Webcodecs String Finder

Finds valid WebCodecs strings for video and audio by researching codec support tables and detailed specifications on webcodecsfundamentals.org.

This skill helps you find the most supported and appropriate codec strings for WebCodecs, whether for video or audio.

Workflow

1. Requirements Gathering

Understand the user's requirements:

• Type: Video or Audio?
• Platform: Chrome, Edge, Android, iOS, etc.?
• Resolution: 1080p, 4k, etc. (for video)?
• Codec Name: h264 (avc1), h265 (hev1/hvc1), vp9, av1, opus, aac, etc.?

2. Search for Supported Codecs

Use web_fetch to access the codec support table:

• URL: https://webcodecsfundamentals.org/datasets/codec-support-table/
• Identify the most supported codecs based on the requirement (platform and codec type).

3. Confirm Codec Details

For the top candidates found in the previous step, confirm their details:

• Use web_fetch to visit the detail page: https://webcodecsfundamentals.org/codecs/<CODEC-STRING>.html
• Replace <CODEC-STRING> with the identified candidate (e.g., avc1.42e01e).
• Verify that it meets the specific requirements (e.g., profile, level, platform support).

4. Recommendation

Return the 2-3 most fitted codec strings.

• Provide a brief explanation of why each was chosen.
• Include the browser/platform support if relevant.

Tips

• Common video codec strings: avc1.42e01e (H.264 Baseline), avc1.4d401f (H.264 Main), hev1.1.6.l93.b0 (H.265), vp09.00.10.08 (VP9).
• Common audio codec strings: opus, mp4a.40.2 (AAC-LC).
• When in doubt, prefer widely supported codecs like H.264 and Opus for maximum compatibility.