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+# Video Studio Feature Analysis & Implementation Plan
+
+## 1. Transform Studio - AI Model Documentation Review
+
+### ✅ Phase 1 Complete (FFmpeg Features)
+- Format Conversion (MP4, MOV, WebM, GIF)
+- Aspect Ratio Conversion (16:9, 9:16, 1:1, 4:5, 21:9)
+- Speed Adjustment (0.25x - 4x)
+- Resolution Scaling (480p - 4K)
+- Compression (File size optimization)
+
+### ⚠️ Phase 2 Pending (Style Transfer - Needs Documentation)
+
+**Required AI Models for Style Transfer:**
+
+1. **WAN 2.1 Ditto** - Video-to-Video Restyle
+   - Model: `wavespeed-ai/wan-2.1/ditto`
+   - Purpose: Apply artistic styles to videos
+   - Status: ⚠️ **Documentation needed**
+   - Documentation Requirements:
+     - API endpoint URL
+     - Input parameters (video, style prompt, style reference image)
+     - Output format and metadata
+     - Pricing structure
+     - Supported resolutions (480p, 720p, 1080p?)
+     - Duration limits
+     - Use cases and best practices
+   - WaveSpeed Link: Need to verify/find
+
+2. **WAN 2.1 Synthetic-to-Real Ditto**
+   - Model: `wavespeed-ai/wan-2.1/synthetic-to-real-ditto`
+   - Purpose: Convert AI-generated videos to realistic style
+   - Status: ⚠️ **Documentation needed**
+   - Documentation Requirements: Same as above
+
+**Optional Models (Future):**
+- `mirelo-ai/sfx-v1.5/video-to-video` - Alternative style transfer
+- `decart/lucy-edit-pro` - Advanced editing and style transfer
+
+---
+
+## 2. Face Swap Feature Analysis
+
+### Current Status: ⚠️ **Partially Implemented (Stub)**
+
+**Backend Code Found:**
+- `backend/routers/video_studio/endpoints/avatar.py` - Endpoint accepts `video_file` parameter for face swap
+- `backend/services/video_studio/video_studio_service.py` - `generate_avatar_video()` method references face swap
+- Model mapping: `"wavespeed/mocha": "wavespeed/mocha/face-swap"`
+
+**Issues Found:**
+- ❌ `WaveSpeedClient.generate_video()` method **DOES NOT EXIST**
+- ❌ Face swap functionality is **NOT IMPLEMENTED**
+- ⚠️ Code structure exists but calls non-existent method
+
+**Documentation References:**
+- Comprehensive Plan mentions: `wavespeed-ai/wan-2.1/mocha` (face swap)
+- Model catalog lists: `wavespeed-ai/wan-2.1/mocha`, `wavespeed-ai/video-face-swap`
+
+**Required Documentation:**
+1. **WAN 2.1 MoCha Face Swap**
+   - Model: `wavespeed-ai/wan-2.1/mocha` or `wavespeed-ai/wan-2.1/mocha/face-swap`
+   - Purpose: Swap faces in videos
+   - Documentation needed:
+     - API endpoint
+     - Input parameters (source video, face image, optional mask)
+     - Output format
+     - Pricing
+     - Supported resolutions/durations
+     - Face detection requirements
+     - Best practices
+
+2. **Video Face Swap (Alternative)**
+   - Model: `wavespeed-ai/video-face-swap` (if different from MoCha)
+   - Documentation: Same as above
+
+**Recommendation:**
+- Face swap should be part of **Edit Studio** (not Avatar Studio)
+- Avatar Studio is for talking avatars (photo + audio → talking video)
+- Face swap is for replacing faces in existing videos (video + face image → swapped video)
+
+---
+
+## 3. Video Translation Feature Analysis
+
+### Current Status: ⚠️ **Partially Implemented (Stub)**
+
+**Backend Code Found:**
+- `backend/services/video_studio/video_studio_service.py` - References `heygen/video-translate`
+- Model mapping: `"heygen/video-translate": "heygen/video-translate"`
+- Listed in available models but **NOT IMPLEMENTED**
+
+**Documentation References:**
+- Comprehensive Plan mentions: `heygen/video-translate` (dubbing/translation)
+- Model catalog lists: Audio/foley/dubbing models
+
+**Required Documentation:**
+1. **HeyGen Video Translate**
+   - Model: `heygen/video-translate`
+   - Purpose: Translate video language with lip-sync
+   - Documentation needed:
+     - API endpoint
+     - Input parameters (video, source language, target language)
+     - Output format
+     - Pricing
+     - Supported languages
+     - Duration limits
+     - Lip-sync quality
+     - Best practices
+
+**Alternative Models (If HeyGen not available):**
+- `wavespeed-ai/hunyuan-video-foley` - Audio generation
+- `wavespeed-ai/think-sound` - Audio generation
+- May need separate translation service + audio generation
+
+**Recommendation:**
+- Video translation should be part of **Edit Studio** or a separate **Localization Studio**
+- Could be integrated with Avatar Studio for multilingual avatar videos
+- Consider workflow: Video → Translate Audio → Generate Lip-Sync → Output
+
+---
+
+## 4. Social Optimizer Implementation Plan
+
+### Overview
+Social Optimizer creates platform-optimized versions of videos for Instagram, TikTok, YouTube, LinkedIn, Facebook, and Twitter.
+
+### Features to Implement
+
+#### Core Features (FFmpeg-based - Can Start Immediately):
+
+1. **Platform Presets**
+   - Instagram Reels (9:16, max 90s)
+   - TikTok (9:16, max 60s)
+   - YouTube Shorts (9:16, max 60s)
+   - LinkedIn Video (16:9, max 10min)
+   - Facebook (16:9 or 1:1, max 240s)
+   - Twitter/X (16:9, max 140s)
+
+2. **Aspect Ratio Conversion**
+   - Auto-crop to platform ratio (reuse Transform Studio logic)
+   - Smart cropping (center, face detection)
+   - Letterboxing/pillarboxing
+
+3. **Duration Trimming**
+   - Auto-trim to platform max duration
+   - Smart trimming (keep beginning, middle, or end)
+   - User-selectable trim points
+
+4. **File Size Optimization**
+   - Compress to meet platform limits
+   - Quality presets per platform
+   - Bitrate optimization
+
+5. **Thumbnail Generation**
+   - Extract frame from video (FFmpeg)
+   - Generate multiple thumbnails (start, middle, end)
+   - Custom thumbnail selection
+
+#### Advanced Features (May Need AI):
+
+6. **Caption Overlay**
+   - Auto-caption generation (speech-to-text)
+   - Platform-specific caption styles
+   - Safe zone overlays
+
+7. **Safe Zone Visualization**
+   - Show text-safe areas per platform
+   - Visual overlay in preview
+   - Platform-specific guidelines
+
+### Implementation Strategy
+
+**Phase 1: Core Features (FFmpeg)**
+- Platform presets and aspect ratio conversion
+- Duration trimming
+- File size compression
+- Basic thumbnail generation
+- Batch export for multiple platforms
+
+**Phase 2: Advanced Features**
+- Caption overlay (may need speech-to-text API)
+- Safe zone visualization
+- Enhanced thumbnail generation
+
+### Technical Approach
+
+**Backend:**
+- Reuse `video_processors.py` from Transform Studio
+- Create `social_optimizer_service.py`
+- Platform specifications (aspect ratios, durations, file size limits)
+- Batch processing for multiple platforms
+
+**Frontend:**
+- Platform selection checkboxes
+- Preview grid showing all platform versions
+- Individual download or batch download
+- Progress tracking for batch operations
+
+### Platform Specifications
+
+| Platform | Aspect Ratio | Max Duration | Max File Size | Formats |
+|----------|--------------|--------------|---------------|---------|
+| Instagram Reels | 9:16 | 90s | 4GB | MP4 |
+| TikTok | 9:16 | 60s | 287MB | MP4, MOV |
+| YouTube Shorts | 9:16 | 60s | 256GB | MP4, MOV, WebM |
+| LinkedIn | 16:9, 1:1 | 10min | 5GB | MP4 |
+| Facebook | 16:9, 1:1 | 240s | 4GB | MP4, MOV |
+| Twitter/X | 16:9 | 140s | 512MB | MP4 |
+
+---
+
+## Summary & Recommendations
+
+### Transform Studio
+- ✅ **Phase 1 Complete**: All FFmpeg features implemented
+- ⚠️ **Phase 2 Pending**: Need documentation for style transfer models (Ditto)
+
+### Face Swap
+- ⚠️ **Not Implemented**: Code structure exists but functionality missing
+- 📋 **Action Required**: 
+  - Get WaveSpeed documentation for `wavespeed-ai/wan-2.1/mocha` or `wavespeed-ai/video-face-swap`
+  - Implement face swap in **Edit Studio** (not Avatar Studio)
+  - Add face swap tab to Edit Studio UI
+
+### Video Translation
+- ⚠️ **Not Implemented**: Only referenced in code, no actual implementation
+- 📋 **Action Required**:
+  - Get HeyGen documentation for `heygen/video-translate`
+  - Or find alternative translation + lip-sync solution
+  - Consider adding to Edit Studio or separate Localization module
+
+### Social Optimizer
+- ✅ **Can Start Immediately**: 80% of features use FFmpeg (reuse Transform Studio processors)
+- 📋 **Implementation Plan**: 
+  - Phase 1: Platform presets, aspect conversion, trimming, compression, thumbnails
+  - Phase 2: Caption overlay, safe zones (may need additional APIs)
+
+---
+
+## Next Steps Priority
+
+1. **Social Optimizer** (Immediate - No AI docs needed)
+   - Reuse Transform Studio processors
+   - Platform specifications
+   - Batch processing
+
+2. **Face Swap** (After Social Optimizer)
+   - Get WaveSpeed MoCha documentation
+   - Implement in Edit Studio
+   - Add UI for face selection
+
+3. **Video Translation** (After Face Swap)
+   - Get HeyGen documentation
+   - Implement translation + lip-sync
+   - Add to Edit Studio or separate module
+
+4. **Style Transfer** (Transform Studio Phase 2)
+   - Get Ditto model documentation
+   - Add style transfer tab to Transform Studio