GstPushSrcClass.create

Ask the subclass to create a buffer. The subclass decides which size this buffer should be. Other then that, refer to #GstBaseSrc<!-- -->.create() for more details. If this method is not implemented, @alloc followed by @fill will be called.

struct GstPushSrcClass
extern (C)
GstFlowReturn function(GstPushSrc* src, GstBuffer** buf) create;