python: Screen Recording

 用VLC media player播放录屏文件

"""
python.exe -m pip install --upgrade pip
pip install pyautogui
pip install opencv-python
pip install pywin32

python 3.11

"""


# This is a sample Python script.
import cv2
import pyautogui
import numpy as np
import os
import win32api
from win32api import GetSystemMetrics
from win32.lib import win32con


import time

# Press Shift+F10 to execute it or replace it with your code.
# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.


def win32screen():
    # Take resolution from system automatically
    w = GetSystemMetrics(0)
    h = GetSystemMetrics(1)
    SCREEN_SIZE = (w, h)
    fourcc = cv2.VideoWriter_fourcc(*"XVID")
    out = cv2.VideoWriter("recording.mp4", fourcc, 20.0, (SCREEN_SIZE))
    tim = time.time()
    tp = int(input('How many times you want to record screen?->(Define value in Seconds): '))
    tp = tp + tp
    f = tim + tp
    while True:
        img = pyautogui.screenshot()
        frame = np.array(img)
        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
        out.write(frame)
        tu = time.time()
        if tu > f:
            break
    cv2.destroyAllWindows()
    out.release()



def screen(output:str):
    """

    :param outputfile:
    :return:
    """
    #output = "video.avi"
    img = pyautogui.screenshot()
    img = cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
    # get info from img
    height, width, channels = img.shape
    # Define the codec and create VideoWriter object
    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    out = cv2.VideoWriter(output, fourcc, 20.0, (width, height))

    while (True):
        try:
            img = pyautogui.screenshot()
            image = cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)
            out.write(image)
            StopIteration(0.5)
        except KeyboardInterrupt:
            break

    out.release()
    cv2.destroyAllWindows()




def record_screen(output_file, fps=30):
    """

    :param output_file:
    :param fps:
    :return:
    """
    # 获取屏幕宽度和高度
    screen_width, screen_height = pyautogui.size()

    # 创建视频编码器
    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    out = cv2.VideoWriter(output_file, fourcc, fps, (screen_width, screen_height))

    # 设置屏幕录制区域
    screen_area = (0, 0, screen_width, screen_height)

    while True:
        # 捕获屏幕图像
        img = pyautogui.screenshot(region=screen_area)

        # 转换图像颜色空间
        frame = cv2.cvtColor(np.array(img), cv2.COLOR_RGB2BGR)

        # 将图像写入视频文件
        out.write(frame)

        # 按下q键停止录屏
        if cv2.waitKey(1) == ord('q'):
            break

    # 释放资源
    out.release()
    cv2.destroyAllWindows()
    print(f'录制已保存为{output_file}')


def main():
    """

    :return:
    """
    output_file = 'screencast.mp4'
    fps = 30

    print('按下q键停止录屏')
    record_screen(output_file, fps)


def print_hi(name):
    """

    :param name:
    :return:
    """
    # Use a breakpoint in the code line below to debug your script.
    print(f'Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    print_hi('PyCharm,涂聚文，Geovin Du')
    main()
# See PyCharm help at https://www.jetbrains.com/help/pycharm/