更新時間：2020年03月02日 13:59:52 作者：linnahan https://www.jb51.net/article/181757.htm
import time,threading
from datetime import datetime
from PIL import ImageGrab
from cv2 import *
import numpy as np
from pynput import keyboard
def video_record(): # 錄入視頻
global name
name = datetime.now().strftime('%Y-%m-%d %H-%M-%S') # 當前的時間（當文件名）
screen = ImageGrab.grab() # 獲取當前屏幕
width, high = screen.size # 獲取當前屏幕的大小
fourcc = VideoWriter_fourcc('X', 'V', 'I', 'D') # MPEG-4編碼,文件后綴可為.avi .asf .mov等
video = VideoWriter('%s.avi' % name, fourcc, 15, (width, high)) # （文件名，編碼器，幀率，視頻寬高）
print('3秒后開始錄制----') # 可選
time.sleep(3)
print('開始錄制!')
global start_time
start_time = time.time()
while True:
if flag:
print("錄制結束！")
global final_time
final_time = time.time()
video.release() #釋放
break
im = ImageGrab.grab() # 圖片為RGB模式
imm = cvtColor(np.array(im), COLOR_RGB2BGR) # 轉為opencv的BGR模式
video.write(imm) #寫入
# time.sleep(5) # 等待5秒再次循環
def on_press(key): # 監聽按鍵
global flag
if key == keyboard.Key.home:
flag = True # 改變
return False # 返回False，鍵盤監聽結束！
def video_info(): # 視頻信息
video = VideoCapture('%s.avi' % name) # 記得文件名加格式不要錯！
fps = video.get(CAP_PROP_FPS)
Count = video.get(CAP_PROP_FRAME_COUNT)
size = (int(video.get(CAP_PROP_FRAME_WIDTH)), int(video.get(CAP_PROP_FRAME_HEIGHT)))
print('幀率=%.1f'%fps)
print('幀數=%.1f'%Count)
print('分辨率',size)
print('視頻時間=%.3f秒'%(int(Count)/fps))
print('錄制時間=%.3f秒'%(final_time-start_time))
print('推薦幀率=%.2f'%(fps*((int(Count)/fps)/(final_time-start_time))))
if name == 'main':
flag = False
th = threading.Thread(target=video_record)
th.start()
with keyboard.Listener(on_press=on_press) as listener:
listener.join()
time.sleep(1) # 等待視頻釋放過后
video_info()