mlt_events.h

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#ifndef MLT_EVENTS_H
#define MLT_EVENTS_H
 
#include "mlt_export.h"
#include "mlt_types.h"
 
typedef struct
{
    union {
        int i;
        void *p;
    } u;
} mlt_event_data;
 
typedef struct
{
    void **thread; 
    int *priority; 
    mlt_thread_function_t function; 
    void *data;                     
} mlt_event_data_thread;
 
typedef void (*mlt_listener)(mlt_properties, void *, mlt_event_data);
 
MLT_EXPORT void mlt_events_init(mlt_properties self);
MLT_EXPORT int mlt_events_register(mlt_properties self, const char *id);
MLT_EXPORT int mlt_events_fire(mlt_properties self, const char *id, mlt_event_data);
MLT_EXPORT mlt_event mlt_events_listen(mlt_properties self,
                                       void *listener_data,
                                       const char *id,
                                       mlt_listener listener);
MLT_EXPORT void mlt_events_block(mlt_properties self, void *listener_data);
MLT_EXPORT void mlt_events_unblock(mlt_properties self, void *listener_data);
MLT_EXPORT void mlt_events_disconnect(mlt_properties self, void *listener_data);
 
MLT_EXPORT mlt_event mlt_events_setup_wait_for(mlt_properties self, const char *id);
MLT_EXPORT void mlt_events_wait_for(mlt_properties self, mlt_event event);
MLT_EXPORT void mlt_events_close_wait_for(mlt_properties self, mlt_event event);
 
MLT_EXPORT void mlt_event_inc_ref(mlt_event self);
MLT_EXPORT void mlt_event_block(mlt_event self);
MLT_EXPORT void mlt_event_unblock(mlt_event self);
MLT_EXPORT void mlt_event_close(mlt_event self);
 
MLT_EXPORT mlt_event_data mlt_event_data_none();
MLT_EXPORT mlt_event_data mlt_event_data_from_int(int value);
MLT_EXPORT int mlt_event_data_to_int(mlt_event_data);
MLT_EXPORT mlt_event_data mlt_event_data_from_string(const char *value);
MLT_EXPORT const char *mlt_event_data_to_string(mlt_event_data);
MLT_EXPORT mlt_event_data mlt_event_data_from_frame(mlt_frame);
MLT_EXPORT mlt_frame mlt_event_data_to_frame(mlt_event_data);
MLT_EXPORT mlt_event_data mlt_event_data_from_object(void *);
MLT_EXPORT void *mlt_event_data_to_object(mlt_event_data);
 
#endif