Add an option to not consider missing frames as error if ultrasound system is frozen

[Sunderlandkyl]

On Ultrasonix systems the operator may freeze the acquisition on the ultrasound and then Plus does not receive any new images. This may be an error in some cases (when the operator is not expected to freeze the images at any time) or a normal scenario. Error should only be logged if freezing is unexpected. See details at: https://www.assembla.com/spaces/plus/messages/5400753

Possible fix: Add an option for vtkSonixVideoSource (ReportFreezeDuringRecordingAsError, "TRUE" by default) to report/not report errors if freeze is activated during recording. Also, add an option for vtkPlusOpenIGTLinkServer (ReportMissingInputAsError, "TRUE" by default) to report/not report errors if input is not received. To allow freeze: both reporting would need to be set to FALSE and tracking data should be probably sent through a different channel (one channel would contain only the tracked image data, the other channel would contain all other tracked tools)

Migrated from https://app.assembla.com/spaces/plus/tickets/1048/details

[Sunderlandkyl]

2016-12-16 11:48
Adam Rankin
It would be ideal if this system was implemented in the usdevice base class, so that any US device could implement the necessary IsFrozen() query.