fal-video-to-video

What this skill does

## Quick Reference

| Task | Endpoint | Key Parameter |
|------|----------|---------------|
| Style/Edit | `fal-ai/kling-video/o1/video-to-video/edit` | `edit_type` |
| Remix | `fal-ai/sora/remix` | `prompt` |
| Upscale | `fal-ai/video-upscaler` | `scale: 2,4` |
| Interpolate | `fal-ai/frame-interpolation` | `target_fps` |

| Edit Type | Use Case |
|-----------|----------|
| `general` | Color, lighting, quality |
| `style` | Anime, painting, noir |
| `object` | Replace/remove elements |

| Style Keyword | Effect |
|---------------|--------|
| "anime style" | Japanese animation |
| "oil painting" | Textured brushstrokes |
| "noir" | High contrast B&W |
| "cyberpunk" | Neon futuristic |

| Upscale | Size Impact |
|---------|-------------|
| 2x | 4x file size |
| 4x | 16x file size |

## When to Use This Skill

Use for **video editing and transformation**:
- Applying style transfer to videos
- Upscaling low-resolution videos
- Increasing frame rate for smooth motion
- Replacing or removing objects
- Enhancing video quality

**Related skills:**
- For text-to-video: see `fal-text-to-video`
- For image-to-video: see `fal-image-to-video`
- For model selection: see `fal-model-guide`

---

# fal.ai Video-to-Video Models

Complete reference for video editing, transformation, and upscaling models on fal.ai.

## Kling O1 Video Editing

### Kling O1 Video-to-Video Edit
**Endpoint:** `fal-ai/kling-video/o1/video-to-video/edit`
**Best For:** Comprehensive video editing and transformation

```typescript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Transform into an anime style with vibrant colors",
    video_url: "https://example.com/original-video.mp4",
    edit_type: "style",
    negative_prompt: "blurry, distorted, low quality"
  }
});

console.log(result.video.url);
```

```python
import fal_client

result = fal_client.subscribe(
    "fal-ai/kling-video/o1/video-to-video/edit",
    arguments={
        "prompt": "Transform into anime style",
        "video_url": "https://example.com/video.mp4",
        "edit_type": "style"
    }
)
print(result["video"]["url"])
```

**Edit Types:**

| Type | Description | Use Case |
|------|-------------|----------|
| `general` | General purpose editing | Any transformation |
| `style` | Style transfer | Artistic effects |
| `object` | Object replacement/editing | Change specific elements |

**Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| `prompt` | string | Editing instruction |
| `video_url` | string | Source video URL |
| `edit_type` | string | "general", "style", "object" |
| `negative_prompt` | string | What to avoid |

### Kling O1 Examples

**Style Transfer:**
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Transform into a watercolor painting style with soft brushstrokes",
    video_url: sourceVideoUrl,
    edit_type: "style",
    negative_prompt: "harsh edges, digital artifacts"
  }
});
```

**Object Editing:**
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Change the red car to a blue sports car",
    video_url: sourceVideoUrl,
    edit_type: "object"
  }
});
```

**General Transformation:**
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Make it look like a sunny summer day instead of overcast",
    video_url: sourceVideoUrl,
    edit_type: "general"
  }
});
```

## Sora 2 Remix

### Sora Remix (Video Transformation)
**Endpoint:** `fal-ai/sora/remix`
**Best For:** Creative video remixing and transformation

```typescript
const result = await fal.subscribe("fal-ai/sora/remix", {
  input: {
    prompt: "Transform this into a cinematic sci-fi scene with futuristic elements",
    video_url: "https://example.com/original.mp4",
    aspect_ratio: "16:9"
  }
});

console.log(result.video.url);
```

**Sora Remix Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| `prompt` | string | Transformation description |
| `video_url` | string | Source video URL |
| `aspect_ratio` | string | "16:9", "9:16", "1:1" |

## Video Upscaling

### Video Upscaler
**Endpoint:** `fal-ai/video-upscaler`
**Best For:** Enhance video resolution

```typescript
const result = await fal.subscribe("fal-ai/video-upscaler", {
  input: {
    video_url: "https://example.com/low-res-video.mp4",
    scale: 2  // 2x or 4x upscale
  }
});

console.log(result.video.url);
```

```python
result = fal_client.subscribe(
    "fal-ai/video-upscaler",
    arguments={
        "video_url": "https://example.com/video.mp4",
        "scale": 2
    }
)
```

**Parameters:**

| Parameter | Type | Values | Description |
|-----------|------|--------|-------------|
| `video_url` | string | - | Source video URL |
| `scale` | number | 2, 4 | Upscale factor |

### TopazVideoAI (if available)
**Endpoint:** `fal-ai/topaz-video-ai`
**Best For:** Professional video enhancement

```typescript
const result = await fal.subscribe("fal-ai/topaz-video-ai", {
  input: {
    video_url: "https://example.com/video.mp4",
    enhancement_type: "upscale",
    target_resolution: "4k"
  }
});
```

## Video Frame Interpolation

### Frame Interpolation
**Endpoint:** `fal-ai/frame-interpolation`
**Best For:** Smooth motion, increase frame rate

```typescript
const result = await fal.subscribe("fal-ai/frame-interpolation", {
  input: {
    video_url: "https://example.com/24fps-video.mp4",
    target_fps: 60,
    interpolation_mode: "smooth"
  }
});
```

**Parameters:**

| Parameter | Type | Description |
|-----------|------|-------------|
| `video_url` | string | Source video |
| `target_fps` | number | Target frame rate (30, 60, 120) |
| `interpolation_mode` | string | "smooth", "natural" |

## Video Style Transfer

### General Style Transfer Pipeline

```typescript
// Apply artistic style to video
async function applyVideoStyle(videoUrl: string, style: string) {
  const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
    input: {
      prompt: `Transform into ${style} style`,
      video_url: videoUrl,
      edit_type: "style"
    }
  });
  return result.video.url;
}

// Usage
const animeVideo = await applyVideoStyle(originalVideo, "anime");
const oilPaintingVideo = await applyVideoStyle(originalVideo, "oil painting");
const pixelArtVideo = await applyVideoStyle(originalVideo, "pixel art");
```

### Style Keywords

| Style | Prompt Example |
|-------|----------------|
| Anime | "Japanese anime style, cel shading" |
| Watercolor | "Soft watercolor painting with flowing colors" |
| Oil Painting | "Classical oil painting, textured brushstrokes" |
| Pixel Art | "8-bit pixel art retro game style" |
| Noir | "Black and white film noir, high contrast" |
| Cyberpunk | "Neon cyberpunk aesthetic, futuristic" |
| Sketch | "Hand-drawn pencil sketch style" |
| Comic | "Comic book style with bold outlines" |

## Video Enhancement Techniques

### Denoising
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Clean and enhance video quality, reduce noise and grain",
    video_url: noisyVideoUrl,
    edit_type: "general",
    negative_prompt: "grainy, noisy, artifacts"
  }
});
```

### Color Correction
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Enhance colors to be more vibrant and natural, improve contrast",
    video_url: flatVideoUrl,
    edit_type: "general"
  }
});
```

### Lighting Enhancement
```typescript
const result = await fal.subscribe("fal-ai/kling-video/o1/video-to-video/edit", {
  input: {
    prompt: "Improve lighting, add warm golden hour glow",
    video_url: darkVideoUrl,
    edit_type: "general"
  }
});
```

## Video Object Editing

### Object Rep