void avfilter_default_start_frame(AVFilterLink *link, AVFilterPicRef *picref);
void avfilter_default_end_frame(AVFilterLink *link);
int avfilter_default_config_output_link(AVFilterLink *link);
+int avfilter_default_config_input_link (AVFilterLink *link);
int *avfilter_default_query_output_formats(AVFilterLink *link);
AVFilterPicRef *avfilter_default_get_video_buffer(AVFilterLink *link,
int perms);
int avfilter_link(AVFilterContext *src, unsigned srcpad,
AVFilterContext *dst, unsigned dstpad);
+/** Configure the colorspace, dimensions, etc of a link */
+int avfilter_config_link(AVFilterLink *link);
+
AVFilterPicRef *avfilter_get_video_buffer(AVFilterLink *link, int perms);
void avfilter_request_frame(AVFilterLink *link);
void avfilter_start_frame(AVFilterLink *link, AVFilterPicRef *picref);