https://github.com/guest271314/screenshot

Screenshots
https://github.com/guest271314/screenshot

decoder javascript screen-capture screenshot vp8 webm webrtc

Last synced: 3 months ago
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Screenshots

• Host: GitHub
• URL: https://github.com/guest271314/screenshot
• Owner: guest271314
• Created: 2020-11-02T04:21:23.000Z (over 4 years ago)
• Default Branch: main
• Last Pushed: 2023-11-23T17:15:23.000Z (about 1 year ago)
• Last Synced: 2023-11-23T18:26:18.230Z (about 1 year ago)
• Topics: decoder, javascript, screen-capture, screenshot, vp8, webm, webrtc
• Language: JavaScript
• Homepage:
• Size: 183 KB
• Stars: 3
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# screenshot

`getDisplayMedia()` => `MediaRecorder()` => [VP8 - WebM JavaScript Decoder](https://github.com/dominikhlbg/vp8-webm-javascript-decoder) => `ImageData`

Usage


```

(async _ => {

  try {

    const screenshots = await screenshot();

    for (const screenshot of screenshots) {

      // do stuff with ImageData

      console.log(screenshot);

      const canvas = document.createElement('canvas');

      const ctx = canvas.getContext('2d');

      canvas.width = screenshot.width;

      canvas.height = screenshot.height;

      ctx.putImageData(screenshot, 0, 0);

      document.body.appendChild(canvas);

    }  

  } catch(e) {

      throw e;

  }

})()

.catch(e => {

  console.error(e);

  console.trace();

});

```

Tested at Firefox 82, Nightly 84, Chromium 88.

TODO: Programmatically hide screen capture notification.

References


- [Screenshot (still image) capability #107](https://github.com/w3c/mediacapture-screen-share/issues/107)

- [capture screenshot of DOM #145](https://github.com/w3c/mediacapture-screen-share/issues/145)