Screen Recorder

A Screen Recorder built using Python

This repository now contains two scripts:

• screen_recorder.py — screen recording only (original).
• screen_recorder_with_audio.py — screen recording + system audio (Windows / WASAPI loopback).

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1) screen_recorder.py (Video only)

Modules Used

1. OpenCV
2. NumPy
3. pyautogui
4. datetime

About

Records the screen and saves an .avi output file with date & time in the filename.

For User

• When the program is executed, a preview window opens which can be minimized without any hinderance to recording.
• To stop the recording you need to open the preview window and press e.
• Do not exit the program by crossing out the preview window or python shell as it may create a non viewable video file.

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2) screen_recorder_with_audio.py (Video + system audio)

What it does

• Records the full screen video.
• Records system audio (“what you hear”) using Windows WASAPI loopback.
• Automatically finds ffmpeg if installed, otherwise it installs a bundled FFmpeg via imageio-ffmpeg on first run.
• Produces a final screen_with_audio_<timestamp>.mp4.

Note: This script is intended for Windows. For macOS/Linux, system-audio capture typically needs different routing/loopback setup.

Extra modules used by this script

• PyAudioWPatch (WASAPI loopback capture)
• imageio-ffmpeg (auto-provides ffmpeg.exe if missing)
• threading, wave, subprocess, shutil (standard library)

Installation

pip install opencv-python pyautogui numpy
pip install PyAudioWPatch

Controls / Notes

• A preview window opens; you can minimize it while recording.
• To stop: focus the preview window and press e.
• The script may create temporary/intermediate files (e.g., .avi for video and .wav for audio) before muxing into the final .mp4.

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