修:draw-ui / oil-motion 原被当子模块指针收录 ⇒ 改为正常文件入库(两份内容原先对别人是空的)
一、问题(本轮实测)
`draw-ui` 与 `oil-motion` 目录里**各自带一个内嵌 `.git`** ⇒ 上一次提交把它们记成了 **gitlink(子模块指针)**
⇒ 仓库里只存了一个不属于任何远端的 commit id,**别人克隆下来这两份是空的** ✗(`git status` 显示 ` m draw-ui` / ` m oil-motion` = 子模块内容有改动)。
二、处置(可回退)
· 把两处的 `.git` **挪走**(⛔ 不是删除)⇒ `归档/内嵌git-20261008/{draw-ui,oil-motion}.git`;
· `git rm --cached` 掉那两个 gitlink,再 `git add` 两个目录 ⇒ **按正常文件入库**(内容才真的进仓库)。
三、副作用(如实记)
挪走 `.git` 后,这两个技能**不能再原地 `git pull` 取上游更新**(要更新得重新拉一份覆盖);
如需恢复其本地仓库,把 `归档/内嵌git-20261008/` 里的 `.git` 挪回原处即可。
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#!/usr/bin/env python3
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"""确定性提取视频首帧与实际尾帧。"""
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from __future__ import annotations
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import subprocess
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from pathlib import Path
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def extract_edge_frame(video: str | Path, output: str | Path, edge: str) -> None:
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source = Path(video).expanduser().resolve()
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target = Path(output).expanduser().resolve()
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if not source.is_file():
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raise FileNotFoundError(f"视频不存在:{source}")
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if edge not in {"head", "tail"}:
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raise ValueError("edge 必须是 head 或 tail")
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target.parent.mkdir(parents=True, exist_ok=True)
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command = ["ffmpeg", "-hide_banner", "-loglevel", "error", "-y"]
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if edge == "tail":
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command.extend(["-sseof", "-3", "-i", str(source), "-update", "1"])
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else:
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command.extend(["-i", str(source), "-frames:v", "1"])
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command.append(str(target))
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completed = subprocess.run(command, capture_output=True, text=True)
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if completed.returncode != 0 or not target.is_file() or target.stat().st_size == 0:
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raise RuntimeError(
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f"无法提取视频{edge}帧:{completed.stderr.strip() or source}"
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)
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def extract_first_frame(video: str | Path, output: str | Path) -> None:
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extract_edge_frame(video, output, "head")
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def extract_last_frame(video: str | Path, output: str | Path) -> None:
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extract_edge_frame(video, output, "tail")
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