🎬 AetherCEP: Adobe CEP Media Automation

A lightweight Adobe CEP extension panel designed to automate media workflows, handle timecode tracking, download web assets, and simplify asset management within your creative suite.

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AetherCEP

AetherCEP is a Windows extension for Adobe Premiere Pro that downloads permitted YouTube media, creates timestamped clips, and sends finished files directly to a Premiere project or timeline.

Important

Download only media you own or are authorized to use. You are responsible for complying with YouTube's terms and applicable copyright law.

Highlights

• Download video with audio, audio-only MP3, or silent video.
• Choose from compatible 360p through 2160p presets or refresh the source's exact yt-dlp formats.
• Cut a section using SS, MM:SS, or HH:MM:SS timestamps.
• Use browser sessions or a Netscape-format cookies.txt for media your account may access.
• Follow live progress, cancel work, inspect command output, and browse recent downloads.
• Import a file into the project bin or append it to video track 1 of the active sequence.
• Use bundled yt-dlp, Deno, FFmpeg, and ffprobe in release packages.

Requirements

• Windows 10 or 11
• Adobe Premiere Pro 2019 (13.0) or newer
• Internet access
• Permission to download and use the requested media

Install

For most users:

1. Download the latest AetherCEP.zip from the repository's Releases page. Do not use GitHub's automatically generated "Source code" archives; they do not contain the runtime tools.
2. Extract the complete ZIP to a writable folder.
3. Double-click Setup.bat (or INSTALL.bat).
4. Select Install, wait for completion, and restart Premiere Pro.
5. In Premiere, open Window > Extensions > AetherCEP.

The installer enables CEP PlayerDebugMode for CSXS 8–15 and copies the extension to:

%APPDATA%\Adobe\CEP\extensions\AetherCEP

See the user guide for timestamp clips, sign-in options, importing, updates, and uninstall instructions. If the panel does not appear or a download fails, use the troubleshooting guide.

Quick use

1. Paste a supported YouTube video, Short, or livestream URL.
2. Choose the output type and maximum quality.
3. Optionally enable a timestamp range and enter a start, an end, or both.
4. Choose a download folder and select Download media.
5. Import the result to the project bin or active timeline.

Public videos normally need no sign-in. For media your account can access, choose a supported browser or a cookies.txt file. Treat exported cookies as credentials: never commit, upload, or share them.

Development

The panel uses HTML, CSS, ES5-compatible JavaScript, Adobe's CEP bridge, and Premiere ExtendScript. The only automated test currently needs Node.js 18 or newer and has no package dependencies.

npm test

Start with CONTRIBUTING.md, then see the development guide and architecture overview.

Repository layout

CSXS/          CEP extension manifest
css/           panel styles
js/            panel logic and yt-dlp/FFmpeg integration
jsx/           Premiere Pro host-side ExtendScript
tests/         dependency-free Node tests
docs/          user, development, architecture, and support guides
.github/       CI workflow and contribution templates
Setup.ps1      graphical Windows installer

Support and security

• Search existing issues before opening a bug report.
• Include Premiere/Windows versions, reproduction steps, and sanitized technical output.
• Do not include cookie files, session data, personal paths, or private media URLs.
• Report vulnerabilities according to SECURITY.md, not in a public issue.

Update checks

AetherCEP checks the latest stable GitHub Release whenever the panel starts in Premiere. The footer also provides a manual Check for updates action. When a newer version is available, the panel displays its version and provides a button that opens the GitHub Releases page.

The panel does not download, install, or execute extension updates. Download the latest full release package from GitHub and run Setup.bat to update the installed extension.

Releases and third-party software

Release archives may include yt-dlp, Deno, FFmpeg, ffprobe, and Adobe's CSInterface bridge. Their licenses are independent of this project's licensing. See THIRD_PARTY_NOTICES.md.

The large release ZIP and executable files are intentionally excluded from normal Git history. Maintainers assemble them as described in the development guide.

License

No project license has been declared yet. Until the maintainer adds one, copyright law reserves all rights to the project's original code and documentation. Third-party components retain their own licenses.