视频智能集锦新年优惠活动

import cv2
import subprocess

def extract_keyframes(video_path, output_folder):
    cap = cv2.VideoCapture(video_path)
    frame_count = 0
    success = True

    while success:
        success, frame = cap.read()
        if success:
            frame_filename = f"{output_folder}/frame_{frame_count}.jpg"
            cv2.imwrite(frame_filename, frame)
            frame_count += 1

    cap.release()

def create_video_from_frames(frame_folder, output_video_path, fps=30):
    frames = [img for img in os.listdir(frame_folder) if img.endswith(".jpg")]
    frames.sort()

    frame = cv2.imread(os.path.join(frame_folder, frames[0]))
    height, width, layers = frame.shape

    fourcc = cv2.VideoWriter_fourcc(*'mp4v')
    video = cv2.VideoWriter(output_video_path, fourcc, fps, (width, height))

    for frame in frames:
        video.write(cv2.imread(os.path.join(frame_folder, frame)))

    cv2.destroyAllWindows()
    video.release()

# 使用示例
video_path = "path_to_your_video.mp4"
output_folder = "keyframes"
output_video_path = "output_video.mp4"

extract_keyframes(video_path, output_folder)
create_video_from_frames(output_folder, output_video_path)