import time
import turtle
import cv2
from PIL import Image, ImageTk
class Clock:
"""控制fps的时钟Clock类"""
def __init__(self):
self._old_start_time = time.perf_counter()
self._start_time = time.perf_counter()
def tick(self,fps=0):
"""返回每帧逝去的时间，如果fps不为0，则会等待直到时间大于1/fps"""
end_time = time.perf_counter()
elapsed_time = end_time - self._start_time
if fps!=0:
step = 1/fps
if elapsed_time < step: # 如果逝去的时间小于step则等待
time.sleep(step - elapsed_time)
self._old_start_time = self._start_time
self._start_time = time.perf_counter()
return time.perf_counter() - self._old_start_time
def getfps(self):
"""得到fps"""
t = time.perf_counter() - self._old_start_time
return round(1/t,2)
screen = turtle.getscreen()
screen.title('李兴球Python博客www.lixingqiu.com')
screen.setup(800,600)
cap = cv2.VideoCapture("汉服展.mp4")
canvas = screen.cv
fps = int(round(cap.get(cv2.CAP_PROP_FPS)))
frame_counter = int(cap.get(cv2.CAP_PROP_FRAME_COUNT))
print('帧率=',fps)
print('帧数=',frame_counter)
clock = Clock()
while True:
ret, frame = cap.read()
if not ret:
break
# Convert the frame to a Tkinter-compatible image
img = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
img = cv2.resize(img, (640, 480))
img = Image.fromarray(img)
img = ImageTk.PhotoImage(image=img)
# Update the canvas with the new image
canvas.create_image(-320, -240, anchor=turtle.TK.NW, image=img)
screen.update()
clock.tick(fps)
cap.release()
cv2.destroyAllWindows()
screen._root.destroy()
