[OpenCV video processing with SRWorks]

Seems like the other view is available if you set the correct frame size (reference post).

Here is how you can do it (note that the 2nd view is available below the 1st one).
 

import argparse
import cv2 as cv

def get_args():
    parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
    parser.add_argument("--cam", type=int, default=0, help="camera index")
    args = parser.parse_args()
    return args

def play_video(idx):
    cap = cv.VideoCapture(idx)
    width = cap.get(cv.CAP_PROP_FRAME_WIDTH)
    height = cap.get(cv.CAP_PROP_FRAME_HEIGHT)
    print(f"default size: {width} x {height}")
    cap.set(cv.CAP_PROP_FRAME_WIDTH, width)
    cap.set(cv.CAP_PROP_FRAME_HEIGHT, height*2)
    if not cap.isOpened():
        print("Cannot open camera")
        exit()
    print(f"Showing camera {idx} with backend {cap.getBackendName()}")
    cv.namedWindow("Vive Pro Front cameras: Left=Bottom, Right=Top")
    while True:
        # Capture frame-by-frame
        ret, frame = cap.read()
        # if frame is read correctly ret is True
        if not ret:
            print("Can't receive frame (stream end?). Exiting ...")
            break
        # Our operations on the frame come here
        # Display the resulting frame
        cv.imshow("Vive Pro Front cameras: Left=Bottom, Right=Top", frame)
        k = cv.waitKey(1)
        if k == ord('q') or k == 27:
            break
    # When everything done, release the capture
    cap.release()
    cv.destroyAllWindows()


if __name__=="__main__":
    args = get_args()
    play_video(args.cam)

 

 

[How to access the Front Stereo Pair for Vive Pro with C++ on Linux?]

Seems it was fairly easy after looking at the output of :

v4l2-ctl --device /dev/video0 --list-formats-ext # /dev/video0 corresponds to the VivePro' camera

I found that it the following entries among many:
 

ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture

	[0]: 'YUYV' (YUYV 4:2:2)
		Size: Discrete 640x480
			Interval: Discrete 0.017s (60.000 fps)
		Size: Discrete 612x460
			Interval: Discrete 0.017s (60.000 fps)
		Size: Discrete 612x920
			Interval: Discrete 0.019s (52.000 fps)
			Interval: Discrete 0.018s (55.000 fps)
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.017s (60.000 fps)
		Size: Discrete 320x240
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 352x288
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 432x240
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 640x360
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 800x448
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 800x600
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 864x480
			Interval: Discrete 0.033s (30.000 fps)
		Size: Discrete 640x481
			Interval: Discrete 0.017s (60.000 fps)
		Size: Discrete 640x960
			Interval: Discrete 0.017s (60.000 fps)
		Size: Discrete 612x920
			Interval: Discrete 0.019s (52.000 fps)
			Interval: Discrete 0.018s (55.000 fps)
			Interval: Discrete 0.033s (30.000 fps)
			Interval: Discrete 0.017s (60.000 fps)

So by default it was showing 640x480 but one can also access 640x960 which is 2*(640x480).

The attached file shows how to access it.

vive_pro_front_stereo.cpp

[(Vive) OpenXR Tutorial for Native C++]

Hi @bipul mohanto, maybe you can have a look at the following using OpenXR with Godot.
 

1. Using OpenCV C++ code with Godot 3.5.2 on Ubuntu 20.04

2. Display independent images in the left-right views

Hope it helps!

[How to access the Front Stereo Pair for Vive Pro with C++ on Linux?]

I have the Vive Pro and I can access one of the front cameras (the right one specifically) with OpenCV's API and C++ (cv::VideoCapture()). How can I access both the front cameras? I am using Ubuntu 20.04.

Thanks and best regards,
Milind