mlt_filter.h

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#ifndef MLT_FILTER_H
#define MLT_FILTER_H
 
#include "mlt_service.h"
 
struct mlt_filter_s
{
    struct mlt_service_s parent;
 
    void (*close)(mlt_filter);
 
    mlt_frame (*process)(mlt_filter, mlt_frame);
 
    void *child;
};
 
#define MLT_FILTER_SERVICE(filter) (&(filter)->parent)
#define MLT_FILTER_PROPERTIES(filter) MLT_SERVICE_PROPERTIES(MLT_FILTER_SERVICE(filter))
 
extern int mlt_filter_init(mlt_filter self, void *child);
extern mlt_filter mlt_filter_new();
extern mlt_service mlt_filter_service(mlt_filter self);
extern mlt_properties mlt_filter_properties(mlt_filter self);
extern mlt_frame mlt_filter_process(mlt_filter self, mlt_frame that);
extern int mlt_filter_connect(mlt_filter self, mlt_service producer, int index);
extern void mlt_filter_set_in_and_out(mlt_filter self, mlt_position in, mlt_position out);
extern int mlt_filter_get_track(mlt_filter self);
extern mlt_position mlt_filter_get_in(mlt_filter self);
extern mlt_position mlt_filter_get_out(mlt_filter self);
extern mlt_position mlt_filter_get_length(mlt_filter self);
extern mlt_position mlt_filter_get_length2(mlt_filter self, mlt_frame frame);
extern mlt_position mlt_filter_get_position(mlt_filter self, mlt_frame frame);
extern double mlt_filter_get_progress(mlt_filter self, mlt_frame frame);
extern void mlt_filter_close(mlt_filter);
 
#endif