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27 lines
670 B
Python
27 lines
670 B
Python
import subprocess
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import os
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import uuid
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def generate_screenshot(video_path: str, output_dir: str, timestamp: int, index: int) -> str:
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"""
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使用 ffmpeg 生成截图，返回生成图片路径
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"""
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os.makedirs(output_dir, exist_ok=True)
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ids=str(uuid.uuid4())
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output_path = os.path.join(output_dir, f"screenshot_{str(index)+ids}.jpg")
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command = [
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"ffmpeg",
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"-ss", str(timestamp),
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"-i", video_path,
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"-frames:v", "1",
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"-q:v", "2", # 图像质量
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output_path,
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"-y" # 覆盖
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]
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subprocess.run(command, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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return output_path
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