Capture video with custom settings (exposure, gain, white balance, brightness, saturation, etc) for Pi Camera Module 3.

capture_video.py

#!/usr/bin/python3

# Video result:
# https://www.facebook.com/idriszmyblog/videos/6655806037765900

import time
from gpiozero import Button

from picamera2 import Picamera2
from picamera2.encoders import H264Encoder
from picamera2.outputs import FfmpegOutput
from libcamera import controls

SW1 = Button(21)
SW2 = Button(16)
SW3 = Button(20)

picam2 = Picamera2()

video_config = picam2.create_video_configuration({"size": (1920, 1080)})
picam2.configure(video_config)

picam2.set_controls({"AeEnable": False})
picam2.set_controls({"ExposureTime": 20000})
picam2.set_controls({"AnalogueGain": 2.0})
picam2.set_controls({"AwbEnable": False})
picam2.set_controls({"Contrast": 1.0})
picam2.set_controls({"Brightness": 0.1})
picam2.set_controls({"Saturation": 1.1})
picam2.set_controls({"AfMetering": controls.AfMeteringEnum.Auto})
picam2.set_controls({"AfMode": controls.AfModeEnum.Auto})

picam2.start_preview(True)
picam2.autofocus_cycle()

encoder = H264Encoder(10000000)
output = FfmpegOutput("test.mp4")

picam2.start_recording(encoder, output)
picam2.autofocus_cycle()

try:
    while True:
        if SW1.is_pressed:
            picam2.autofocus_cycle()

        elif SW2.is_pressed:
            continue

        elif SW3.is_pressed:
            picam2.stop_recording()
            picam2.stop_preview()

except KeyboardInterrupt:
    picam2.stop_recording()
    picam2.stop_preview()