# ALwrity Video Studio: Implementation Plan

## Purpose
Deliver a creator-friendly, platform-ready video studio that hides provider/model complexity, guides users to successful outputs, and stays transparent on cost. Reuse Image Studio patterns and shared preflight/subscription checks via `main_video_generation`.

---

## Core principles
- **Provider/model abstraction**: One interface; pluggable providers; auto-routing by use case, cost, SLA. No provider jargon in UI.
- **Preflight first**: Auth, quota/tier gating, safety, and cost estimation before hitting any model.
- **Guided success**: Templates, motion/audio presets, platform defaults, inline guardrails (duration/aspect/size) with surfaced costs.
- **Cost transparency**: Per-run estimate + actual; show price drivers (resolution, duration, provider). Support “draft/standard/premium” quality ladders.
- **Governed delivery**: Safe file serving, ownership checks, audit logs, usage telemetry.

---

## Modules (user-facing scope)
- **Create Studio**: t2v, i2v with templates, motion presets, aspect/duration defaults; audio opt-in (upload/TTS).
- **Avatar Studio**: Talking avatars (short/long), face/character swap, dubbing/translation; voice optional.
- **Edit Studio**: Trim/cut, speed, stabilize, background/sky replace, object/face swap, captions/subtitles, color grade.
- **Enhance Studio**: Upscale (480p→4K), VSR, frame-rate boost, denoise/sharpen, temporal outpaint/extend.
- **Transform Studio**: Format/codec/aspect conversion; video-to-video restyle; style transfer.
- **Social Optimizer**: One-click platform packs (IG/TikTok/YouTube/LinkedIn/Twitter), safe zones, compression, thumbnail.
- **Asset Library**: AI tagging, versions, usage, analytics, governed links.

---

## Model catalog (pluggable; WaveSpeed-led but not locked)
- **Text-to-video (fast, coherent)**: `wavespeed-ai/hunyuan-video-1.5/text-to-video` — 5/8/10s, 480p/720p, ~$0.02–0.04/s [[link](https://wavespeed.ai/models/wavespeed-ai/hunyuan-video-1.5/text-to-video)].
- **Image-to-video (short clips)**: `wavespeed-ai/kandinsky5-pro/image-to-video` — 5s MP4, 512p/1024p, ~$0.20/0.60 per run [[link](https://wavespeed.ai/models/wavespeed-ai/kandinsky5-pro/image-to-video)].
- **Extend/outpaint**: `alibaba/wan-2.5/video-extend` — extend clips with motion/audio continuity.
- **High-speed t2v/i2v**: `lightricks/ltx-2-pro/text-to-video`, `lightricks/ltx-2-fast/image-to-video`, `lightricks/ltx-2-retake` — draft/retake flows with lower latency.
- **Character/face swap**: `wavespeed-ai/wan-2.1/mocha`, `wavespeed-ai/video-face-swap`.
- **Video-to-video restyle/realism**: `wavespeed-ai/wan-2.1/ditto`, `wavespeed-ai/wan-2.1/synthetic-to-real-ditto`, `mirelo-ai/sfx-v1.5/video-to-video`, `decart/lucy-edit-pro`.
- **Audio/foley/dubbing**: `wavespeed-ai/hunyuan-video-foley`, `wavespeed-ai/think-sound`, `heygen/video-translate`.
- **Quality/post**: `wavespeed-ai/flashvsr` (upscaler), `wavespeed.ai/video-outpainter` (temporal outpaint).
- **Future slots**: Additional providers slotted via the same adapter interface (cost/SLA caps).

Provider-agnostic API note: each model sits behind a provider adapter implementing a common contract (generate/extend/enhance, capability flags, pricing metadata); routing is driven by policy + user intent (quality, speed, budget, platform target).

---

## Backend implementation
- **Orchestrator**: `VideoStudioManager` delegates to module services; `main_video_generation` entrypoint mirrors `main_text_generation`/`main_image_generation`.
- **Services**: `create_service`, `avatar_service`, `edit_service`, `enhance_service`, `transform_service`, `social_optimizer_service`, `asset_library_service`.
- **Provider adapters**: WaveSpeed, LTX, Alibaba, HeyGen, Decart, etc. registered via a provider registry with capability metadata (resolutions, duration caps, cost curves, latency class, safety profile).
- **Preflight middleware**: auth → subscription/limits → capability guard (resolution/duration) → cost estimate → optional user confirm → enqueue job.
- **Jobs & storage**: async job queue for long video runs; store artifacts in user-scoped buckets; signed URLs for delivery; CDN-friendly paths.
- **Tracking**: usage + cost logging per op; surfaced to UI and billing; audit logs for asset access.
- **Safety**: optional safety checker flags from providers; block/blur pipelines if required; PII guardrails for translations/face swap.

---

## Frontend implementation
- **Layout reuse**: `VideoStudioLayout` (glassy, motion presets) + dashboard cards showing status, ETA, and cost hints.
- **Guidance-first UI**: platform templates, duration/aspect presets, motion presets, audio toggle; inline cost estimator tied to preflight.
- **Async UX**: polling/websocket for job status, resumable downloads, progress with ETA based on provider latency class.
- **Editor widgets**: timeline for trim/speed; face/region selection for swap; caption/dubbing panels; preview player with quality toggles.
- **Cost surfaces**: draft/standard/premium toggle that maps to provider/model choices; show estimated $ and credit impact before submit.

---

## Preflight & cost transparency
- Inputs validated against tier caps (duration, resolution, monthly ops).
- Cost estimate = provider pricing × duration/resolution × quality tier; show before submit.
- Post-run actuals recorded; user sees “estimated vs actual” and remaining quota/credits.
- Fallback ladder: prefer lowest-cost that meets spec; escalate to higher-quality if user selects premium.

---

## Use cases (creator + platform)
- Social short: 5–10s vertical t2v/i2v with audio; auto IG/TikTok/YouTube Shorts pack.
- Product hero: i2v + subtle motion, then outpaint/extend to 15s, upscale to 1080p, add captions.
- Avatar explainer: photo + audio → talking head; optional translation + captions for LinkedIn/YouTube.
- Restyle/localize: video-to-video with style transfer + dubbing/translate; maintain duration/aspect per channel.
- Upscale/repair: ingest UGC, denoise/sharpen, flashvsr upscale, safe-zone crops for ads.

---

## Implementation roadmap (condensed)
- **Phase 1 (Foundation)**: `main_video_generation`, provider registry, Create Studio (t2v/i2v), preflight/cost, storage + signed URLs, basic dashboard + job status.
- **Phase 2 (Adapt & Enhance)**: Avatar Studio, Enhance (VSR, frame-rate), Transform (format/aspect), Social Optimizer, cost telemetry UI.
- **Phase 3 (Edit & Localize)**: Edit Studio (trim/speed/replace/swap), dubbing/translate, face/character swap, outpaint/extend, asset library v1 with analytics.
- **Phase 4 (Scale & Govern)**: Performance tuning, batch runs, org/policy controls, advanced analytics, provider failover testing.

---

## Metrics (short)
- **Quality & success**: generation success rate, CSAT on outputs.
- **Speed**: P50/P90 job time by tier/provider; preflight-to-submit conversion.
- **Cost**: estimate vs actual delta; cost per minute by tier; quota utilization.
- **Adoption**: DAU/WAU using video modules; module mix (create/enhance/edit).

---

## Risks & mitigations (short)
- API/provider drift → contract tests + capability registry versioning.
- Cost overruns → hard caps per tier, preflight estimates, auto-downgrade to draft.
- Long-job failures → resumable jobs, chunked uploads, retry with backoff/failover provider.
- Safety/abuse → safety flags, PII guardrails, per-tenant policy toggles, audit logs.

---

## Next steps
- Finalize provider adapter contracts and register the initial set (WaveSpeed, LTX, Alibaba, HeyGen).
- Wire `main_video_generation` with shared preflight/subscription middleware.
- Ship Create Studio with cost surfaces and platform templates; add Enhance (flashvsr) and Extend (wan-2.5) as first enrichers.
- Document provider pricing metadata and map to draft/standard/premium tiers in UI.

## Video Studio Modules

### Module 1: **Create Studio** - Video Generation

**Purpose**: Generate videos from text prompts and images

**Features**:
- **Text-to-Video**: Generate videos from text descriptions
- **Image-to-Video**: Animate static images into dynamic videos
- **Multi-Provider Support**: WaveSpeed WAN 2.5 (primary), HuggingFace (fallback)
- **Resolution Options**: 480p, 720p, 1080p
- **Duration Control**: 5 seconds, 10 seconds (extendable)
- **Aspect Ratios**: 16:9, 9:16, 1:1, 4:5, 21:9
- **Audio Integration**: Upload audio or text-to-speech
- **Motion Control**: Subtle, Medium, Dynamic presets
- **Platform Templates**: Instagram Reels, YouTube Shorts, TikTok, LinkedIn
- **Batch Generation**: Generate multiple variations
- **Prompt Enhancement**: AI-powered prompt optimization
- **Cost Preview**: Real-time cost estimation

**WaveSpeed Models**:
- `alibaba/wan-2.5/text-to-video`: Primary text-to-video generation
- `alibaba/wan-2.5/image-to-video`: Image animation

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  CREATE STUDIO - VIDEO                                  │
├─────────────────────────────────────────────────────────┤
│  Generation Type: ⦿ Text-to-Video  ○ Image-to-Video    │
│                                                         │
│  Template: [Social Media Video ▼]                      │
│  Platform: [Instagram Reel ▼]  Size: [1080x1920]      │
│                                                         │
│  ┌─────────────────────────────────────────────────┐  │
│  │ Describe your video...                          │  │
│  │ "A modern coffee shop with customers enjoying   │  │
│  │  their morning coffee, warm lighting"           │  │
│  └─────────────────────────────────────────────────┘  │
│                                                         │
│  VIDEO SETTINGS:                                        │
│  Resolution: [720p ▼]  Duration: [10s ▼]             │
│  Aspect Ratio: [9:16 ▼]  Motion: [Medium ▼]          │
│                                                         │
│  AUDIO (Optional):                                      │
│  ⦿ Upload Audio  ○ Text-to-Speech  ○ Silent           │
│  [Upload MP3/WAV...] (3-30s, ≤15MB)                    │
│                                                         │
│  Provider: [Auto-Select ▼] (Recommended: WAN 2.5)    │
│                                                         │
│  Cost: ~$1.00  |  Time: ~15s  |  [Generate Video]     │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoCreateStudioService`
**API Endpoint**: `POST /api/video-studio/create`

---

### Module 2: **Avatar Studio** - Talking Avatars

**Purpose**: Create talking/singing avatars from photos and audio

**Features**:
- **Photo Upload**: Single image for avatar creation
- **Audio-Driven**: Perfect lip-sync from audio input
- **Resolution Options**: 480p, 720p
- **Duration**: Up to 2 minutes (120 seconds)
- **Emotion Control**: Neutral, Happy, Professional, Excited
- **Multi-Character**: Support for dialogue scenes
- **Voice Cloning Integration**: Use cloned voices
- **Multilingual**: Support for multiple languages
- **Character Consistency**: Preserve identity across scenes
- **Prompt Control**: Optional style/expression prompts

**WaveSpeed Models**:
- `wavespeed-ai/hunyuan-avatar`: Short-form avatars (up to 2 min)
- `wavespeed-ai/infinitetalk`: Long-form avatars (up to 10 min)

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  AVATAR STUDIO                                          │
├─────────────────────────────────────────────────────────┤
│  Avatar Type: ⦿ Hunyuan (2 min)  ○ InfiniteTalk (10 min)│
│                                                         │
│  ┌─────────────┬─────────────────────────────────────┐ │
│  │  Photo      │  [Image Preview]                     │ │
│  │  Upload     │  1024x1024                           │ │
│  │  [Browse...]│                                      │ │
│  └─────────────┴─────────────────────────────────────┘ │
│                                                         │
│  ┌─────────────────────────────────────────────────┐  │
│  │  Audio Upload                                    │  │
│  │  [Upload MP3/WAV...] (max 10 min)               │  │
│  │  Duration: 0:00 / 2:00                          │  │
│  └─────────────────────────────────────────────────┘  │
│                                                         │
│  SETTINGS:                                              │
│  Resolution: [720p ▼]                                  │
│  Emotion: [Professional ▼]                             │
│  Expression Prompt: "Confident, friendly smile"         │
│                                                         │
│  Voice: [Use Voice Clone ▼] (Optional)                │
│                                                         │
│  Cost: ~$7.20 (2 min @ 720p)  |  [Create Avatar]      │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoAvatarStudioService`
**API Endpoint**: `POST /api/video-studio/avatar/create`

---

### Module 3: **Edit Studio** - Video Editing

**Purpose**: AI-powered video editing and enhancement

**Features**:
- **Trim & Cut**: Remove unwanted segments
- **Speed Control**: Slow motion, fast forward
- **Stabilization**: Fix shaky footage
- **Color Grading**: AI-powered color correction
- **Background Replacement**: Replace video backgrounds
- **Object Removal**: Remove unwanted objects
- **Text Overlay**: Add captions and titles
- **Transitions**: Smooth scene transitions
- **Audio Enhancement**: Improve audio quality
- **Noise Reduction**: Remove background noise
- **Frame Interpolation**: Smooth motion between frames

**WaveSpeed Models**:
- Background replacement and object removal
- Frame interpolation for smooth motion

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  EDIT STUDIO                                            │
├─────────────────────────────────────────────────────────┤
│  ┌────────────┬───────────────────────────────────────┐ │
│  │  Tools     │  [Video Timeline]                     │ │
│  │            │  [00:00 ────────●────────── 00:10]   │ │
│  │ ○ Trim     │                                       │ │
│  │ ○ Speed    │  [Video Preview]                      │ │
│  │ ○ Stabilize│                                       │ │
│  │ ○ Color    │  Selection: 00:02 - 00:08            │ │
│  │ ○ Background│                                      │ │
│  │ ○ Remove   │                                       │ │
│  │ ○ Text     │  [Apply Edit] [Reset] [Preview]      │ │
│  └────────────┴───────────────────────────────────────┘ │
│                                                         │
│  Edit Instructions: "Remove the watermark"            │
│  [Apply Edit]                                           │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoEditStudioService`
**API Endpoint**: `POST /api/video-studio/edit/process`

---

### Module 4: **Enhance Studio** - Quality Enhancement

**Purpose**: Improve video quality and resolution

**Features**:
- **Upscaling**: 480p → 720p → 1080p → 4K
- **Frame Rate Boost**: 24fps → 30fps → 60fps
- **Noise Reduction**: Remove compression artifacts
- **Sharpening**: Enhance video clarity
- **HDR Enhancement**: Improve dynamic range
- **Color Enhancement**: Better color accuracy
- **Batch Processing**: Enhance multiple videos

**WaveSpeed Models**:
- Video upscaling capabilities
- Frame interpolation for smooth motion

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  ENHANCE STUDIO                                         │
├─────────────────────────────────────────────────────────┤
│  Upload Video: [Browse...] or [Drag & Drop]            │
│                                                         │
│  Current: 480p @ 24fps → Target: 1080p @ 60fps         │
│                                                         │
│  Enhancement Options:                                    │
│  ☑ Upscale Resolution (480p → 1080p)                    │
│  ☑ Boost Frame Rate (24fps → 60fps)                    │
│  ☑ Reduce Noise                                         │
│  ☑ Enhance Sharpness                                    │
│  ☐ HDR Enhancement                                      │
│                                                         │
│  Quality Preset: [High Quality ▼]                      │
│                                                         │
│  [Preview] [Enhance Video]                             │
│                                                         │
│  ┌─────────────┬─────────────┐                         │
│  │  Original    │  Enhanced   │                         │
│  │  480p @ 24fps│  1080p @ 60fps│                       │
│  └─────────────┴─────────────┘                         │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoEnhanceStudioService`
**API Endpoint**: `POST /api/video-studio/enhance`

---

### Module 5: **Transform Studio** - Format Conversion

**Purpose**: Convert videos between formats and styles

**Features**:
- **Format Conversion**: MP4, MOV, WebM, GIF
- **Aspect Ratio Conversion**: 16:9 ↔ 9:16 ↔ 1:1
- **Style Transfer**: Apply artistic styles to videos
- **Speed Adjustment**: Slow motion, time-lapse
- **Resolution Scaling**: Scale up or down
- **Compression**: Optimize file size
- **Batch Conversion**: Convert multiple videos

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  TRANSFORM STUDIO                                       │
├─────────────────────────────────────────────────────────┤
│  Transform Type: ⦿ Format  ○ Aspect Ratio  ○ Style     │
│                                                         │
│  Source Video: [video.mp4] (1080x1920, 10s)            │
│                                                         │
│  OUTPUT FORMAT:                                         │
│  Format: [MP4 ▼]  Codec: [H.264 ▼]                    │
│  Quality: [High ▼]  Bitrate: [Auto ▼]                 │
│                                                         │
│  ASPECT RATIO:                                          │
│  ⦿ Keep Original  ○ Convert to [9:16 ▼]                │
│                                                         │
│  STYLE (Optional):                                      │
│  [None ▼]  [Cinematic ▼]  [Vintage ▼]                 │
│                                                         │
│  [Preview] [Transform Video]                           │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoTransformStudioService`
**API Endpoint**: `POST /api/video-studio/transform`

---

### Module 6: **Social Optimizer** - Platform Optimization

**Purpose**: Optimize videos for social media platforms

**Features**:
- **Platform Presets**: Instagram, TikTok, YouTube, LinkedIn, Facebook
- **Aspect Ratio Optimization**: Auto-crop for each platform
- **Duration Limits**: Trim to platform requirements
- **File Size Optimization**: Compress to meet limits
- **Thumbnail Generation**: Auto-generate thumbnails
- **Caption Overlay**: Add platform-specific captions
- **Batch Export**: Export for multiple platforms
- **Safe Zones**: Show text-safe areas

**User Interface**:
```
┌─────────────────────────────────────────────────────────┐
│  SOCIAL OPTIMIZER                                       │
├─────────────────────────────────────────────────────────┤
│  Source Video: [video_1080x1920.mp4] (10s)             │
│                                                         │
│  Select Platforms:                                      │
│  ☑ 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)                              │
│  ☐ Twitter (16:9, max 2:20)                            │
│                                                         │
│  Optimization Options:                                  │
│  ☑ Auto-crop to platform ratio                        │
│  ☑ Generate thumbnails                                 │
│  ☑ Add captions overlay                                │
│  ☑ Compress for file size limits                      │
│                                                         │
│  [Generate All Formats]                                 │
│                                                         │
│  PREVIEW:                                               │
│  ┌─────┬─────┬─────┬─────┐                            │
│  │ IG  │ TT  │ YT  │ LI  │                            │
│  │9:16 │9:16 │9:16 │16:9 │                            │
│  └─────┴─────┴─────┴─────┘                            │
│                                                         │
│  [Download All] [Upload to Platforms]                 │
└─────────────────────────────────────────────────────────┘
```

**Backend Service**: `VideoSocialOptimizerService`
**API Endpoint**: `POST /api/video-studio/social/optimize`

---

### Module 7: **Asset Library** - Video Management

**Purpose**: Organize and manage video assets

**Features**:
- **Smart Organization**: Auto-tagging with AI
- **Search & Discovery**: Search by prompt, tags, duration
- **Collections**: Organize videos into projects
- **Version History**: Track edits and variations
- **Usage Tracking**: See where videos are used
- **Sharing**: Share collections with team
- **Analytics**: View performance metrics
- **Export History**: Track downloads

**User Interface**: Similar to Image Studio Asset Library

**Backend Service**: `VideoAssetLibraryService`
**API Endpoint**: `GET /api/video-studio/assets`

---

## Technical Architecture

### Backend Structure

```
backend/
├── services/
│   ├── video_studio/
│   │   ├── __init__.py
│   │   ├── studio_manager.py          # Main orchestration
│   │   ├── create_service.py           # Video generation
│   │   ├── avatar_service.py           # Avatar creation
│   │   ├── edit_service.py             # Video editing
│   │   ├── enhance_service.py          # Quality enhancement
│   │   ├── transform_service.py        # Format conversion
│   │   ├── social_optimizer_service.py # Platform optimization
│   │   ├── asset_library_service.py    # Asset management
│   │   └── templates.py                # Video templates
│   │
│   ├── llm_providers/
│   │   ├── wavespeed_video_provider.py # WAN 2.5, Avatar models
│   │   └── wavespeed_client.py         # WaveSpeed API client
│   │
│   └── subscription/
│       └── video_studio_validator.py   # Cost & limit validation
│
├── routers/
│   └── video_studio.py                 # API endpoints
│
└── models/
    └── video_studio_models.py          # Pydantic models
```

### Frontend Structure

```
frontend/src/
├── components/
│   └── VideoStudio/
│       ├── VideoStudioLayout.tsx       # Main layout (reuse ImageStudioLayout pattern)
│       ├── VideoStudioDashboard.tsx    # Module dashboard
│       ├── CreateStudio.tsx            # Video generation
│       ├── AvatarStudio.tsx            # Avatar creation
│       ├── EditStudio.tsx              # Video editing
│       ├── EnhanceStudio.tsx           # Quality enhancement
│       ├── TransformStudio.tsx         # Format conversion
│       ├── SocialOptimizer.tsx         # Platform optimization
│       ├── AssetLibrary.tsx            # Video management
│       ├── VideoPlayer.tsx             # Video preview component
│       ├── VideoTimeline.tsx           # Timeline editor
│       └── ui/                         # Shared UI components
│           ├── GlassyCard.tsx          # Reuse from Image Studio
│           ├── SectionHeader.tsx       # Reuse from Image Studio
│           └── StatusChip.tsx          # Reuse from Image Studio
│
├── hooks/
│   ├── useVideoStudio.ts               # Main hook
│   ├── useVideoGeneration.ts           # Generation hook
│   ├── useAvatarCreation.ts            # Avatar hook
│   └── useVideoEditing.ts              # Editing hook
│
└── utils/
    ├── videoOptimizer.ts                # Client-side optimization
    ├── platformSpecs.ts                 # Social media specs (reuse)
    └── costCalculator.ts                # Cost estimation (reuse)
```

---

## API Endpoint Structure

### Core Video Studio Endpoints

```
POST   /api/video-studio/create              # Generate video
POST   /api/video-studio/avatar/create        # Create avatar
POST   /api/video-studio/edit/process         # Edit video
POST   /api/video-studio/enhance              # Enhance quality
POST   /api/video-studio/transform            # Convert format
POST   /api/video-studio/social/optimize      # Optimize for platforms
GET    /api/video-studio/assets               # List videos
GET    /api/video-studio/assets/{id}          # Get video details
DELETE /api/video-studio/assets/{id}         # Delete video
POST   /api/video-studio/assets/search        # Search videos
GET    /api/video-studio/providers            # Get providers
GET    /api/video-studio/templates            # Get templates
POST   /api/video-studio/estimate-cost       # Estimate cost
GET    /api/video-studio/videos/{user_id}/{filename}  # Serve video file
```

---

## WaveSpeed AI Models Integration

### Primary Models

#### 1. **Alibaba WAN 2.5 Text-to-Video**
- **Model**: `alibaba/wan-2.5/text-to-video`
- **Capabilities**: 
  - Generate videos from text prompts
  - 480p/720p/1080p resolution
  - Up to 10 seconds duration
  - Synchronized audio/voiceover
  - Automatic lip-sync
  - Multilingual support
- **Pricing**: 
  - 480p: $0.05/second
  - 720p: $0.10/second
  - 1080p: $0.15/second

#### 2. **Alibaba WAN 2.5 Image-to-Video**
- **Model**: `alibaba/wan-2.5/image-to-video`
- **Capabilities**:
  - Animate static images
  - Same resolution/duration options as text-to-video
  - Audio synchronization
- **Pricing**: Same as text-to-video

#### 3. **Hunyuan Avatar**
- **Model**: `wavespeed-ai/hunyuan-avatar`
- **Capabilities**:
  - Talking avatars from image + audio
  - 480p/720p resolution
  - Up to 120 seconds (2 minutes)
  - High-fidelity lip-sync
  - Emotion control
- **Pricing**:
  - 480p: $0.15/5 seconds
  - 720p: $0.30/5 seconds

#### 4. **InfiniteTalk**
- **Model**: `wavespeed-ai/infinitetalk`
- **Capabilities**:
  - Long-form avatar videos
  - Up to 10 minutes duration
  - 480p/720p resolution
  - Precise lip synchronization
  - Full-body coherence
- **Pricing**:
  - 480p: $0.15/5 seconds (capped at 600s)
  - 720p: $0.30/5 seconds (capped at 600s)

---

## Implementation Roadmap

### Phase 1: Foundation ✅ **COMPLETED**

**Status**: Core infrastructure and Create Studio implemented

**Completed Deliverables**:
1. ✅ **Backend Architecture**
   - Modular router structure (`backend/routers/video_studio/`)
   - Endpoint separation (create, avatar, enhance, models, serve, tasks, prompt)
   - Unified video generation (`main_video_generation.py`)
   - Preflight and subscription checks integrated

2. ✅ **WaveSpeed Client Refactoring**
   - Modular client structure (`backend/services/wavespeed/`)
   - Separate generators (prompt, image, video, speech)
   - Polling utilities with failure resilience
   - Provider-agnostic design

3. ✅ **Create Studio - Text-to-Video**
   - Frontend UI with prompt input and settings
   - Model selector (HunyuanVideo-1.5, LTX-2 Pro, Veo 3.1)
   - Model education system with creator-focused descriptions
   - Cost estimation and preflight validation
   - Async generation with polling
   - Video examples and asset library integration

4. ✅ **Create Studio - Image-to-Video**
   - Image upload and preview
   - Unified generation through `main_video_generation`
   - Same async polling mechanism

5. ✅ **Avatar Studio**
   - Hunyuan Avatar support (up to 2 min)
   - InfiniteTalk support (up to 10 min)
   - Photo + audio upload
   - Expression prompt with enhancement
   - Cost estimation per model
   - Async generation with progress tracking

6. ✅ **Prompt Optimization**
   - WaveSpeed Prompt Optimizer integration
   - "Enhance Instructions" button in all prompt inputs
   - Video mode optimization for better results
   - Tooltips explaining capabilities

7. ✅ **Infrastructure**
   - Video file storage and serving
   - Asset library integration
   - Task management with polling
   - Error handling and recovery

**Current Status**: Phase 1 complete. Create Studio and Avatar Studio are functional.

---

### Phase 2: Enhancement & Model Expansion 🚧 **IN PROGRESS**

**Priority**: HIGH  
**Next Steps**: Complete enhancement features and add remaining models

**Planned Deliverables**:
1. ⚠️ **Enhance Studio** (Partially Complete)
   - ✅ Backend endpoint exists (`/api/video-studio/enhance`)
   - ⚠️ Frontend UI implementation needed
   - ⚠️ FlashVSR upscaling integration
   - ⚠️ Frame rate boost
   - ⚠️ Denoise/sharpen features

2. ⚠️ **Additional Text-to-Video Models**
   - ✅ HunyuanVideo-1.5 (implemented)
   - ✅ LTX-2 Pro (implemented)
   - ✅ Google Veo 3.1 (implemented)
   - ⚠️ LTX-2 Fast (add for draft mode)
   - ⚠️ LTX-2 Retake (add for regeneration)

3. ⚠️ **Image-to-Video Models**
   - ✅ WAN 2.5 (implemented via unified generation)
   - ⚠️ Kandinsky 5 Pro (add as alternative)
   - ⚠️ Video extend/outpaint (WAN 2.5 video-extend)

4. ⚠️ **Video Player Improvements**
   - ✅ Basic preview exists
   - ⚠️ Advanced controls (playback speed, quality toggle)
   - ⚠️ Side-by-side comparison
   - ⚠️ Timeline scrubbing

5. ⚠️ **Batch Processing**
   - ⚠️ Multiple video generation
   - ⚠️ Queue management
   - ⚠️ Progress tracking for batches

**Recommended Next Steps**:
1. Complete Enhance Studio frontend UI
2. Integrate FlashVSR for upscaling
3. Add LTX-2 Fast and Retake models
4. Improve video player component

---

### Phase 3: Editing & Transformation 🔜 **PLANNED**

**Priority**: MEDIUM  
**Timeline**: After Phase 2 completion

**Planned Deliverables**:
1. ⚠️ **Edit Studio**
   - Trim/cut functionality
   - Speed control (slow motion, fast forward)
   - Stabilization
   - Background replacement
   - Object/face removal
   - Text overlay and captions
   - Color grading

2. ⚠️ **Transform Studio**
   - Format conversion (MP4, MOV, WebM, GIF)
   - Aspect ratio conversion
   - Style transfer (video-to-video)
   - Compression optimization

3. ⚠️ **Social Optimizer**
   - Platform presets (Instagram, TikTok, YouTube, LinkedIn)
   - Auto-crop for aspect ratios
   - File size optimization
   - Thumbnail generation
   - Batch export for multiple platforms

4. ⚠️ **Asset Library Enhancement**
   - ✅ Basic asset library integration exists
   - ⚠️ Advanced search and filtering
   - ⚠️ Collections and projects
   - ⚠️ Version history
   - ⚠️ Usage analytics
   - ⚠️ Sharing and collaboration

**Models to Integrate**:
- `wavespeed-ai/wan-2.1/mocha` (face swap)
- `wavespeed-ai/wan-2.1/ditto` (video-to-video restyle)
- `decart/lucy-edit-pro` (advanced editing)
- `wavespeed-ai/flashvsr` (upscaling)

---

### Phase 4: Advanced Features & Polish 🔜 **FUTURE**

**Priority**: LOW  
**Timeline**: After core modules complete

**Planned Deliverables**:
1. ⚠️ **Advanced Editing**
   - Timeline editor component
   - Multi-track editing
   - Advanced transitions
   - Audio mixing

2. ⚠️ **Audio Features**
   - `wavespeed-ai/hunyuan-video-foley` (sound effects)
   - `wavespeed-ai/think-sound` (audio generation)
   - `heygen/video-translate` (dubbing/translation)

3. ⚠️ **Performance Optimization**
   - Caching strategies
   - Batch processing optimization
   - CDN integration
   - Provider failover

4. ⚠️ **Analytics & Insights**
   - Usage dashboards
   - Cost analytics
   - Quality metrics
   - User behavior tracking

5. ⚠️ **Collaboration Features**
   - Team workspaces
   - Shared collections
   - Commenting and feedback
   - Approval workflows


---

## Cost Management Strategy

### Pre-Flight Validation
- Check subscription tier before API call
- Validate feature availability
- Estimate and display costs upfront
- Show remaining credits/limits
- Suggest cost-effective alternatives

### Cost Optimization Features
- **Smart Provider Selection**: Choose most cost-effective option
- **Quality Tiers**: Draft (cheap) → Standard → Premium (expensive)
- **Batch Discounts**: Lower per-unit cost for bulk operations
- **Caching**: Reuse similar generations
- **Compression**: Optimize file sizes automatically

### Pricing Transparency
- Real-time cost display
- Monthly budget tracking
- Cost breakdown by operation
- Historical cost analytics
- Optimization recommendations

---

## Implementation Status Summary

### ✅ Completed (Phase 1)
- **Backend Infrastructure**: Modular router, unified video generation, preflight checks
- **WaveSpeed Client**: Refactored into modular generators (prompt, image, video, speech)
- **Create Studio**: Text-to-video and image-to-video with model selection
- **Avatar Studio**: Hunyuan Avatar and InfiniteTalk support
- **Prompt Optimization**: AI-powered prompt enhancement for all video modules
- **Polling System**: Non-blocking, failure-resilient task management
- **Cost Estimation**: Real-time cost calculation and preflight validation
- **Asset Integration**: Video examples and asset library linking

### 🚧 In Progress (Phase 2)
- **Enhance Studio**: Backend endpoint ready, frontend UI needed
- **Additional Models**: LTX-2 Fast, Retake, Kandinsky 5 Pro
- **Video Player**: Basic preview exists, advanced controls needed

### 🔜 Planned (Phase 3)
- **Edit Studio**: Trim, speed, stabilization, background replacement
- **Transform Studio**: Format conversion, aspect ratio, style transfer
- **Social Optimizer**: Platform-specific optimization and batch export
- **Asset Library**: Advanced search, collections, analytics

---

## Next Steps & Recommendations

### Immediate (Next 1-2 Weeks)
1. **Complete Enhance Studio Frontend**
   - Build UI for upscaling, frame rate boost
   - Integrate FlashVSR model (⚠️ **Needs documentation**)
   - Add side-by-side comparison view

2. **Add Remaining Text-to-Video Models**
   - LTX-2 Fast (for draft/quick iterations) - ⚠️ **Needs documentation**
   - LTX-2 Retake (for regeneration workflows) - ⚠️ **Needs documentation**
   - Update model selector with all options

3. **Add Image-to-Video Alternative**
   - Kandinsky 5 Pro (alternative to WAN 2.5) - ⚠️ **Needs documentation**

4. **Improve Video Player**
   - Add playback controls (play/pause, speed, quality)
   - Implement timeline scrubbing
   - Add download button

**📋 See `VIDEO_STUDIO_MODEL_DOCUMENTATION_NEEDED.md` for detailed documentation requirements**

### Short-term (Weeks 3-6)
1. **Image-to-Video Model Expansion**
   - Add Kandinsky 5 Pro as alternative to WAN 2.5
   - Integrate video-extend (WAN 2.5) for temporal outpaint

2. **Batch Processing**
   - Multiple video generation queue
   - Progress tracking for batches
   - Bulk download functionality

3. **Enhancement Features**
   - Denoise and sharpen options
   - HDR enhancement
   - Color correction

### Medium-term (Weeks 7-12)
1. **Edit Studio Implementation**
   - Start with trim/cut and speed control
   - Add stabilization
   - Background replacement
   - Object removal

2. **Transform Studio**
   - Format conversion (MP4, MOV, WebM, GIF)
   - Aspect ratio conversion
   - Style transfer integration

3. **Social Optimizer**
   - Platform presets and auto-crop
   - Thumbnail generation
   - Batch export functionality

### Long-term (Weeks 13+)
1. **Advanced Features**
   - Timeline editor
   - Multi-track editing
   - Audio mixing and foley
   - Dubbing and translation

2. **Performance & Scale**
   - Caching strategies
   - CDN integration
   - Provider failover
   - Batch optimization

3. **Analytics & Collaboration**
   - Usage dashboards
   - Team workspaces
   - Sharing and collaboration features

---

## Technical Achievements

### Code Quality Improvements
- ✅ **Modular Architecture**: Refactored monolithic files into organized modules
  - Router: `backend/routers/video_studio/` with endpoint separation
  - Client: `backend/services/wavespeed/` with generator pattern
- ✅ **Reusability**: Unified video generation (`main_video_generation.py`) used across modules
- ✅ **Error Handling**: Robust polling with transient error recovery
- ✅ **Type Safety**: Full TypeScript coverage in frontend

### Key Features Delivered
- ✅ **Multi-Model Support**: 3 text-to-video models with education system
- ✅ **Prompt Optimization**: AI-powered enhancement for better results
- ✅ **Cost Transparency**: Real-time estimation and preflight validation
- ✅ **Async Operations**: Non-blocking generation with progress tracking
- ✅ **Asset Integration**: Seamless linking with content asset library

---

## Conclusion

**Phase 1 Complete**: The Video Studio foundation is solid with Create Studio and Avatar Studio fully functional. The modular architecture and unified generation system provide a strong base for rapid expansion.

**Next Focus**: Complete Enhance Studio and add remaining models to provide users with comprehensive video creation capabilities before moving to editing and transformation features.

*Last Updated: Current Session*  
*Status: Phase 1 Complete | Phase 2 In Progress*  
*Owner: ALwrity Product Team*
