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Video Recording about widget  renderd by  mfw_v4lsink

Question asked by 李 侃 on Mar 4, 2015
Latest reply on Mar 25, 2015 by Joan Xie

Hi All,


     I have created a fsl-image-gui app with qt4 which overlay widget on camera captured image renderd by gst,used tvsrc and mfw_v4lsink.

     The app runs well, but when I want to record screen with ffmpeg into xxx.avi, there's only the image-gui.I can't record creen with both gui and video.

     As I know the area above the video windows should be transparent, fb0 is qt program and fb1 is mfw_v4lsink.


      Does anyone know about this? Thanks a lot.


      Device : iMx6q customer board

      Display: 8bit LVDS 1024x768

      Firmware: Yocto Linux

      Kernel:  3.0.35-4.1.0+yocto

      arm-gcc: 4.6.2

      oft changes: qt-every-where-4.8.6, gst 0.10.36(with gst fsl plugin 3.0.8 installed)

      app: Qt widget with camera captured image renderd by gst, used tvsrc(v4l2 driver for ADV7180, PAL 720x576) , pipeline , mfw_v4lsink