GstGLFilterClass.filter

perform operations on the input and output buffers. In general, you should avoid using this method if at all possible. One valid use-case for using this is keeping previous buffers for future calculations. Note: If @filter exists, then @filter_texture is not run

struct GstGLFilterClass
extern (C)
bool function(GstGLFilter* filter, GstBuffer* inbuf, GstBuffer* outbuf) filter;