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econsysqtcam / qtcam

QtCAM is a free, Open Source Linux Webcamera Software with more than 10 image control settings, extension settings and Color space switching.
http://www.e-consystems.com/opensource-linux-webcam-software-application.asp
GNU General Public License v3.0
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When in trigger mode, the video feed is not working? #18

Open neherh opened 7 years ago

neherh commented 7 years ago

I was wondering why the updated video feed does not update when I am in trigger mode? Is there a specific design consideration that I just don't understand? I think that feature would improve your application.

econsysqtcam commented 7 years ago

In master mode, frames will be coming from camera continuously. In this case we can see continuous streaming in the application. In trigger mode, the frames will be available only when getting pulses from camera trigger key. In this case only still capture is possible.

neherh commented 7 years ago

Thank you. Is there an update version of QTCam where we can see both the live video feed and have the camera trigger externally for images? Or is that just not physically possible due to hardware considerations? I have one other question. In the see3CAMCU50 and the see3CAMCU51 both of them are advertised as having trigger modes, however only the monochrome camera has a trigger option in the gui. Is there a reason why the RGB camera has no trigger mode to enable in the gui?

econsysqtcam commented 7 years ago

please see my reply inline

Is there an update version of QTCam where we can see both the live video feed and have the camera trigger externally for images? Or is that just not physically possible due to hardware considerations?

We can keep camera in master mode to see the streaming continuously and capture still using camera trigger key at the same time.

In the see3CAMCU50 and the see3CAMCU51 both of them are advertised as having trigger modes, however only the monochrome camera has a trigger option in the gui. Is there a reason why the RGB camera has no trigger mode to enable in the gui?

Please refer product documentation

neherh commented 7 years ago

So I have looked into the documentation and I could not find any external trigger register that I could set in the see3CAMCU50. The issue is that when I externally trigger the CU50, the frame rates changes in the GUI for the same trigger pulse. This did not happen in the CU51. Is there any problem with the API or driver for the CU50.

econsysqtcam commented 7 years ago

CU50 camera doesn't have an inherent trigger mode (triggering the sensor). Whatever trigger you give is only handled externally and corresponding image is saved. Hence we cannot expect it to behave like CU51 where trigger goes to sensor directly.

neherh commented 7 years ago

Ok. I understand now. Some econ cameras have a built in trigger mode built into the sensor, whereas, the 'trigger mode' on the GUI is simply a 'press and take picture' trigger response not associated with the hardware. One more question, does the See3CAM_CU130 camera have an inherent trigger mode (triggering the sensor, aka a sensor trigger pin)?

econsysqtcam commented 7 years ago

See3CAM_CU130 doesn't have inherent trigger mode by default. But with some customization we can achieve synchronization with trigger. please contact sales@e-consystems.com for more information.