Windows Libraries of libaacs & libbdplus

This repository provides pre-built libraries for libaacs and libbdplus, essential components for playing Blu-ray discs with popular software like FFmpeg, VLC, and MPC-HC.

libaacs: https://www.videolan.org/developers/libaacs.html
libbdplus: https://www.videolan.org/developers/libbdplus.html

This repository provides an automated build process and ready-to-use binaries as a transparent alternative to manual uploads shared online. To supplement existing community resources, we use GitHub Actions and cross-compilation with mingw64 on Ubuntu to offer a verifiable path from source to executable. This 'clean-room' compilation ensures a consistent, auditable result, and we encourage users to review the build scripts for full transparency.

Tip

Binaries for Windows on ARM(64) are now available!

How to Use libaacs & libbdplus

Using Installer

Simply download, run, select your architecture, and install, you'll be up and running in seconds.

Manual

Once downloaded, you'll find x86, x64 and arm64 Windows versions of the libraries. Follow these steps to get started:

Download the libraries from the Releases page.
Extract the appropriate architecture: winx64 for x64, winx86 for x86 and winarm64 for ARM64.
Move the DLL files (libaacs.dll and libbdplus.dll) to C:\Windows\System32. If you are installing x86 binaries on a 64-bit Windows system, place them in C:\Windows\SysWOW64 instead. This will make them accessible to all applications.

Unlike the libraries provided in external sources (like Mega.nz), these libraries have all dependencies statically linked, so you won't need any additional DLLs (like libgpg-error6-0.dll or libgcrypt-20.dll).

For detailed instruction, refer to this forum post from Doom9.

Building libaacs & libbdplus Locally

To build libaacs & libbdplus for Windows on WSL 1 or 2 (Debian/Ubuntu), follow these steps:

sudo apt-get install -y autoconf fig2dev mingw-w64 mingw-w64-tools mingw-w64-i686-dev gcc make m4 pkg-config gettext lbzip2 flex bison
git clone https://github.com/KnugiHK/libaacs-libbdplus-windows && cd libaacs-libbdplus-windows
make # This will build both x86 and x64. See below for arm64

To build each architecture individually:

make x32
make x64
make arm64

If the Makefile does not work for you, try to use the build.sh script instead.

Building the Installer

The installer is built using NSIS. To build the installer, place the DLLs to the winx86, winx64 and winarm64 directories accordingly and run the following command:

makensis installer.nsi

Testing

This repository includes a testing utility, dll_loader.c. To use it, compile the source using x86_64-w64-mingw32-gcc (for 64-bit) or i686-w64-mingw32-gcc (for 32-bit). Once built, run the executable on Windows, ensuring the library files are organized in the following directory structure:

.
├── dll_loader_arm64.exe
├── dll_loader_x64.exe
├── dll_loader_x86.exe
├── winx64
│   ├── aacs_info.exe
│   ├── libaacs.dll
│   └── libbdplus.dll
├── winx86
│   ├── aacs_info.exe
│   ├── libaacs.dll
│   └── libbdplus.dll
└── winarm64
    ├── aacs_info.exe
    ├── libaacs.dll
    └── libbdplus.dll

Verifying Build Integrity

To ensure that the binaries provided in the releases were built directly from this source code via GitHub Actions and have not been tampered with, GitHub Artifact Attestations is used. You can verify the authenticity of any .exe or .dll file using the GitHub CLI.

Using PowerShell (Windows)

gci "*.exe", "./winx64/*", "./winx86/*", "./winarm64/*" | % { gh attestation verify $_.FullName -R KnugiHK/libaacs-libbdplus-windows }

Using Bash (Linux/WSL/macOS)

for file in *.exe ./winx64/* ./winx86/* ./winarm64/*; do; gh attestation verify "$file" -R KnugiHK/libaacs-libbdplus-windows ; done

Credit

This project is inspired by wget-windows, originally created by @webfolderio.

Development also referenced the Cross-compile libaacs for Windows (64bit) gist.