#GstGLFramebuffer object used for transformations (only for subclass usage)
the video info for input buffers
The texture target of the input buffers (usually 2D)
the output #GstCaps
the video info for output buffers
The texture target of the output buffers (usually 2D)
#GstGLFilter helps to implement simple OpenGL filter elements taking a single input and producing a single output with a #GstGLFramebuffer