Direct virtual webcam can be used by other softwares (with code)

[cyysky]

tested only at window 11 with python 3.10 with cuda
install obs
pip install pyvirtualcam

stand alone code for testing

import cv2
import pyvirtualcam

# Open a video capture stream (0 is the default webcam)
cap = cv2.VideoCapture(0)

# Check if the webcam is opened correctly
if not cap.isOpened():
    print("Error: Could not open webcam.")
    exit()

# Get the width and height of the video stream
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))

with pyvirtualcam.Camera(width, height, fps=30) as cam:
    print(f'Using virtual camera: {cam.device}')

    while True:
        ret, frame = cap.read()

        if not ret:
            print("Error: Could not read frame.")
            break

        # Optionally, perform some OpenCV operations on the frame
        # For example, convert to grayscale
        # frame = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
        frame_rgb = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)

        # Display the frame in a window
        #cv2.imshow('Virtual Webcam', frame)

        # Send the frame to the virtual camera
        cam.send(frame_rgb)

        # Wait for the next frame
        cam.sleep_until_next_frame()

        # Press 'q' to exit the loop
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break

# Release the video capture stream and close OpenCV windows
cap.release()
cv2.destroyAllWindows()

modified ui.py

def webcam_preview():
    if modules.globals.source_path is None:
        # No image selected
        return
    
    global preview_label, PREVIEW

    with pyvirtualcam.Camera(1024, 576, fps=30) as cam:    #<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< New line added
        cap = cv2.VideoCapture(0)  # Use index for the webcam (adjust the index accordingly if necessary)    
        cap.set(cv2.CAP_PROP_FRAME_WIDTH, 960)  # Set the width of the resolution
        cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 540)  # Set the height of the resolution
        cap.set(cv2.CAP_PROP_FPS, 60)  # Set the frame rate of the webcam
        PREVIEW_MAX_WIDTH = 960
        PREVIEW_MAX_HEIGHT = 540

        preview_label.configure(image=None)  # Reset the preview image before startup

        PREVIEW.deiconify()  # Open preview window

        frame_processors = get_frame_processors_modules(modules.globals.frame_processors)

        source_image = None  # Initialize variable for the selected face image

        while True:
            ret, frame = cap.read()
            if not ret:
                break

            # Select and save face image only once
            if source_image is None and modules.globals.source_path:
                source_image = get_one_face(cv2.imread(modules.globals.source_path))

            temp_frame = frame.copy()  #Create a copy of the frame

            for frame_processor in frame_processors:
                temp_frame = frame_processor.process_frame(source_image, temp_frame)

            image = cv2.cvtColor(temp_frame, cv2.COLOR_BGR2RGB)  # Convert the image to RGB format to display it with Tkinter
            #print(image.shape)
            cam.send(image)         #<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< New line added
            image = Image.fromarray(image)
            image = ImageOps.contain(image, (PREVIEW_MAX_WIDTH, PREVIEW_MAX_HEIGHT), Image.LANCZOS)
            image = ctk.CTkImage(image, size=image.size)
            preview_label.configure(image=image)
            ROOT.update()

        cap.release()
        PREVIEW.withdraw()  # Close preview window when loop is finished

[hacksider]

Thanks for this contribution! Will try to add this with a button later (or you can also do that if you have a free time, I'll merge it)

[cyysky]

okay, what you prefer the button name and it's behaviour? and also I add some except handling.

[mrharrison007]

Nice, just starting looking into creating a virtual cam device using pyvirtualcam and pipe Deep Live Cam's video output to the virtual cam's input.

[vlednerk]

okay, what you prefer the button name and it's behaviour? and also I add some except handling.

Dude u just should do this or tell us where those code should be =D