mlt_link.h

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#ifndef MLT_LINK_H
#define MLT_LINK_H
 
#include "mlt_export.h"
#include "mlt_producer.h"
 
struct mlt_link_s
{
    struct mlt_producer_s parent;
 
    int (*get_frame)(mlt_link, mlt_frame_ptr, int);
 
    void (*configure)(mlt_link, mlt_profile);
 
    void (*close)(mlt_link);
 
    mlt_producer next;
    void *child;
};
 
#define MLT_LINK_PRODUCER(link) (&(link)->parent)
#define MLT_LINK_SERVICE(link) MLT_PRODUCER_SERVICE(MLT_LINK_PRODUCER(link))
#define MLT_LINK_PROPERTIES(link) MLT_SERVICE_PROPERTIES(MLT_LINK_SERVICE(link))
 
MLT_EXPORT mlt_link mlt_link_init();
MLT_EXPORT int mlt_link_connect_next(mlt_link self, mlt_producer next, mlt_profile chain_profile);
MLT_EXPORT void mlt_link_close(mlt_link self);
 
// Link filter wrapper functions
MLT_EXPORT mlt_link mlt_link_filter_init(mlt_profile profile,
                                         mlt_service_type type,
                                         const char *id,
                                         char *arg);
MLT_EXPORT mlt_properties mlt_link_filter_metadata(mlt_service_type type,
                                                   const char *id,
                                                   void *data);
 
#endif