Kurokesu C3_4K resolutions

Kurokesu-C3_4K-resolutions.py

import cv2

def get_framerate(prev_time=[0], fps=[30]):
    current_time = cv2.getTickCount()
    elapsed = (current_time - prev_time[0]) / cv2.getTickFrequency()
    prev_time[0] = current_time
    fps[0] = (1.0 / elapsed * 0.1) + (fps[0] * 0.9)
    return fps[0]

cam = cv2.VideoCapture(0)
resolutions = [(3840,2160), (2592,1944), (2048,1563), (1920,1080), (1600,1200),
               (1280,720), (1280,960), (800,600), (640,480), (320,240)]

for w, h in resolutions:
    print(f"testing {w}x{h}...")
    cam.set(cv2.CAP_PROP_FRAME_WIDTH, w)
    cam.set(cv2.CAP_PROP_FRAME_HEIGHT, h)

    for _ in range(60):
        ret, frame = cam.read()
        fps = get_framerate()
        cv2.putText(frame, f'fps: {fps:.0f}', (10, 30), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
        cv2.putText(frame, f'res: {w}x{h}', (10, 80), cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)

    cv2.imwrite(f"{w}x{h}.jpg", frame)