[BUG]rk3588 get usb camera green image

[erquren]

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>

int main() {
cv::VideoCapture cap;
cap.open(0);
cv::Mat bgr;
cap >> bgr;
cv::imwrite("test_get_camera.jpg", bgr);
return 0;
}

devpath = /dev/video0
driver = uvcvideo
card = UVC Camera (046d:081d)
bus_info = usb-xhci-hcd.7.auto-1
version = 60119
capabilities = 84a00001
device_caps = 4200001
fmt = YUYV 4:2:2 56595559
fmt = Motion-JPEG 47504a4d
size = 640 x 480 100.00
size = 160 x 120 6.25
size = 176 x 144 8.25
size = 320 x 176 18.33
size = 320 x 240 25.00
size = 432 x 240 33.75
size = 352 x 288 33.00
size = 544 x 288 51.00
size = 640 x 360 75.00
size = 752 x 416 84.38
size = 800 x 448 89.80
size = 864 x 480 94.81
size = 960 x 544 91.76
size = 1024 x 576 90.42
size = 800 x 600 92.80
size = 1184 x 656 87.91
size = 960 x 720 88.89
size = 1280 x 720 86.67
size = 1392 x 768 85.75
size = 1504 x 832 84.91
size = 1600 x 896 84.29
size = 1280 x 960 85.00
size = 1280 x 1024 84.69
size = 1600 x 1200 83.20
fps = 1 / 30 0.00
fps = 1 / 24 6.00
fps = 1 / 20 10.00
fps = 1 / 15 15.00
fps = 1 / 10 20.00
fps = 2 / 15 22.50
fps = 1 / 5 25.00
cap_pixelformat = 47504a4d MJPG
cap_width = 640
cap_height = 480
bytesperline: 0
cap_numerator = 1
cap_denominator = 30
requestbuffers.count = 3

[erquren]

when i use python

import cv2 as cv

cap = cv.VideoCapture(0)
ret,fream = cap.read()
cv.imwrite("aasd.jpg",fream)

it can get normal image