System Requirements Document (SRD) for winter-app

1. Introduction

The winter-app is a creative and user-friendly application designed to help users generate customized video content by merging multiple stock videos. This tool is particularly useful for social media marketers, content creators, and individuals who need quick, high-quality video compilations. The app allows users to set the duration of the final video, ensures voice muting, and provides options for randomization and customization.

This document outlines the system requirements for the winter-app, incorporating the latest user request to include a configurable voice mute feature with a random timer option.

2. System Overview

The winter-app is a video generation platform that automates the process of merging stock videos into a seamless final product. Users can upload their own stock videos or select from a pre-loaded library within the app. The app provides flexibility in setting the duration of the final video and ensures that all audio is muted by default. Additionally, users can configure the mute duration and randomize the sequence of videos for a unique and personalized output.

Key features include:

• Upload or select stock videos from the app's library.
• Randomized video selection and merging.
• Configurable video duration (e.g., 5 minutes, 10 minutes).
• Voice muting with a configurable mute duration.
• User-friendly interface for quick and efficient video creation.

The app is tailored for users in Pakistan (PK), with locale-specific defaults such as time zones and currency where applicable.

3. Functional Requirements

• As a User, I should be able to upload my own stock videos or select from a pre-loaded library.
• As a User, I should be able to set the duration of the final video (e.g., 5 minutes, 10 minutes).
• As a User, I should be able to randomize the sequence of videos in the final compilation.
• As a User, I should be able to mute the audio of the final video.
• As a User, I should be able to configure the mute duration (e.g., 5 minutes).
• As a User, I should be able to preview the final video before downloading it.

4. User Personas

4.1 Social Media Marketer

• Description: A professional who creates engaging video content for social media platforms.
• Goals: Quickly generate high-quality videos with minimal effort.
• Needs: Randomized video selection, configurable duration, and muted audio for adding custom background music.

4.2 Content Creator

• Description: An individual who produces video content for platforms like YouTube, TikTok, or Instagram.
• Goals: Create unique and personalized video compilations.
• Needs: Ability to upload custom stock videos, configure mute duration, and preview the final output.

4.3 Casual User

• Description: A non-professional user who wants to create videos for personal use or sharing with friends.
• Goals: Simple and intuitive video creation process.
• Needs: Pre-loaded stock video library, randomization, and easy-to-use interface.

5. Visuals Colors and Theme

The winter-app will feature a unique and modern color palette inspired by the winter season, evoking feelings of creativity, freshness, and simplicity.

• Background: #F0F8FF (Alice Blue)
• Surface: #E6E6FA (Lavender)
• Text: #2F4F4F (Dark Slate Gray)
• Accent: #4682B4 (Steel Blue)
• Muted Tones: #B0C4DE (Light Steel Blue)

This palette ensures a clean and visually appealing interface that aligns with the app's purpose and target audience.

6. Signature Design Concept

"The Winter Wonderland Experience"

The winter-app homepage will transport users into a serene winter wonderland. Upon landing, users will see a dynamic, animated snow globe in the center of the screen. Inside the snow globe, miniature stock video thumbnails will float around like snowflakes. Users can interact with the snow globe by shaking it (via mouse drag or touch), causing the thumbnails to shuffle and rearrange.

Key features of the homepage:

• Animation: Smooth snowflake-like transitions for video thumbnails.
• Interaction: Users can "shake" the snow globe to randomize video selections.
• Color Shifts: The background will subtly transition between shades of blue and white, mimicking the changing hues of a winter sky.
• Micro-interactions: Hovering over a thumbnail will enlarge it slightly, revealing a short preview of the video.
• Call-to-Action: A glowing "Create Your Video" button at the base of the snow globe, pulsating gently to draw attention.

This design ensures an unforgettable first impression while emphasizing the app's core functionality.

7. Non-Functional Requirements

• The app must load the homepage within 3 seconds on a standard internet connection.
• The video generation process should not exceed 1 minute for a 5-minute video.
• The app must support both desktop and mobile platforms.
• The app must ensure data security for uploaded videos.
• The app must comply with local regulations in Pakistan regarding data privacy.

8. Tech Stack

Frontend

• React for Web
• React Native for Mobile App

Backend

• Python
• FastAPI

Database

• MySQL (with Alembic for migrations)

AI Models

• GPT 5.4 for user-friendly responses
• Google Nano Banana for image generation

AI Tools

• Langchain
• Litellm for LLM Routing

Orchestration

• Docker
• Kubernetes

9. Assumptions and Constraints

Assumptions

• Users will have access to a stable internet connection.
• The app will primarily target users in Pakistan, with English and Urdu language support.
• Users will prefer pre-loaded stock videos but may also upload their own.

Constraints

• The app must operate within the storage and processing limits of the selected cloud infrastructure.
• The video generation process must adhere to a maximum duration of 1 minute for optimal user experience.

10. Glossary

• Stock Video: Pre-recorded video clips available for use in video projects.
• Mute Duration: The length of time for which the audio in a video is muted.
• Randomization: The process of shuffling or rearranging video clips in a non-sequential order.
• Snow Globe: A decorative object containing a miniature scene surrounded by liquid and "snowflakes" that move when shaken.