From Script to Screen: Building an AI-Powered Video Preview App

From Script to Screen: Building an AI-Powered Video Preview App

 


What if You Could Turn a Script into a Mini Animated Movie?


Imagine writing a simple scene with two characters talking in a coffee shop. Then, within minutes, you could watch that scene come to life with visuals, character voices, and an animated preview.


That's the magic behind **Script to Video Studio**, a modern web app that combines advanced AI with an easy-to-use design to create storyboard-style video previews from written scripts.

In this blog post, we will show you how the technology works, what makes it effective, and how you can use it to bring your stories to life.



 The Tech Stack Behind the Scenes

The project uses a modern, scalable tech stack enhanced by AI:

🛠️ Technology Stack Overview

Layer Tech Used Purpose
Frontend Next.js, React, TypeScript Core UI, logic, and interaction
Styling Tailwind CSS, ShadCN UI Responsive and appealing design
AI Backend Genkit, Google Gemini, ElevenLabs API Script analysis, image and audio generation
Hosting Firebase Hosting Deployment and scaling

 Application Architecture

Script to Video Studio - Table View

Step Description
User Input User pastes script into input panel.
Process Script Gemini AI processes the script: detects language, extracts characters, parses dialogues and scenes.
Update UI Voice configuration tab is shown to the user.
Select Voices User selects voice for each character from a dropdown list.
Generate Preview System initiates preview generation: portraits, scenes, and audio.
Generate Character Portraits Gemini AI generates a portrait image for each unique character.
Generate Storyboards Gemini AI creates a background scene for each dialogue group.
Generate Audio ElevenLabs generates text-to-speech audio clips for all dialogue lines.
Combine Preview All elements are merged in the VideoPreview panel with basic lipsync effect.
Interactive Playback Final preview shows scene + character + voice with timed playback.


Step-by-Step Workflow: From Text to Preview

1. Script Input & Analysis

Users paste their script into the text area and click "Analyze Script." This starts a Genkit flow using Google Gemini Pro to:

* Detect language (English or Hindi)

* Extract all unique character names and their gender

* Parse the script into a structured list of dialogue lines


2. Voice Configuration

In the "Voices" tab, users assign AI voices to each character using a dropdown menu (supported by **ElevenLabs voice profiles**). They can also choose the tone (serious, comedic, etc.) for the entire video.


3. Generate Video Preview

After configuration, users generate the preview. This launches three parallel processes:

* Portraits Generation: AI creates unique visuals for each character.

* Storyboards: AI develops the background scenes, including characters from the portraits.

* Audio: Each dialogue line becomes lifelike speech with the ElevenLabs API.


4. Playback & Lip-Syncing

The final part, the Video Preview Panel, combines everything:

* Characters appear in their scenes https://unhealthyirreparable.com/cit2c8ca?key=7566cfdb82de49ba4912160b26b7621f

* Their portraits animate as their audio plays (a basic lip-sync effect)

* The whole script plays scene-by-scene, creating a short animated film preview



Why This Matters?

* Writers can visualize their scripts before production

* Filmmakers can pitch ideas using animated storyboards

* Marketers can create narrative-driven explainers

* Educators can bring textbook scenes to life


All without needing video editing skills or expensive software.


What’s Next?

We are working on exciting future features:

* Full lip-sync using open-source models (SadTalker)

* Video file export (MP4)

* Multi-language voiceovers

* Real-time editing of generated assets



🌍 Explore Our Projects

Project Link
🎬 Telegram Bot https://tpi.li/nXPuWjXk
🍿 Movie Website https://cine-link-hub.vercel.app/
📝 Blogging Platform https://studio--blogger-showcase.us-central1.hosted.app/
💍 ShaadiCraft Page ShaadiCraft

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