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ffmpeg.wasm version 0.12.6 is now supported in the dev branch. (Manifest V3 only).
A simple example of using ffmpeg.wasm with Chrome and Firefox extensions.
Chrome Extension Manifest V3 is supported.
Included in the root of the downloaded folder are manifest-v2.json and manifest-v3.json.
Depending on the Manifest Version you want to use, rename it to manifest.json.
Delete files that are no longer needed.
- Open the extensions settings page (for Chrome, go to chrome://extensions)
- Turn on 'Developer mode' in the top right corner.
- Click on 'Load unpacked'.
- Choose this repository's directory.
- Open the 'This Firefox' page (about:debugging#/runtime/this-firefox)
- Click on 'Load Temporary Add-on…'
- Select the
manifest.json
| Manifest Version | Chrome | Firefox |
|---|---|---|
| v2 | ✅ | ✅ |
| v3 | ✅ | ❌ |
Click on the extension icon to open the popup page, then select 'Open Options Page'.
Click on 'convert WebM to MP4' or 'convert Wav to MP3' to run the demos for WebM->MP4 and Wav->MP3 conversions respectively.
You can also specify any file and command to perform the conversion.
MIT (except for sample video and audio)
- ffmpeg.wasm-core: https://github.com/ffmpegwasm/ffmpeg.wasm-core
- ffmpeg.wasm: https://github.com/ffmpegwasm/ffmpeg.wasm
- Content Security Policy: https://developer.chrome.com/docs/extensions/mv3/manifest/content_security_policy/
- Sample video source: https://youtu.be/D6DVTLvOupE