I want to implement a qt program including a window to play video using gstreamer. As I know the UI area above the video windows should be transparent.
Timesys theater system is a sample to do this. fb0 is qt program and fb2 is gstreamer video(mfw_v4lsink). But it only support global alpha and color key in fb0. I think I need to to pixel alpha which can then be supported by qt.
How can implement this function, should I shoud mfw_isink or I can implement with mfw_v4lsink.