extern const char *ff_opencl_source_neighbor;
extern const char *ff_opencl_source_nlmeans;
extern const char *ff_opencl_source_overlay;
+extern const char *ff_opencl_source_pad;
extern const char *ff_opencl_source_tonemap;
extern const char *ff_opencl_source_transpose;
extern const char *ff_opencl_source_unsharp;