Video

Video Generation with AI

Video Generation Landscape
| Model | Type | Availability |
|-------|------|--------------|
| Sora (OpenAI) | Text-to-video | Limited access |
| Runway Gen-3 | Text/image to video | Commercial |
| Pika | Text-to-video | Commercial |
| Stable Video Diffusion | Image-to-video | Open source |
| AnimateDiff | Animation from image | Open source |

Text-to-Video

# Conceptual API usage
video = video_model.generate(
    prompt="A cinematic drone shot flying over mountains at sunset",
    duration=5,  # seconds
    fps=24,
    resolution="1080p"
)

Image-to-Video
Animate a static image:

from diffusers import StableVideoDiffusionPipeline

pipe = StableVideoDiffusionPipeline.from_pretrained(
    "stabilityai/stable-video-diffusion-img2vid"
)

# Generate video frames from image
frames = pipe(
    image=input_image,
    num_frames=25,
    fps=6
).frames[0]

Video Understanding
LLMs with video understanding:

# Gemini or GPT-4o with video
response = llm.generate(
    prompt="Describe what happens in this video",
    video="path/to/video.mp4"
)

Frame Interpolation
Increase video smoothness:

# RIFE, FILM for frame interpolation
interpolated = interpolate(
    frames,
    target_fps=60,  # From 24 to 60
    model="rife"
)

Key Capabilities
| Capability | Description |
|------------|-------------|
| Text-to-video | Generate from description |
| Image-to-video | Animate still images |
| Video-to-video | Style transfer, editing |
| Frame interpolation | Smooth motion |
| Upscaling | Increase resolution |

Challenges
| Challenge | Current State |
|-----------|---------------|
| Temporal consistency | Improving, still imperfect |
| Physics accuracy | Limited |
| Long-form content | Minutes, not hours |
| Fine control | Limited directorial control |
| Compute cost | Very high |

Use Cases
- Marketing and ads
- Concept visualization
- Animation prototyping
- Social media content
- Educational content

Best Practices
- Use detailed prompts with motion descriptions
- Start from high-quality images for img2vid
- Plan for post-processing
- Consider frame-by-frame for precise control