Cams and Broadcasting

Browser requirements

JumpInChat uses a technology called WebRTC for video streams, which is a way to transfer data to and from a browser. WebRTC is supported on the latest versions most major browsers except Internet Explorer. In order to view and broadcast you will need either Chrome (or other Blink-based browsers) or Firefox. It should also work on later versions of Android (e.g. Chrome Mobile and Samsung Internet), as well as versions of iOS Safari 12.2 and later.

Browser permissions

In order to broadcast, your browser must have permission to access your audio and video media sources. Your browser should ask for permissions for your webcam and microphone when you select them, but you can also define them yourself from the site settings dropdown in your browser.

chrome cam permissions
Google Chrome
firefox cam permissions
Mozilla Firefox

Screen sharing

Screen sharing is supported for desktop browsers only currently (Chrome and Firefox). Firefox supports it out-of-the-box. Chrome, however, requires an extension due to increased restrictions on permissions. You can get the Chrome extension here. It is provided by Meetecho who develop the media server JumpInChat uses for managing it's streams.


Green cams

Disable hardware acceleration

Follow the instructions below for Chrome:

  1. Go to More
  2. Select Settings.
  3. At the bottom of the page, click or tap Advanced.
  4. Under 'System', enable the toggle next to 'Use hardware acceleration when available'.

If you're using a browser other than Chrome, you can learn how to disable hardware acceleration in that browser's help content.

Update your graphics driver

Updating your computer’s graphics driver may correct many of the problems listed above.

For PC users: visit the website of your computer manufacturer to download the latest driver.

Video source is unavailable

"Constraints could not be satisfied" error

Errors of this type typically mean the video source you're attempting to use doesn't support the resolution chosen to broadcast with. For example, if the chosen resolution is 480p (640x480) but the source only outputs 1920x1080, the browser will not be able to access it.

In most cases, this will happen when you attempt to use a virtual media device rather than an actual webcam. If this is the case, try and make sure the virtual webcam outputs at a usable resolution.

For more information about what resolutions your devices can output, check out the media internals (chrome://media-internals) page, if you're on Chrome, and open the "Video Capture" tab. This will show a table of devices and formats (resolutions) available for use.

"Failed to allocate videosource" or "Could not start video source" error

This error occurs when a video source is already in use by another process. Essentially, the operating system has reserved the device and prevents anything else using it.

The only way to fix this error is to stop the other process from using the device. If this fails to work, you must either close the suspect program, or restart your computer if all else fails.

"Permission denied" error

You have previously denied the browser permission to access the media device(s) and must manually allow it.

See the section on browser permissions to see how to allow access.