OV2640 UC-265 and Esp32 problem video streaming

Camera Breakout Boards
1

Hello,

  1. Where did you get the camera module(s)?
    Botland.pl

  2. Model number of the product(s)?
    ArduCam OV2640 2 MPx 1600x1200px 60fps with LS-4011 M12x0.5 (UC-265)

  3. What hardware/platform were you working on?
    Esp32-WROVER-E / Arduino IDE

  4. Instructions you have followed. (link/manual/etc.)
    I used this example in Arduino IDE (ESP32 → camera → camerawebserwer)
    arduino-esp32/libraries/ESP32/examples/Camera/CameraWebServer at master · espressif/arduino-esp32 · GitHub

  5. Problems you were having?
    I have a problem with video image (stream in real time). On the picture are black blinking pixels.

    video
    video777×493 230 KB

  6. The dmesg log from your hardware?

  7. Troubleshooting attempts you’ve made?
    Reduction XCLK frequency with 20MHz to 6 MHz. Image is better but does not fully solve the problem.

  8. What help do you need?
    I need a solution how to improve the video image. I’m new in ArduCam world. Thanks for help.