atracdenc - ATRAC Decoder Encoder

It is free LGPL implementation of ATRAC1, ATRAC3 encoders.

Building:

You need:

• C++17 compiler.
• CMake >= 3.1.
• PCM input/output backend:
  • libsndfile on Linux and MSYS2.
  • Media Foundation on Windows with MSVC.
• Python 3 (optional, only required to run the integration tests).

If the source was cloned with git, fetch submodules first:

git submodule update --init --recursive

The PCM backend can be selected with ATRACDENC_PCM_IO_BACKEND. Supported values are auto, mediafoundation, and libsndfile. The default is mediafoundation for MSVC Windows builds and libsndfile everywhere else.

Linux, Debian/Ubuntu based:

sudo apt update
sudo apt install -y build-essential cmake libsndfile1-dev python3 googletest libgtest-dev

cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DATRACDENC_PCM_IO_BACKEND=libsndfile
cmake --build build -j"$(nproc)"
ctest --test-dir build --output-on-failure

The binary is created at build/src/atracdenc.

Windows, MSYS2 MinGW64:

Run the commands from the MSYS2 MinGW x64 shell.

pacman -S --needed \
    git \
    mingw-w64-x86_64-cmake \
    mingw-w64-x86_64-gcc \
    mingw-w64-x86_64-gtest \
    mingw-w64-x86_64-libsndfile \
    mingw-w64-x86_64-ninja \
    mingw-w64-x86_64-python

cmake -S . -B build-msys2 -G Ninja \
    -DCMAKE_BUILD_TYPE=Release \
    -DATRACDENC_PCM_IO_BACKEND=libsndfile
cmake --build build-msys2
ctest --test-dir build-msys2 --output-on-failure

The binary is created at build-msys2/src/atracdenc.exe.

To create a redistributable directory with required MSYS2 runtime DLLs and license files:

bash tools/package-msys2-runtime.sh build-msys2/src/atracdenc.exe dist-msys2

Windows, MSVC:

Install Visual Studio or Visual Studio Build Tools with the C++ desktop workload. Run the commands from an x64 Native Tools Command Prompt for VS.

cmake -S . -B build-msvc -G "Visual Studio 17 2022" -A x64 ^
    -DATRACDENC_PCM_IO_BACKEND=mediafoundation
cmake --build build-msvc --config Release
ctest --test-dir build-msvc -C Release --output-on-failure

The binary is created at build-msvc/src/Release/atracdenc.exe.

Usage:

By default the output container is selected from the output file extension. Use --container {aea|oma|riff|rm|raw} to select it explicitly. Valid combinations are ATRAC1: AEA/RAW, ATRAC3: OMA/RIFF/RM/RAW, and ATRAC3PLUS: OMA/RIFF/RAW.

ATRAC1:

./atracdenc -e atrac1 -i ~/01.wav -o /tmp/01.aea

ATRAC3:

./atracdenc -e atrac3 -i ~/01.wav -o /tmp/01.oma

ATRAC3PLUS:

./atracdenc -e atrac3plus -i ~/01.wav -o /tmp/01.oma

More information on the atracdenc man page

Limitations:

• Only 44100 16bit wav input file