#GstGLBaseSrc handles the nitty gritty details of retrieving an OpenGL context. It also provided some wrappers around #GstBaseSrc's start() and stop() virtual methods that ensure an OpenGL context is available and current in the calling thread.
the currently configured #GstGLContext
the currently configured #GstGLDisplay
the currently configured output #GstCaps
the currently configured output #GstVideoInfo
the total running time
#GstGLBaseSrc handles the nitty gritty details of retrieving an OpenGL context. It also provided some wrappers around #GstBaseSrc's start() and stop() virtual methods that ensure an OpenGL context is available and current in the calling thread.