Error when starting video recording from cameras already recording video #122
Description
Current behavior throws confusing error when attempting to start a recording on cameras already recording data.
Change E3VisionInterface.start_rec behavior to the following:
- check for recording state of all cameras before sending post request
- if any cameras are recording, check FORCE parameter
- If FORCE, stop recordings on all cameras then start new recording. Print according warning message
- if not FORCE, raise more meaningful exception with "You're currently recording something" error message.
Please submit this to the e3vision branch.