26 #define REGISTER_FILTER(X, x, y) \
28 extern AVFilter ff_##y##_##x; \
29 if (CONFIG_##X##_FILTER) \
30 avfilter_register(&ff_##y##_##x); \
33 #define REGISTER_FILTER_UNCONDITIONAL(x) \
35 extern AVFilter ff_##x; \
36 avfilter_register(&ff_##x); \
41 static int initialized;