A standalone C++ port of Friture's real-time 2D spectrogram visualization.

# Install dependencies (Ubuntu 24.04)
./install_deps.sh

# Build
mkdir build && cd build
cmake ..
make -j$(nproc)

# Run tests
./examples/test_eigen

• CLAUDE.md - Complete environment setup guide (649 lines)
• FRITURE_CPP_PORT_PLAN.md - Full specification and implementation plan

• Graphics: SDL2/SDL3 with GLSL shaders
• Audio: PortAudio
• Signal Processing: FFTW3 / Eigen
• UI: Clay (immediate-mode layout)
• Build: CMake 3.20+
• Testing: GoogleTest

• CMake build system (3.28.3)
• Eigen3 matrix operations (3.4.0)
• GoogleTest framework (1.14.0)
• Headless testing with Xpra

• FFTW3 float linking (-lfftw3f)
• SDL2 runtime dependencies
• PortAudio runtime dependencies

This project is designed to build and test in headless cloud environments. See CLAUDE.md for complete setup instructions.

Tested on: Ubuntu 24.04 with GCC 13.3.0

See COPYING.txt - GNU GPL v3

This is a C++ port of the Python-based Friture audio analyzer.