VideoTools/BUILD.md

Building VideoTools

VideoTools uses a universal build script that automatically detects your platform and builds accordingly.

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Quick Start (All Platforms)

./scripts/build.sh

That's it! The script will:

• ✅ Detect your platform (Linux/macOS/Windows)
• ✅ Build the appropriate executable
• ✅ On Windows: Offer to download FFmpeg automatically

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Platform-Specific Details

Linux

Prerequisites:

• Go 1.21+
• FFmpeg (system package)
• CGO build dependencies

Install FFmpeg:

# Fedora/RHEL
sudo dnf install ffmpeg

# Ubuntu/Debian
sudo apt install ffmpeg

# Arch Linux
sudo pacman -S ffmpeg

Build:

./scripts/build.sh

Output: VideoTools (native executable)

Run:

./VideoTools

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macOS

Prerequisites:

• Go 1.21+
• FFmpeg (via Homebrew)
• Xcode Command Line Tools

Install FFmpeg:

brew install ffmpeg

Build:

./scripts/build.sh

Output: VideoTools (native executable)

Run:

./VideoTools

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Windows

Prerequisites:

• Go 1.21+
• MinGW-w64 (for CGO)
• Git Bash or similar (to run shell scripts)

Build:

./scripts/build.sh

The script will:

1. Build VideoTools.exe
2. Prompt to download FFmpeg automatically
3. Set up everything in dist/windows/

Output: VideoTools.exe (Windows GUI executable)

Run:

• Double-click VideoTools.exe in dist/windows/
• Or: ./VideoTools.exe from Git Bash

Automatic FFmpeg Setup:

# The build script will offer this automatically, or run manually:
./setup-windows.bat

# Or in PowerShell:
.\scripts\setup-windows.ps1 -Portable

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Advanced: Manual Platform-Specific Builds

Linux/macOS Native Build

./scripts/build-linux.sh

Windows Cross-Compile (from Linux)

# Install MinGW first
sudo dnf install mingw64-gcc mingw64-winpthreads-static  # Fedora
# OR
sudo apt install gcc-mingw-w64  # Ubuntu/Debian

# Cross-compile
./scripts/build-windows.sh

# Output: dist/windows/VideoTools.exe (with FFmpeg bundled)

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Build Options

Clean Build

# The build script automatically cleans cache
./scripts/build.sh

Debug Build

# Standard build includes debug info by default
CGO_ENABLED=1 go build -o VideoTools

# Run with debug logging
./VideoTools -debug

Release Build (Smaller Binary)

# Strip debug symbols
go build -ldflags="-s -w" -o VideoTools

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Troubleshooting

"go: command not found"

Install Go 1.21+ from https://go.dev/dl/

"CGO_ENABLED must be set"

CGO is required for Fyne (GUI framework):

export CGO_ENABLED=1
./scripts/build.sh

"ffmpeg not found" (Linux/macOS)

Install FFmpeg using your package manager (see above).

Windows: "x86_64-w64-mingw32-gcc not found"

Install MinGW-w64:

• MSYS2: https://www.msys2.org/
• Or standalone: https://www.mingw-w64.org/

macOS: "ld: library not found"

Install Xcode Command Line Tools:

xcode-select --install

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Build Artifacts

After building, you'll find:

Linux/macOS:

VideoTools/
└── VideoTools          # Native executable

Windows:

VideoTools/
├── VideoTools.exe      # Main executable
└── dist/
    └── windows/
        ├── VideoTools.exe
        ├── ffmpeg.exe      # (after setup)
        └── ffprobe.exe     # (after setup)

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Development Builds

For faster iteration during development:

# Quick build (no cleaning)
go build -o VideoTools

# Run directly
./VideoTools

# With debug output
./VideoTools -debug

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CI/CD

The build scripts are designed to work in CI/CD environments:

# Example GitHub Actions
- name: Build VideoTools
  run: ./scripts/build.sh

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For more details, see:

• QUICKSTART.md - Simple setup guide
• WINDOWS_SETUP.md - Windows-specific instructions
• docs/WINDOWS_COMPATIBILITY.md - Cross-platform implementation details