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
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