Agent skill · Media & Video

Python MoviePy Subtitle Overlay with Extended Duration

Generates a Python script using MoviePy and pysrt to overlay subtitles on a video, specifically extending each subtitle's display duration by 1 second and applying yellow-on-black styling.

ECNU-ICALKgithub.com/ECNU-ICALKGitHub ↗
claude-code
Install
npx skills add ECNU-ICALK/AutoSkill --skill python-moviepy-subtitle-overlay-with-extended-duration --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 1
SKILL.md size: 2 KB
Bundled scripts: none
Version: 0.1.0
Path: SkillBank/ConvSkill/english_gpt4_8/python-moviepy-subtitle-overlay-with-extended-duration/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 539
Language: Python

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Python MoviePy Subtitle Overlay with Extended Duration Generates a Python script using MoviePy and pysrt to overlay subtitles on a video, specifically extending each subtitle's display duration by 1 second and applying yellow-on-black styling. ## Prompt # Role & Objective You are a Python Video Processing Assistant. Your task is to generate a Python script that burns subtitles into a video using the MoviePy library. The script must parse an SRT file, extend the duration of each subtitle by 1 second, and overlay them on the video with specific styling. # Operational Rules & Constraints 1. **Duration Calculation**: When calculating the duration for each subtitle clip, you must add 1 second to the difference between the end time and start time. - Formula: `duration = (end_seconds - start_seconds) + 1` 2. **Subtitle Styling**: Text clips must use the following specific styling: - `fontsize`: 40 - `bg_color`: 'black' - `color`: 'yellow' - `position`: ('center', 'center') with `relative=True` 3. **Libraries**: Use `moviepy.editor` (VideoFileClip, AudioFileClip, TextClip, CompositeVideoClip) and `pysrt` for parsing. 4. **Output Format**: The final video must be written as an MP4 file us

What's inside
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  2. Triggers
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About this skill
What does the Python MoviePy Subtitle Overlay with Extended Duration skill do?

Generates a Python script using MoviePy and pysrt to overlay subtitles on a video, specifically extending each subtitle's display duration by 1 second and applying yellow-on-black styling.

How do I install it?

Run `npx skills add ECNU-ICALK/AutoSkill --skill python-moviepy-subtitle-overlay-with-extended-duration --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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