OpticalMarkerTracker interferes with sending TelemedVideo

[markasselin]

Using an OpticalMarkerTracking device in the same config file as TelemedVideo causes only a single frame to be sent via OpenIGTLinkServer. Commenting out the OpticalMarkerTracking device in this config will resume normal data sending from the Telemed. Note: Sending the MmfVideo at the same time as OpticalMarkerTracking tracking data works as expected.

PlusServer_SampleConfig.xml.txt

[markasselin]

Note that it is not the OpticalMarkerTracker device which is causing the interference, it is actually the MmfVideoSource device. A workaround is to run 2 PLUS servers, the first with the Telemed and the other server with everything else. Another possible (untested) workaround is to use OpenCV video.

[adamrankin]

Just fyi opencv video wraps directshow and MMF, but directshow is becoming deprecated and only MMF will remain.

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On Mon, Jun 18, 2018, 12:15 Mark Asselin, ***@***.***> wrote: Note that it is not the OpticalMarkerTracker device which is causing the interference, it is actually the MmfVideoSource device. A workaround is to run 2 PLUS servers, the first with the Telemed and the other server with everything else. Another possible (untested) workaround is to use OpenCV video. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#365 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ADD8nsZznlBlFQ9QifVg4AI_PChFGrZ0ks5t99IHgaJpZM4UZUBr> .

[lassoan]

Have you tried to adjust CaptureDeviceId attribute of MMF video source? Maybe we connect to Telemed streams instead to the the camera.

There may be also issues with how they devices are initialized (as I remember, there are some application-global initialization steps).

There is also video for windows interface, for generic frame grabbing (deprecated 20 years ago, but still working).

[adamrankin]

Could someone test the OpenCV(MMF) video with the telemed?

[markasselin]

@Sunderlandkyl has this issue been resolved yet?

[Sunderlandkyl]

No, I haven't looked into it yet.