forked from Leak_Technologies/VideoTools
Add comprehensive Integration Guide for DVD support
Complete step-by-step integration guide for incorporating DVD-NTSC
encoding and queue system improvements into main.go.
Includes:
- Overview of new DVD encoding package
- Five key integration points with code examples
- UI component examples (DVD options panel)
- Validation implementation
- FFmpeg command generation integration
- Data flow diagrams
- Configuration examples
- Quick start integration steps
- Verification checklist
- Enhancement ideas for next phase
- Troubleshooting guide
Maintains backward compatibility with existing formats while
adding professional DVD authoring capabilities.
🤖 Generated with Claude Code
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INTEGRATION_GUIDE.md
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INTEGRATION_GUIDE.md
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# VideoTools Integration Guide - DVD Support & Queue System
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## 📋 Executive Summary
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This guide explains how to integrate the newly implemented **DVD-NTSC encoding system** with the **queue-based batch processing system** in VideoTools.
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**Status:** ✅ Both systems are complete, tested, and ready for integration.
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---
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## 🎯 What's New
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### 1. **DVD-NTSC Encoding Package** ✨
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Location: `internal/convert/`
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**Provides:**
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- MPEG-2 video encoding (720×480 @ 29.97fps)
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- AC-3 Dolby Digital audio (48 kHz stereo)
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- Multi-region support (NTSC, PAL, SECAM)
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- Comprehensive validation system
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- FFmpeg command generation
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**Key Files:**
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- `types.go` - VideoSource, ConvertConfig, FormatOption types
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- `ffmpeg.go` - Codec mapping, video probing
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- `dvd.go` - NTSC-specific encoding and validation
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- `dvd_regions.go` - PAL, SECAM, and multi-region support
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- `presets.go` - Output format definitions
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### 2. **Queue System** (Already Integrated)
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Location: `internal/queue/queue.go`
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**Provides:**
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- Job management and prioritization
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- Pause/resume capabilities
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- Real-time progress tracking
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- Thread-safe operations
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- JSON persistence
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---
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## 🔌 Integration Points
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### Point 1: Format Selection UI
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**Current State (main.go, line ~1394):**
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```go
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var formatLabels []string
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for _, opt := range formatOptions { // Hardcoded in main.go
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formatLabels = append(formatLabels, opt.Label)
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}
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formatSelect := widget.NewSelect(formatLabels, func(value string) {
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for _, opt := range formatOptions {
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if opt.Label == value {
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state.convert.SelectedFormat = opt
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outputHint.SetText(fmt.Sprintf("Output file: %s", state.convert.OutputFile()))
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break
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}
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}
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})
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```
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**After Integration:**
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```go
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// Import the convert package
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import "git.leaktechnologies.dev/stu/VideoTools/internal/convert"
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// Use FormatOptions from convert package
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var formatLabels []string
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for _, opt := range convert.FormatOptions {
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formatLabels = append(formatLabels, opt.Label)
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}
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formatSelect := widget.NewSelect(formatLabels, func(value string) {
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for _, opt := range convert.FormatOptions {
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if opt.Label == value {
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state.convert.SelectedFormat = opt
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outputHint.SetText(fmt.Sprintf("Output file: %s", state.convert.OutputFile()))
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// NEW: Show DVD-specific options if DVD selected
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if opt.Ext == ".mpg" {
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showDVDOptions(state) // New function
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}
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break
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}
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}
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})
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```
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### Point 2: DVD-Specific Options Panel
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**New UI Component (main.go, after format selection):**
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```go
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func showDVDOptions(state *appState) {
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// Show DVD-specific controls only when DVD format selected
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dvdPanel := container.NewVBox(
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// Aspect ratio selector
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widget.NewLabel("Aspect Ratio:"),
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widget.NewSelect([]string{"4:3", "16:9"}, func(val string) {
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state.convert.OutputAspect = val
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}),
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// Interlacing mode
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widget.NewLabel("Interlacing:"),
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widget.NewSelect([]string{"Auto-detect", "Progressive", "Interlaced"}, func(val string) {
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// Store selection
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}),
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// Region selector
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widget.NewLabel("Region:"),
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widget.NewSelect([]string{"NTSC", "PAL", "SECAM"}, func(val string) {
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// Switch region presets
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var region convert.DVDRegion
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switch val {
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case "NTSC":
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region = convert.DVDNTSCRegionFree
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case "PAL":
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region = convert.DVDPALRegionFree
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case "SECAM":
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region = convert.DVDSECAMRegionFree
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}
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cfg := convert.PresetForRegion(region)
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state.convert = cfg // Update config
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}),
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)
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// Add to UI
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}
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```
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### Point 3: Validation Before Queue
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**Current State (main.go, line ~499):**
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```go
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func (s *appState) addConvertToQueue() error {
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if !s.hasSource() {
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return fmt.Errorf("no source video selected")
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}
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// ... build config and add to queue
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}
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```
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**After Integration:**
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```go
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func (s *appState) addConvertToQueue() error {
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if !s.hasSource() {
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return fmt.Errorf("no source video selected")
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}
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// NEW: Validate if DVD format selected
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if s.convert.SelectedFormat.Ext == ".mpg" {
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warnings := convert.ValidateDVDNTSC(s.source, s.convert)
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// Show warnings dialog
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if len(warnings) > 0 {
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var warningText strings.Builder
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warningText.WriteString("DVD Encoding Validation:\n\n")
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for _, w := range warnings {
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warningText.WriteString(fmt.Sprintf("[%s] %s\n", w.Severity, w.Message))
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warningText.WriteString(fmt.Sprintf("Action: %s\n\n", w.Action))
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}
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dialog.ShowInformation("DVD Validation", warningText.String(), s.window)
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}
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}
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// ... continue with queue addition
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}
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```
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### Point 4: FFmpeg Command Building
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**Current State (main.go, line ~810):**
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```go
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// Build FFmpeg arguments (existing complex logic)
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args := []string{
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"-y",
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"-hide_banner",
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// ... 180+ lines of filter and codec logic
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}
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```
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**After Integration (simplified):**
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```go
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func (s *appState) executeConvertJob(ctx context.Context, job *queue.Job, progressCallback func(float64)) error {
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cfg := job.Config
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inputPath := cfg["inputPath"].(string)
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outputPath := cfg["outputPath"].(string)
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// NEW: Use convert package for DVD
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if fmt.Sprintf("%v", cfg["selectedFormat"]) == ".mpg" {
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// Get video source info
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src, err := convert.ProbeVideo(inputPath)
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if err != nil {
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return err
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}
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// Get config from job
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convertCfg := s.convert // Already validated
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// Use convert package to build args
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args := convert.BuildDVDFFmpegArgs(inputPath, outputPath, convertCfg, src)
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// Execute FFmpeg...
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return s.executeFFmpeg(args, progressCallback)
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}
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// Fall back to existing logic for non-DVD formats
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// ... existing code
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}
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```
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### Point 5: Job Configuration
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**Updated Job Creation (main.go, line ~530):**
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```go
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job := &queue.Job{
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Type: queue.JobTypeConvert,
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Title: fmt.Sprintf("Convert: %s", s.source.DisplayName),
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InputFile: s.source.Path,
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OutputFile: s.convert.OutputFile(),
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Config: map[string]interface{}{
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// Existing fields...
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"inputPath": s.source.Path,
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"outputPath": s.convert.OutputFile(),
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"selectedFormat": s.convert.SelectedFormat,
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"videoCodec": s.convert.VideoCodec,
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"audioCodec": s.convert.AudioCodec,
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"videoBitrate": s.convert.VideoBitrate,
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"audioBitrate": s.convert.AudioBitrate,
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"targetResolution": s.convert.TargetResolution,
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"frameRate": s.convert.FrameRate,
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// NEW: DVD-specific info
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"isDVD": s.convert.SelectedFormat.Ext == ".mpg",
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"aspect": s.convert.OutputAspect,
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"dvdRegion": "NTSC", // Or PAL/SECAM
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},
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Priority: 5,
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}
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s.jobQueue.Add(job)
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```
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---
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## 📊 Type Definitions to Export
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Currently in `internal/convert/types.go`, these need to remain accessible within main.go:
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```go
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// VideoSource - metadata about video file
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type VideoSource struct { ... }
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// ConvertConfig - encoding configuration
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type ConvertConfig struct { ... }
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// FormatOption - output format definition
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type FormatOption struct { ... }
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```
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**Import in main.go:**
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```go
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import "git.leaktechnologies.dev/stu/VideoTools/internal/convert"
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// Then reference as:
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// convert.VideoSource
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// convert.ConvertConfig
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// convert.FormatOption
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```
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---
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## 🧪 Integration Checklist
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- [ ] **Import convert package** in main.go
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```go
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import "git.leaktechnologies.dev/stu/VideoTools/internal/convert"
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```
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- [ ] **Update format selection**
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- Replace `formatOptions` with `convert.FormatOptions`
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- Add DVD option to dropdown
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- [ ] **Add DVD options panel**
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- Aspect ratio selector (4:3, 16:9)
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- Region selector (NTSC, PAL, SECAM)
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- Interlacing mode selector
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- [ ] **Implement validation**
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- Call `convert.ValidateDVDNTSC()` when DVD selected
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- Show warnings dialog before queueing
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- [ ] **Update FFmpeg execution**
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- Use `convert.BuildDVDFFmpegArgs()` for .mpg files
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- Keep existing logic for other formats
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- [ ] **Test with sample videos**
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- Generate test .mpg from AVI/MOV/MP4
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- Verify DVDStyler can import without re-encoding
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- Test playback on PS2 or DVD player
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- [ ] **Verify queue integration**
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- Create multi-video DVD job batch
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- Test pause/resume with DVD jobs
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- Test progress tracking
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---
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## 🔄 Data Flow Diagram
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```
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User Interface (main.go)
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│
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├─→ Select "DVD-NTSC (MPEG-2)" format
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│ │
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│ └─→ Show DVD options (aspect, region, etc.)
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│
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├─→ Click "Add to Queue"
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│ │
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│ ├─→ Call convert.ValidateDVDNTSC(video, config)
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│ │ └─→ Return warnings/validation status
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│ │
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│ └─→ Create Job with config
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│ └─→ queue.Add(job)
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│
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├─→ Queue displays job
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│ │
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│ └─→ User clicks "Start Queue"
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│ │
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│ ├─→ queue.Start()
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│ │
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│ └─→ For each job:
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│ │
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│ ├─→ convert.ProbeVideo(inputPath)
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│ │ └─→ Return VideoSource
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│ │
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│ ├─→ convert.BuildDVDFFmpegArgs(...)
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│ │ └─→ Return command args
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│ │
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│ └─→ Execute FFmpeg
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│ └─→ Update job.Progress
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│
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└─→ Queue Viewer UI
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│
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└─→ Display progress
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- Job status
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- Progress %
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- Pause/Resume buttons
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- Cancel button
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```
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---
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## 💾 Configuration Example
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### Full DVD-NTSC Job Configuration
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```json
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{
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"id": "job-dvd-001",
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"type": "convert",
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"title": "Convert to DVD-NTSC: movie.mp4",
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"input_file": "movie.mp4",
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"output_file": "movie.mpg",
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"config": {
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"inputPath": "movie.mp4",
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"outputPath": "movie.mpg",
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"selectedFormat": {
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"Label": "DVD-NTSC (MPEG-2)",
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"Ext": ".mpg",
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"VideoCodec": "mpeg2video"
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},
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"isDVD": true,
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"quality": "Standard (CRF 23)",
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"videoCodec": "MPEG-2",
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"videoBitrate": "6000k",
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"targetResolution": "720x480",
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"frameRate": "29.97",
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"audioCodec": "AC-3",
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"audioBitrate": "192k",
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"audioChannels": "Stereo",
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"aspect": "16:9",
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"dvdRegion": "NTSC",
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"dvdValidationWarnings": [
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{
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"severity": "info",
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"message": "Input is 1920x1080, will scale to 720x480",
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"action": "Will apply letterboxing to preserve 16:9 aspect"
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}
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]
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},
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"priority": 5,
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"status": "pending",
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"created_at": "2025-11-29T12:00:00Z"
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}
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```
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|
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||||||
|
---
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||||||
|
|
||||||
|
## 🚀 Quick Start Integration
|
||||||
|
|
||||||
|
### Step 1: Add Import
|
||||||
|
```go
|
||||||
|
// At top of main.go
|
||||||
|
import (
|
||||||
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// ... existing imports
|
||||||
|
"git.leaktechnologies.dev/stu/VideoTools/internal/convert"
|
||||||
|
)
|
||||||
|
```
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||||||
|
|
||||||
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### Step 2: Replace Format Options
|
||||||
|
```go
|
||||||
|
// OLD (around line 1394)
|
||||||
|
var formatLabels []string
|
||||||
|
for _, opt := range formatOptions {
|
||||||
|
formatLabels = append(formatLabels, opt.Label)
|
||||||
|
}
|
||||||
|
|
||||||
|
// NEW
|
||||||
|
var formatLabels []string
|
||||||
|
for _, opt := range convert.FormatOptions {
|
||||||
|
formatLabels = append(formatLabels, opt.Label)
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Step 3: Add DVD Validation
|
||||||
|
```go
|
||||||
|
// In addConvertToQueue() function
|
||||||
|
if s.convert.SelectedFormat.Ext == ".mpg" {
|
||||||
|
warnings := convert.ValidateDVDNTSC(s.source, s.convert)
|
||||||
|
// Show warnings if any
|
||||||
|
if len(warnings) > 0 {
|
||||||
|
// Display warning dialog
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Step 4: Use Convert Package for FFmpeg Args
|
||||||
|
```go
|
||||||
|
// In executeConvertJob()
|
||||||
|
if s.convert.SelectedFormat.Ext == ".mpg" {
|
||||||
|
src, _ := convert.ProbeVideo(inputPath)
|
||||||
|
args := convert.BuildDVDFFmpegArgs(inputPath, outputPath, s.convert, src)
|
||||||
|
} else {
|
||||||
|
// Use existing logic for other formats
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## ✅ Verification Checklist
|
||||||
|
|
||||||
|
After integration, verify:
|
||||||
|
|
||||||
|
- [ ] **Build succeeds**: `go build .`
|
||||||
|
- [ ] **Imports resolve**: No import errors in IDE
|
||||||
|
- [ ] **Format selector shows**: "DVD-NTSC (MPEG-2)" option
|
||||||
|
- [ ] **DVD options appear**: When DVD format selected
|
||||||
|
- [ ] **Validation works**: Warnings shown for incompatible inputs
|
||||||
|
- [ ] **Queue accepts jobs**: DVD jobs can be added
|
||||||
|
- [ ] **FFmpeg executes**: Without errors
|
||||||
|
- [ ] **Progress updates**: In real-time
|
||||||
|
- [ ] **Output generated**: .mpg file created
|
||||||
|
- [ ] **DVDStyler imports**: Without re-encoding warning
|
||||||
|
- [ ] **Playback works**: On DVD player or PS2 emulator
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## 🎯 Next Phase: Enhancement Ideas
|
||||||
|
|
||||||
|
Once integration is complete, consider:
|
||||||
|
|
||||||
|
1. **DVD Menu Support**
|
||||||
|
- Simple menu generation
|
||||||
|
- Chapter selection
|
||||||
|
- Thumbnail previews
|
||||||
|
|
||||||
|
2. **Batch Region Conversion**
|
||||||
|
- Convert same video to NTSC/PAL/SECAM in one batch
|
||||||
|
- Auto-detect region from source
|
||||||
|
|
||||||
|
3. **Preset Management**
|
||||||
|
- Save custom DVD presets
|
||||||
|
- Share presets between users
|
||||||
|
|
||||||
|
4. **Advanced Validation**
|
||||||
|
- Check minimum file size
|
||||||
|
- Estimate disc usage
|
||||||
|
- Warn about audio track count
|
||||||
|
|
||||||
|
5. **CLI Integration**
|
||||||
|
- `videotools dvd-encode input.mp4 output.mpg --region PAL`
|
||||||
|
- Batch encoding from command line
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## 📚 Reference Documents
|
||||||
|
|
||||||
|
- **[DVD_IMPLEMENTATION_SUMMARY.md](./DVD_IMPLEMENTATION_SUMMARY.md)** - Detailed DVD feature documentation
|
||||||
|
- **[QUEUE_SYSTEM_GUIDE.md](./QUEUE_SYSTEM_GUIDE.md)** - Complete queue system reference
|
||||||
|
- **[README.md](./README.md)** - Main project overview
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## 🆘 Troubleshooting
|
||||||
|
|
||||||
|
### Issue: "undefined: convert" in main.go
|
||||||
|
**Solution:** Add import statement at top of main.go
|
||||||
|
```go
|
||||||
|
import "git.leaktechnologies.dev/stu/VideoTools/internal/convert"
|
||||||
|
```
|
||||||
|
|
||||||
|
### Issue: formatOption not found
|
||||||
|
**Solution:** Replace with convert.FormatOption
|
||||||
|
```go
|
||||||
|
// Use:
|
||||||
|
opt := convert.FormatOption{...}
|
||||||
|
// Not:
|
||||||
|
opt := formatOption{...}
|
||||||
|
```
|
||||||
|
|
||||||
|
### Issue: ConvertConfig fields missing
|
||||||
|
**Solution:** Update main.go convertConfig to use convert.ConvertConfig
|
||||||
|
|
||||||
|
### Issue: FFmpeg command not working
|
||||||
|
**Solution:** Verify convert.BuildDVDFFmpegArgs() is called instead of manual arg building
|
||||||
|
|
||||||
|
### Issue: Queue jobs not showing progress
|
||||||
|
**Solution:** Ensure progressCallback is called in executeConvertJob
|
||||||
|
```go
|
||||||
|
progressCallback(percentComplete) // Must be called regularly
|
||||||
|
```
|
||||||
|
|
||||||
|
---
|
||||||
|
|
||||||
|
## ✨ Summary
|
||||||
|
|
||||||
|
The VideoTools project now has:
|
||||||
|
|
||||||
|
1. ✅ **Complete DVD-NTSC encoding system** (internal/convert/)
|
||||||
|
2. ✅ **Fully functional queue system** (internal/queue/)
|
||||||
|
3. ✅ **Integration points identified** (this guide)
|
||||||
|
4. ✅ **Comprehensive documentation** (multiple guides)
|
||||||
|
|
||||||
|
**Next step:** Integrate these components into main.go following this guide.
|
||||||
|
|
||||||
|
The integration is straightforward and maintains backward compatibility with existing video formats.
|
||||||
Loading…
Reference in New Issue
Block a user