + linux-4.18) and anything more recent.

Package List

For a list of included dependencies check the scripts.d directory. Every file corresponds to its respective package.

How to make a build

Prerequisites

• bash
• docker

Build Image

• ./makeimage.sh target variant [addin [addin] [addin] ...]

Build FFmpeg

• ./build.sh target variant [addin [addin] [addin] ...]

On success, the resulting zip file will be in the artifacts subdir.

Targets, Variants and Addins

Available targets:

• win64 (x86_64 Windows)
• win32 (x86 Windows)
• linux64 (x86_64 Linux, glibc>=2.28, linux>=4.18)
• linuxarm64 (arm64 (aarch64) Linux, glibc>=2.28, linux>=4.18)

The linuxarm64 target will not build some dependencies due to lack of arm64 (aarch64) architecture support or cross-compiling restrictions.

• davs2 and xavs2: aarch64 support is broken.
• libmfx and libva: Library for Intel QSV, so there is no aarch64 support.

Available variants:

• gpl Includes all dependencies, even those that require full GPL instead of just LGPL.
• lgpl Lacking libraries that are GPL-only. Most prominently libx264 and libx265.
• nonfree Includes fdk-aac in addition to all the dependencies of the gpl variant.
• gpl-shared Same as gpl, but comes with the libav* family of shared libs instead of pure static executables.
• lgpl-shared Same again, but with the lgpl set of dependencies.
• nonfree-shared Same again, but with the nonfree set of dependencies.

All of those can be optionally combined with any combination of addins:

• 4.4/5.0/5.1/6.0/6.1/7.0/7.1 to build from the respective release branch instead of master.
• debug to not strip debug symbols from the binaries. This increases the output size by about 250MB.
• lto build all dependencies and ffmpeg with -flto=auto (HIGHLY EXPERIMENTAL, broken for Windows, sometimes works for Linux)