Python を使用して MP4 形式と GIF 形式の間で変換する方法

import glob

import cv2
from PIL import Image


def convert_mp4_to_jpgs(input_file):
# 先将mp4文件的所有帧读取出保存为图片
video_capture = cv2.VideoCapture(input_file)
still_reading, image = video_capture.read()
frame_count = 0
while still_reading:
cv2.imwrite(f"output/frame_{frame_count:03d}.jpg", image)
# read next image
still_reading, image = video_capture.read()
frame_count += 1


def convert_images_to_gif(output_file):
# 读取目录下图片，用Pillow模块的Image和所有图片合并
# 成一张gif
images = glob.glob(f"output/*.jpg")
images.sort()
frames = [Image.open(image) for image in images]
frame_one = frames[0]
frame_one.save(output_file, format="GIF", append_images=frames[1:],
 save_all=True, duration=40, loop=0)


def convert_mp4_to_gif(input_file, output_file):
convert_mp4_to_jpgs(input_file)
convert_images_to_gif(output_file)


if __name__ == "__main__":
convert_mp4_to_gif("demo.mp4", "output.gif")

frame_one.save(output_file, format="GIF", append_images=[f for i, f in enumerate(frames[1:]) if i % 2 == 0],
 save_all=True, duration=40, loop=0)

def mp4_to_gif2():
clip = VideoFileClip("demo.mp4")
clip.write_gif("output2.gif")