mlt: mlt_transition.h Source File

mlt 0.7.6
00001 
00024 #ifndef _MLT_TRANSITION_H_
00025 #define _MLT_TRANSITION_H_
00026 
00027 #include "mlt_service.h"
00028 
00041 struct mlt_transition_s
00042 {
00044     struct mlt_service_s parent;
00045 
00047     void ( *close )( mlt_transition );
00048 
00050     mlt_frame ( *process )( mlt_transition, mlt_frame, mlt_frame );
00051 
00053     void *child;
00054 
00056     mlt_service producer;
00057 
00059     mlt_frame *frames;
00060     int held;
00061 };
00062 
00063 #define MLT_TRANSITION_SERVICE( transition )        ( &( transition )->parent )
00064 #define MLT_TRANSITION_PROPERTIES( transition )     MLT_SERVICE_PROPERTIES( MLT_TRANSITION_SERVICE( transition ) )
00065 
00066 extern int mlt_transition_init( mlt_transition self, void *child );
00067 extern mlt_transition mlt_transition_new( );
00068 extern mlt_service mlt_transition_service( mlt_transition self );
00069 extern mlt_properties mlt_transition_properties( mlt_transition self );
00070 extern int mlt_transition_connect( mlt_transition self, mlt_service producer, int a_track, int b_track );
00071 extern void mlt_transition_set_in_and_out( mlt_transition self, mlt_position in, mlt_position out );
00072 extern int mlt_transition_get_a_track( mlt_transition self );
00073 extern int mlt_transition_get_b_track( mlt_transition self );
00074 extern mlt_position mlt_transition_get_in( mlt_transition self );
00075 extern mlt_position mlt_transition_get_out( mlt_transition self );
00076 extern mlt_position mlt_transition_get_length( mlt_transition self );
00077 extern mlt_position mlt_transition_get_position( mlt_transition self, mlt_frame frame );
00078 extern double mlt_transition_get_progress( mlt_transition self, mlt_frame frame );
00079 extern double mlt_transition_get_progress_delta( mlt_transition self, mlt_frame frame );
00080 extern mlt_frame mlt_transition_process( mlt_transition self, mlt_frame a_frame, mlt_frame b_frame );
00081 extern void mlt_transition_close( mlt_transition self );
00082 
00083 #endif