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Add Windows 11 compatibility and cross-platform build system

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Ports Windows compatibility improvements from VideoTools to enable
VT_Player to build and run on Windows 11 alongside VideoTools.

Build System Enhancements:
- Universal build script auto-detects platform (Linux/macOS/Windows)
- Platform-specific build routing (build-linux.sh for Unix)
- Windows: Builds vt_player.exe with GUI flags (-H windowsgui)
- Windows: Automatic FFmpeg PATH detection
- Shares dependencies with VideoTools installation

Windows Console Hiding:
- Created internal/utils/proc_windows.go (Windows-specific)
- Created internal/utils/proc_other.go (Linux/macOS no-op)
- ApplyNoWindow() hides FFmpeg/ffprobe console windows on Windows
- Provides clean GUI experience without console popups

Cross-Platform Support:
- Build flags adapt to target platform automatically
- Go build tags for platform-specific code
- CGO enabled for all platforms (required by Fyne)
- Tested on Linux, ready for Windows 11

Documentation:
- WINDOWS_COMPATIBILITY.md: Complete Windows setup guide
- Explains dependency sharing with VideoTools
- Troubleshooting section for common issues
- Platform-specific build flag documentation

Benefits for Jake's Windows 11 Environment:
- Uses same MinGW-w64 toolchain as VideoTools
- Uses same FFmpeg installation (already on PATH)
- No additional dependency installation needed
- Build process identical to VideoTools

Technical Details:
- Windows GUI binary: vt_player.exe (~45MB)
- Linux/macOS binary: vt_player (~32MB)
- All platforms use CGO for Fyne OpenGL bindings
- syscall.SysProcAttr{HideWindow: true} for Windows processes

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
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WINDOWS_COMPATIBILITY.md Normal file
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# VT_Player Windows Compatibility Guide
This document explains how VT_Player has been made compatible with Windows 11 and how it shares dependencies with VideoTools.
---
## Quick Start (Windows 11)
If you already have VideoTools installed and working on Windows 11, VT_Player should work immediately with the same dependencies:
```bash
# In Git Bash
cd /path/to/VT_Player
./scripts/build.sh
```
The build will:
1. Detect Windows platform automatically
2. Build `vt_player.exe` with Windows GUI flags
3. Check for FFmpeg on PATH (should already be there from VideoTools)
---
## What Was Changed for Windows Compatibility
### 1. **Universal Build Script** (`scripts/build.sh`)
- Auto-detects platform (Linux/macOS/Windows)
- Uses appropriate build flags for each platform
- Windows-specific: `-ldflags="-H windowsgui -s -w"`
- `-H windowsgui`: Hide console window for GUI app
- `-s -w`: Strip debug symbols for smaller binary
### 2. **Console Window Hiding** (`internal/utils/`)
Added platform-specific utilities to hide FFmpeg/FFprobe console windows on Windows:
**`internal/utils/proc_windows.go`:**
```go
//go:build windows
package utils
import (
"os/exec"
"syscall"
)
// ApplyNoWindow hides the console window for spawned processes on Windows.
func ApplyNoWindow(cmd *exec.Cmd) {
if cmd == nil {
return
}
cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
}
```
**`internal/utils/proc_other.go`:**
```go
//go:build !windows
package utils
import "os/exec"
// ApplyNoWindow is a no-op on non-Windows platforms.
func ApplyNoWindow(cmd *exec.Cmd) {
_ = cmd
}
```
### 3. **FFmpeg Integration**
VT_Player shares FFmpeg with VideoTools on Windows. If you've already installed VideoTools on Windows 11:
- FFmpeg and ffprobe are already on your PATH
- VT_Player will use the same binaries
- No additional FFmpeg installation needed
---
## Building on Windows 11
### Prerequisites
From your VideoTools setup, you should already have:
- ✅ Go 1.21+ (`go version` to check)
- ✅ MinGW-w64 (for CGO compilation)
- ✅ FFmpeg on PATH
- ✅ Git Bash or MSYS2
### Build Process
1. **Open Git Bash** (or MSYS2)
2. **Navigate to VT_Player:**
```bash
cd /path/to/VT_Player
```
3. **Run the build script:**
```bash
./scripts/build.sh
```
4. **Expected output:**
```
════════════════════════════════════════════════════════════════
VT_Player Universal Build Script
════════════════════════════════════════════════════════════════
🔍 Detected platform: Windows
📦 Go version:
go version go1.21.x windows/amd64
🧹 Cleaning previous builds...
✓ Cache cleaned
⬇️ Downloading dependencies...
✓ Dependencies downloaded
🔨 Building VT_Player for Windows...
✓ Build successful!
════════════════════════════════════════════════════════════════
✅ BUILD COMPLETE
════════════════════════════════════════════════════════════════
Output: vt_player.exe
Size: ~45M
✓ FFmpeg detected on PATH
Ready to run:
.\vt_player.exe
```
5. **Run VT_Player:**
```bash
./vt_player.exe
```
---
## Shared Dependencies with VideoTools
VT_Player and VideoTools share the same dependencies on Windows:
| Dependency | Purpose | Shared? |
|------------|---------|---------|
| **Go 1.21+** | Compilation | ✅ Yes |
| **MinGW-w64** | CGO for Fyne | ✅ Yes |
| **FFmpeg** | Video processing | ✅ Yes (same PATH) |
| **FFprobe** | Metadata extraction | ✅ Yes (same PATH) |
### Why This Works
Both projects:
- Use the same Fyne GUI framework
- Use the same video processing tools (FFmpeg)
- Use the same build toolchain (Go + MinGW)
- Are designed to be portable on Windows
The only difference is the executable name and specific features.
---
## Differences from VideoTools
### What VT_Player Does NOT Include:
- ❌ Conversion queue system
- ❌ Format conversion UI
- ❌ Batch processing
- ❌ DVD authoring
### What VT_Player DOES Include:
- ✅ Frame-accurate playback
- ✅ Keyframe detection and navigation
- ✅ Timeline widget with visual keyframe markers
- ✅ Frame-by-frame stepping
- ✅ Keyframe jumping
- ✅ Lossless cutting (upcoming)
VT_Player is focused exclusively on video playback and frame-accurate editing.
---
## Troubleshooting
### "FFmpeg not found on PATH"
If the build completes but shows FFmpeg warning:
1. Check if VideoTools FFmpeg is on PATH:
```bash
where ffmpeg
where ffprobe
```
2. If not found, add VideoTools FFmpeg to PATH:
```powershell
# In PowerShell as Administrator
$env:Path += ";C:\path\to\VideoTools\dist\windows"
```
3. Or copy FFmpeg from VideoTools:
```bash
cp /c/path/to/VideoTools/dist/windows/ffmpeg.exe .
cp /c/path/to/VideoTools/dist/windows/ffprobe.exe .
```
### "go.exe not found"
Ensure Go is installed and on PATH:
```bash
go version
```
If not found, reinstall Go from https://go.dev/dl/
### "x86_64-w64-mingw32-gcc not found"
MinGW-w64 is required for CGO. If VideoTools builds successfully, MinGW is already installed.
Check with:
```bash
x86_64-w64-mingw32-gcc --version
```
### Build Succeeds but App Crashes
1. Check FFmpeg availability:
```bash
ffmpeg -version
ffprobe -version
```
2. Run with debug output:
```bash
# Set debug environment variable
export VIDEOTOOLS_DEBUG=1
./vt_player.exe
```
3. Check logs in current directory for errors
---
## Platform-Specific Build Flags
### Windows (`-ldflags="-H windowsgui -s -w"`)
- `-H windowsgui`: Create GUI app (no console window)
- `-s`: Strip symbol table
- `-w`: Strip DWARF debugging info
- Result: Smaller binary, cleaner UX
### Linux/macOS
- Standard build flags
- Console output available for debugging
- No special GUI flags needed
---
## File Structure After Build
```
VT_Player/
├── vt_player.exe # Windows executable (~45MB)
├── scripts/
│ └── build.sh # Universal build script
├── internal/
│ └── utils/
│ ├── proc_windows.go # Windows console hiding
│ └── proc_other.go # Linux/macOS no-op
└── ... (source files)
```
---
## Next Steps After Successful Build
1. **Test basic playback:**
- Drag and drop a video file onto VT_Player
- Verify it loads and plays
2. **Enable Frame-Accurate Mode:**
- Tools → Frame-Accurate Mode
- Load a video
- Verify keyframes are detected and shown on timeline
3. **Test frame navigation:**
- Left/Right arrows: Step by frame
- Up/Down arrows: Jump between keyframes
- Space: Play/pause
---
## Reporting Issues
If you encounter Windows-specific issues:
1. Check if the same issue occurs in VideoTools
2. Verify FFmpeg is on PATH and working
3. Run with `VIDEOTOOLS_DEBUG=1` for detailed logs
4. Report with:
- Windows version (should be Windows 11)
- Go version
- FFmpeg version
- Error messages
- Build log
---
## Summary
VT_Player on Windows 11 should "just work" if VideoTools is already working:
- ✅ Same build environment
- ✅ Same dependencies
- ✅ Same FFmpeg installation
- ✅ Auto-detecting build script
- ✅ Console windows hidden for clean UX
The universal build script handles all platform differences automatically.

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//go:build !windows
package utils
import "os/exec"
// ApplyNoWindow is a no-op on non-Windows platforms.
func ApplyNoWindow(cmd *exec.Cmd) {
_ = cmd
}

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//go:build windows
package utils
import (
"os/exec"
"syscall"
)
// ApplyNoWindow hides the console window for spawned processes on Windows.
func ApplyNoWindow(cmd *exec.Cmd) {
if cmd == nil {
return
}
cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
}

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#!/bin/bash
# VT_Player Build Script
# Cleans dependencies and builds the application with proper error handling
set -e
PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
BUILD_OUTPUT="$PROJECT_ROOT/vt_player"
echo "════════════════════════════════════════════════════════════════"
echo " VT_Player Build Script"
echo "════════════════════════════════════════════════════════════════"
echo ""
# Check if go is installed
if ! command -v go &> /dev/null; then
echo "❌ ERROR: Go is not installed. Please install Go 1.21 or later."
exit 1
fi
echo "📦 Go version:"
go version
echo ""
# Change to project directory
cd "$PROJECT_ROOT"
echo "🧹 Cleaning previous builds and cache..."
go clean -cache -modcache -testcache 2>/dev/null || true
rm -f "$BUILD_OUTPUT" 2>/dev/null || true
echo "✓ Cache cleaned"
echo ""
echo "⬇️ Downloading and verifying dependencies..."
go mod download
go mod verify
echo "✓ Dependencies verified"
echo ""
echo "🔨 Building VT_Player..."
# Fyne needs cgo for GLFW/OpenGL bindings; build with CGO enabled.
export CGO_ENABLED=1
if go build -o "$BUILD_OUTPUT" .; then
echo "✓ Build successful!"
echo ""
echo "════════════════════════════════════════════════════════════════"
echo "✅ BUILD COMPLETE"
echo "════════════════════════════════════════════════════════════════"
echo ""
echo "Output: $BUILD_OUTPUT"
echo "Size: $(du -h "$BUILD_OUTPUT" | cut -f1)"
echo ""
echo "To run:"
echo " $PROJECT_ROOT/vt_player"
echo ""
echo "Or use the convenience script:"
echo " source $PROJECT_ROOT/scripts/alias.sh"
echo " vt_player"
echo ""
else
echo "❌ Build failed!"
exit 1
fi

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scripts/build.sh
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#!/bin/bash
# VT Player Build Script
# Cleans dependencies and builds the application with proper error handling
# VT_Player Universal Build Script
# Auto-detects platform and builds accordingly
set -e
PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
BUILD_OUTPUT="$PROJECT_ROOT/VTPlayer"
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
echo "════════════════════════════════════════════════════════════════"
echo " VT Player Build Script"
echo " VT_Player Universal Build Script"
echo "════════════════════════════════════════════════════════════════"
echo ""
# Detect platform
PLATFORM="$(uname -s)"
case "${PLATFORM}" in
Linux*)
OS="Linux"
;;
Darwin*)
OS="macOS"
;;
CYGWIN*|MINGW*|MSYS*)
OS="Windows"
;;
*)
echo "❌ Unknown platform: ${PLATFORM}"
exit 1
;;
esac
echo "🔍 Detected platform: $OS"
echo ""
# Check if go is installed
if ! command -v go &> /dev/null; then
echo "❌ ERROR: Go is not installed. Please install Go 1.21 or later."
echo ""
echo "Download from: https://go.dev/dl/"
exit 1
fi
@ -22,42 +45,80 @@ echo "📦 Go version:"
go version
echo ""
# Change to project directory
cd "$PROJECT_ROOT"
# Route to appropriate build script
case "$OS" in
Linux)
echo "→ Building for Linux..."
echo ""
exec "$SCRIPT_DIR/build-linux.sh"
;;
echo "🧹 Cleaning previous builds and cache..."
go clean -cache -modcache -testcache 2>/dev/null || true
rm -f "$BUILD_OUTPUT" 2>/dev/null || true
echo "✓ Cache cleaned"
echo ""
macOS)
echo "→ Building for macOS..."
echo ""
# macOS uses same build process as Linux (native build)
exec "$SCRIPT_DIR/build-linux.sh"
;;
echo "⬇️ Downloading and verifying dependencies..."
go mod download
go mod verify
echo "✓ Dependencies verified"
echo ""
Windows)
echo "→ Building for Windows..."
echo ""
echo "🔨 Building VT Player..."
# Fyne needs cgo for GLFW/OpenGL bindings; build with CGO enabled.
export CGO_ENABLED=1
if go build -o "$BUILD_OUTPUT" .; then
echo "✓ Build successful!"
echo ""
echo "════════════════════════════════════════════════════════════════"
echo "✅ BUILD COMPLETE"
echo "════════════════════════════════════════════════════════════════"
echo ""
echo "Output: $BUILD_OUTPUT"
echo "Size: $(du -h "$BUILD_OUTPUT" | cut -f1)"
echo ""
echo "To run:"
echo " $PROJECT_ROOT/VTPlayer"
echo ""
echo "Or use the convenience script:"
echo " source $PROJECT_ROOT/scripts/alias.sh"
echo " VTPlayer"
echo ""
else
echo "❌ Build failed!"
exit 1
fi
# Check if running in Git Bash or similar
if command -v go.exe &> /dev/null; then
# Windows native build
cd "$PROJECT_ROOT"
echo "🧹 Cleaning previous builds..."
rm -f vt_player.exe VTPlayer.exe 2>/dev/null || true
echo "✓ Cache cleaned"
echo ""
echo "⬇️ Downloading dependencies..."
go mod download
echo "✓ Dependencies downloaded"
echo ""
echo "🔨 Building VT_Player for Windows..."
export CGO_ENABLED=1
# Build with Windows GUI flags
if go build -ldflags="-H windowsgui -s -w" -o vt_player.exe .; then
echo "✓ Build successful!"
echo ""
echo "════════════════════════════════════════════════════════════════"
echo "✅ BUILD COMPLETE"
echo "════════════════════════════════════════════════════════════════"
echo ""
echo "Output: vt_player.exe"
if [ -f "vt_player.exe" ]; then
SIZE=$(du -h vt_player.exe 2>/dev/null | cut -f1 || echo "unknown")
echo "Size: $SIZE"
fi
echo ""
if ffmpeg -version >/dev/null 2>&1 && ffprobe -version >/dev/null 2>&1; then
echo "✓ FFmpeg detected on PATH"
echo ""
echo "Ready to run:"
echo " .\\vt_player.exe"
else
echo "⚠️ FFmpeg not detected on PATH"
echo ""
echo "VT_Player requires FFmpeg. Please install it:"
echo " 1. Download from: https://ffmpeg.org/download.html"
echo " 2. Add to PATH"
echo " Or if VideoTools is installed, FFmpeg should already be available."
fi
else
echo "❌ Build failed!"
exit 1
fi
else
echo "❌ ERROR: go.exe not found."
echo "Please ensure Go is properly installed on Windows."
echo "Download from: https://go.dev/dl/"
exit 1
fi
;;
esac