OpenFocus

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AI Smart Screen Recording System - Audio Recording Feature

Overview

This system is an intelligent screen recording tool that supports click-to-zoom effects and multiple audio recording modes.

Disclaim

The code in this project is mainly generated by AI. Please double-check before using it!

Key Features

• ✅ Smart click-to-zoom effect
• ✅ Smooth camera movement
• ✅ Mouse pointer display & Click animation effects
• ✅ Mouse drag-to-select recording area
• ✅ Four audio recording modes:
  • No audio
  • System sound only
  • Microphone only
  • Mixed microphone and system sound

Installation

Requirements

• This application is only available for Windows, preferably Windows 11.

Direct Download

• You can directly download the executable from the Releases.

Usage Guide

1. Recording Area:
   • Default is full-screen recording.
   • Click "Select Recording Area" button and drag the mouse to select a custom area.
   • You can re-select the area or restore to full screen.
2. Zoom Factor: Set the magnification when clicking (1.0-2.5x).
3. Smooth Speed: Set the smoothness of camera movement (0.05-0.5). The higher the Smooth Speed, the faster your screen will move to follow your mouse.
4. Zoom Duration: Set how long the zoom effect lasts (0.3-3.0 seconds).
5. Audio Recording Mode: Choose how to record audio.
   • No Audio: Record video only.
   • System Sound Only: Record all sounds played by the computer.
   • Microphone Only: Record sound from the microphone input.
   • Microphone and System: Record both simultaneously and mix them.
6. Keyboard Shortcuts: Ctrl+F1 to start recording, Ctrl+F2 to stop and save recording.

(Files are saved in the program directory as Record_Timestamp.mp4.)

DIY Installation

If you want to run from source or customize the code:

1. Create Conda Environment

conda create -n OpenFocus python=3.10
conda activate OpenFocus

2. Install Python Dependencies

pip install -r requirements.txt

3. Install FFmpeg (Required for audio merging)

Windows:

1. Visit FFmpeg Official Website
2. Download the Windows build
3. Extract to any directory (e.g., C:/fmpeg)
4. Add C:/fmpeg/bin to your system PATH environment variable
5. Verify installation: Open command prompt and type ffmpeg -version

Quick Install (using Chocolatey):

choco install ffmpeg

Start Program

python main.py

Build EXE (Opetional)

pip install pyinstaller
pyinstaller main.spec

Technical Architecture

Core Logic

OpenFocus utilizes a high-performance, multi-stage pipeline designed for efficiency and visual quality:

1. High-Speed Capture: Uses a recording engine for low-overhead screen capture.
2. Synchronized Logging: Real-time logging of mouse movements, clicks, and window events.
3. Intelligent Post-Processing:
   • Dynamic zoom-to-click effects.
   • Smooth camera tracking and stabilization.
   • Virtual high-fidelity cursor rendering.
4. Automatic Assembly: Seamlessly merges high-quality video with synchronized system and microphone audio.

Tech Stack

• UI Framework: CustomTkinter
• Video Processing: OpenCV, mss
• Audio Recording: pyaudiowpatch
• Merging: FFmpeg
• Input Listening: pynput

License

Copyright 2026 Azikaban/Bob8259

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.