Python截取视频中的图片

Edited on In

安装

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pip install ffmpy -i https://mirrors.aliyun.com/pypi/simple/
pip3 install opencv-python -i https://mirrors.aliyun.com/pypi/simple/
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import os
import uuid
from ffmpy import FFmpeg

# 视频裁剪
def cut_out_video(video_path: str, output_dir: str, start_pix: tuple, size: tuple):
    ext = os.path.basename(video_path).strip().split('.')[-1]
    if ext not in ['mp4', 'avi', 'flv']:
        raise Exception('format error')
    result = os.path.join(output_dir, '{}.{}'.format(uuid.uuid1().hex, ext))
    ff = FFmpeg(inputs={video_path: None},
                outputs={
                    result: '-vf crop={}:{}:{}:{} -y -threads 5 -preset ultrafast -strict -2'.format(size[0], size[1],
                                                                                                     start_pix[0],
                                                                                                     start_pix[1])})
    print(ff.cmd)
    ff.run()
    return result


if __name__ == '__main__':
    print(cut_out_video(r'C:\Users\huyi\Desktop\test2.mp4', r'C:\Users\huyi\Desktop', (0, 0), (512, 512)))
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import cv2

vc = cv2.VideoCapture("f:\\Videos\\4K Tokkit\\dbxbqm22\\7257911883674668289.mp4")
# 检查视频是否成功打开
if not vc.isOpened():
    print("无法打开视频文件")
    exit()
fps = vc.get(cv2.CAP_PROP_FPS)

c = 0
num = round(fps)
while True:
    ret, frame = vc.read()
    pic_path = 'f:\\Videos\\4K Tokkit\\test/'
    if not ret:
        break
    if (c % round(fps) == 0):
        cv2.imwrite(pic_path + '7257911883674668289_' + str(c) + '.jpg', frame)
    c = c + 1
vc.release()
cv2.destroyAllWindows()

写入中文路径处理

cv2.imread和cv2.imwrite无法读写含中文的路径。

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import cv2
image = cv2.imdecode(np.fromfile('中文图片.png'), cv2.IMREAD_UNCHANGED)
cv2.imencode('.png', image)[1].tofile('保存_中文图片.png')

本文地址： https://github.com/maxzhao-it/blog/post/8ddf92f3/