Chad Wallace Hart

webrtcHacks - How to Figure Out WebRTC Camera Resolutions

I did some experiments with WebRTC's getUserMedia() constraints? This lead me down a rat hole but I had some interesting results.

Highlights include:

  • Non-obvious Findings
  • Mandatory constraints are really suggestions.
  • Kill the stream before applying new constraints.
  • Use https for a better user experience.
  • Don’t bother changing constraints in Firefox today.
  • Auto-identifying Camera Resolutions

See the webrtcHacks post.

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About Chad W Hart
Cambridge, MA USA Website
Chad is a communications market analyst and product consultant at, a product management, marketing, and strategy advisory. See more at his bio page -