/**
* Filter initialization function. Args contains the user-supplied
* parameters. FIXME: maybe an AVOption-based system would be better?
+ * opaque is data provided by the code requesting creation of the filter,
+ * and is used to pass data to the filter.
*/
- int (*init)(AVFilterContext *ctx, const char *args);
+ int (*init)(AVFilterContext *ctx, const char *args, const void *opaque);
void (*uninit)(AVFilterContext *ctx);
const AVFilterPad *inputs; /// NULL terminated list of inputs. NULL if none
AVFilterContext *avfilter_create(AVFilter *filter, char *inst_name);
AVFilterContext *avfilter_create_by_name(char *name, char *inst_name);
-int avfilter_init_filter(AVFilterContext *filter, const char *args);
+int avfilter_init_filter(AVFilterContext *filter, const char *args, void *opaque);
void avfilter_destroy(AVFilterContext *filter);
int *avfilter_make_format_list(int len, ...);