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How Classroom Capture Handles Input Interruptions
Last Updated: Dec 07, 2017 02:55PM EST

This article applies to:  Echo360 Admins

CCAP device support has been enhanced to dynamically handle changes to Input Media Devices anytime in the middle of Scheduled, or Ad hoc initiated captures as well as prior to the start of a Scheduled capture. When there is an interruption in a CCAP capture (due to input disconnection, resolution change, power loss, etc.), and the capture resumes, the capture will be split into multiple parts instead of failing outright. The Media Processor has been enhanced to recognize when this happens and is able to “stitch” the separate parts together, to create a single capture.

For the best results, however, we recommend that inputs are to be plugged into/connected to the PC in question prior to the start of a capture and an Administrator should review any new source configurations before the start of scheduled capture sessions.

Accidental device removal

If a configured device becomes disconnected from the classroom PC (either due to physical disconnection or signal loss), the application will automatically resume the capture using the remaining available configured devices as well as any alternative or fallback devices detected in the disconnected inputs place. The system cannot distinguish between an accidental device removal and an intentional one and will attempt to auto-detect any changes, reconfiguring input selections and displaying a notification accordingly.

For example, if you have a USB video camera configured to capture video and the device becomes disconnected during an ADV capture, the system automatically detects the change and reconfigures the Video input selection to use an alternative webcam for video input (if available) and then resumes capturing using the pre-configured Audio and Display inputs and an alternative Video input (if available).

Edit the completed capture to remove the notification: If a Display input was being captured at the time of interruption, the instructor or an administrator can clean up the final capture by editing the video and cutting out the section that shows the notification popup.

What happens if my inputs change during a capture?

If a capture is configured to record an input, the input becomes disconnected and there is an alternative source available, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the configured device is not being detected and the capture is now continuing using an alternative input source.
  • The capture will resume after the notification with any remaining configured inputs as well as the alternative input.

If, however, a capture is configured to record an input, the input becomes disconnected and there is no alternative source available, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the device is not being detected.
  • The capture will resume after the notification with any remaining configured inputs.
  • For missing audio, video or display inputs, the capture will still occur but those portions of the capture will be missing.

Finally, if a configured device that was disconnected becomes available again, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the device is now being detected again and that it will begin being recorded.
  • The capture will resume after the notification with any configured inputs.

What happens if my inputs change prior to the start of a Scheduled capture?

If a capture is configured to record an input, the input is not connected at the start of the capture and there is an alternative source available, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the configured device is not being detected and the capture is now continuing using an alternative input source.
  • The capture will resume after the notification with any remaining configured inputs as well as the alternative input.

If a capture is configured to record an input, the input is not connected at the start of the capture and there is no alternative source available, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the device is not being detected.
  • The capture will resume after the notification with any remaining configured inputs.
  • For missing audio, video or display inputs, the capture will still occur but those portions of the capture will be missing.

Finally, if a configured device that was missing at the start of the capture becomes available, the system will do the following:

  • A balloon notification will appear on the classroom PC, informing the instructor that the device is now being detected again and that it will begin being recorded.
  • The capture will resume after the notification with any configured inputs.

Other Capture Interruptions

Besides the scenarios cited above, a few other types or reasons for capture input interruption are described below, along with how CCAP deals with those situations.

Power loss and Shutdown

If the classroom PC loses power or is shut down and then is turned back on during the configured time of the capture the capture restarts once the instructor logs in and continues capturing with any configured inputs.

Log out and User Switching

If the instructor logs out of the classroom PC and then logs back in during the configured time of the capture, either using the same or a different user account, the capture restarts and continues capturing with any configured inputs.

Restart

If the classroom PC is restarted during the configured time of the capture the capture restarts once the instructor logs in and continues capturing with any configured inputs.

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