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using QT graphic with live video

Guru 20755 points

Hello,

I would like to know if anyonw tried to use QT application with video ?

I start dvrrdk application which output video on display (DVO2 video0), It is done using dvrrdk 4.1.0.2 MCFW usecase. 

/dev/video2 -- =>video1 -- =>hdcompmux -- =>dvo2_venc(display1)->LCD Pannel or external dispaly device.

I would like to know if it is possible to control display1 reoslution/offset on screen with the QT application after starting the usecase , or if MCFW and vpss driver can interfer with each other ?

  If it is possible to control /dev/video2 with QT , how this should be done ?

Thank you,

Ran