“ 示例代码以下是一个简单的示例代码,展示如何使用OpenCV和FFmpeg进行视频处理:
```python
import cv2
import subprocess
def extract_key_frames(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:04d}.jpg"
cv2.imwrite(frame_filename, frame)
frame_count += 1
cap.release()
def create_video_from_frames(frame_folder, output_video_path, fps=30):
frame_files = sorted([f for f in os.listdir(frame_folder) if f.endswith('.jpg')])
frame_paths = [os.path.join(frame_folder, f) for f in frame_files]
subprocess.run(['ffmpeg', '-framerate', str(fps), '-i', frame_paths[0], '-c:v', 'libx264', output_video_path])
# 示例调用
extract_key_frames('input_video.mp4', 'output_frames')
create_video_from_frames('output_frames', 'output_video.mp4')
```
原始链接:https://cloud.tencent.com/developer/information/%E8%A7%86%E9%A2%91%E6%99%BA%E8%83%BD%E9%9B%86%E9%94%A6%E6%96%B0%E8%B4%AD%E6%B4%BB%E5%8A%A8
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