v4l2loopback.py

import subprocess
import os

def create_virtcam(video_nr):
    device_path = f'/dev/video{video_nr}'
    if not os.path.exists(device_path):
        print(f"Creating it at {device_path}...")
        try:
            subprocess.run([
                'sudo',
                'modprobe',
                'v4l2loopback',
                f'video_nr={video_nr}', 
                'width=1280',
                'height=720',
                'pixelformat=YUYV',
                'card_label="Samsung"', 
                'exclusive_caps=1'
            ], check=True)
            print("Virtual Camera created successfully.")
            return True
        except subprocess.CalledProcessError as e:
            print(f"Error: {e}")
            return False
    else:
        print(f"Virtual Camera already exists at {device_path}.")
        return True