MCP Video App - Setup & Run Instructions

What is MCP Video App?

The MCP Video App is a local web application that allows users to upload and process videos using FFmpeg. It runs on Node.js and provides a browser-based interface for selecting and processing video files. This server is intended for developers or users who need a simple video processing tool on their own machine.

How to use MCP Video App?

To use it, follow the setup steps: install Node.js (v14+) and FFmpeg, create the project folder, run npm init -y, install dependencies (express, cors, multer, morgan, body-parser), create the server.js and frontend files (from the provided artifacts), create uploads/ and processed/ directories, then start the server with node server.js. Access the app in a browser at http://localhost:3000.

Key features of MCP Video App

• Video uploads handled by Multer (default 100MB file size limit)
• Video processing powered by FFmpeg
• Separate directories for uploads and processed videos
• Web frontend served as static files from public/
• Local Express server with CORS and logging (Morgan)

Use cases of MCP Video App

• Upload a video and apply a processing operation (e.g., format conversion, trimming)
• Run a local video processing pipeline without external services
• Test or develop video processing workflows using FFmpeg through a web UI

FAQ from MCP Video App

What are the prerequisites for running this app?

You need Node.js (v14 or newer) and FFmpeg installed on your system. FFmpeg is essential for all video processing operations.

How do I fix "FFmpeg not found" errors?

Make sure FFmpeg is installed and accessible from the command line. On Windows, add FFmpeg to your PATH. On Mac, run brew install ffmpeg. On Linux, run sudo apt install ffmpeg.

What is the default upload file size limit?

The default file size limit for video uploads is 100MB.

What should I check if uploads fail?

Verify that the uploads/ directory exists and has write permissions. Check the browser console for JavaScript errors and the server logs for any error messages.

Video processing fails – what should I do?

First confirm FFmpeg is correctly installed and available. Then check the server logs for error messages. If the issue persists, try uploading a smaller test video.