#GstGLSyncMeta provides the ability to synchronize the OpenGL command stream with the CPU or with other OpenGL contexts.
the #GstGLContext used to allocate the meta
a custom data pointer for the implementation
the parent #GstMeta
Set a sync point to possibly wait on at a later time.
a #GstGLContext
#GstGLSyncMeta provides the ability to synchronize the OpenGL command stream with the CPU or with other OpenGL contexts.