Extracts timed subtitles from local video/audio files using Whisper. Outputs SRT format with accurate timestamps. Handles complex filenames automatically. Use when user asks to "extract subtitles", "get subtitles", "transcribe video", "识别字幕", "提取字幕", or "获取字幕".
インストールする前に、エージェントに与えられる指示の中身を確認できます。
Extract timed subtitles (SRT) from local video/audio files using OpenAI Whisper.
Scripts: All scripts are in
scripts/relative to this SKILL.md.
- [ ] Step 1: Environment check (Whisper + FFmpeg)
- [ ] Step 2: Input validation (file exists, has audio stream)
- [ ] Step 3: Detect language (auto or user-specified)
- [ ] Step 4: Run extraction script
- [ ] Step 5: Verify output and report
which whisper
which ffprobe
| Result | Action |
|---|---|
| whisper found | Continue |
| whisper missing | brew install openai-whisper (macOS) or pip install openai-whisper |
| ffprobe missing | brew install ffmpeg |
en or zh as common options--language flag values: en, zh, ja, ko, fr, de, es, etc.bun scripts/extract_subtitles.ts "<video_path>" [language] [model]
Parameters:
| Parameter | Default | Description |
|---|---|---|
| video_path | (required) | Input video/audio file |
| language | en | Language code |
| model | auto by duration | Whisper model |
Model auto-selection (by duration):
| Video duration | Model | Approx. speed (CPU) |
|---|---|---|
| < 2 min | medium | ~2-3 min |
| 2-30 min | turbo | ~1x duration |
| > 30 min | base | fastest |
The script automatically handles:
Known issues:
| Issue | Solution |
|---|---|
FP16 not supported on CPU warning | Normal on Mac CPU, auto falls back to FP32 |
| MPS NaN errors | Do NOT use --device mps, script uses CPU |
Script automatically reports:
Basic extraction:
User: 帮我提取这个视频的字幕
→ bun scripts/extract_subtitles.ts "video.mp4" en
With language specified:
User: Extract English subtitles from this video
→ bun scripts/extract_subtitles.ts "video.mp4" en
Chinese video:
User: 提取中文字幕
→ bun scripts/extract_subtitles.ts "video.mp4" zh
Long video with specific model:
User: 提取这个一小时视频的字幕
→ bun scripts/extract_subtitles.ts "video.mp4" en base
まだレビューはありません。使ってみた感想をお寄せください。
概要と使いどころ
Checks and fixes Chinese copywriting with autocorrect-backed workflows for text and single-file Markdown/TXT inputs. Use when user asks to normalize Chinese punctuation, spacing, full-width/half-width usage, or copywriting style. Also triggers for "校对", "检查排版", "中英文空格", "全角半角".
日本語の概要は準備中です。原文の説明を表示しています。
Optimizes natural-language image requests and rough prompts into ready-to-use GPT Image 2.5 prompts using the official prompting guide as a live reference. Use when users ask to improve image prompts, 优化生图提示词, 把想法变成提示词, or write prompts for GPT Image 2.5 Flare or Sunburst. Produces prompt text, not images, unless the user explicitly asks to generate.
日本語の概要は準備中です。原文の説明を表示しています。
Converts transparent or solid-background single-color PNG files and SVG files containing one embedded or local PNG into verified path-only SVG output. Removes pure-color backgrounds automatically. Uses Potrace threshold and parameter scans with alpha error metrics to preserve detailed logos, stamps, engravings, and line art. Use when the user asks to convert images to SVG, vectorize PNG, convert bitmap to true SVG, remove embedded raster data from SVG, 图片转矢量, PNG 转 SVG, 真矢量, or 位图描摹.
日本語の概要は準備中です。原文の説明を表示しています。
Translate subtitle files (SRT/VTT) between languages. Auto-detect source language, batch translate with count validation, optional bilingual merge output. Use when user asks to "translate subtitles", "翻译字幕", "subtitle translation", or needs subtitles converted to another language.
日本語の概要は準備中です。原文の説明を表示しています。
Fetch any URL and convert to markdown using Chrome CDP, with automatic image downloading. Supports auto-capture and wait-for-user modes. Downloads article images to local directory and rewrites image references to relative paths. Use when user wants to save a webpage as markdown with images. Keywords: url to markdown, save webpage, download article, 网页转markdown
日本語の概要は準備中です。原文の説明を表示しています。
Burn subtitles into local video files. Supports SRT/VTT/ASS formats, auto-detect subtitles and language, bilingual subtitle merging and translation. Use when user needs to hardcode subtitles into video. Keywords: 字幕烧录、burn subtitles、本地视频、hardcode subtitles
日本語の概要は準備中です。原文の説明を表示しています。