static void
setup_transitions(struct state_machine *sm)
{
int i;
for (i = 0; i < sm->nstates; ++i)
setup_transition(sm, i);
}
/** Get the image.
*/
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
int error = 0;
mlt_filter filter = mlt_frame_pop_service( frame );
mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
mlt_producer producer = mlt_properties_get_data( properties, "_producer", NULL );
mlt_transition transition = mlt_properties_get_data( properties, "_transition", NULL );
mlt_frame text_frame = NULL;
mlt_position position = 0;
// Configure this filter
mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
setup_producer( filter, producer, frame );
setup_transition( filter, transition );
mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
// Make sure the producer is in the correct position
position = mlt_filter_get_position( filter, frame );
mlt_producer_seek( producer, position );
// Get the b frame and process with transition if successful
if ( mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), &text_frame, 0 ) == 0 )
{
// Get the a and b frame properties
mlt_properties a_props = MLT_FRAME_PROPERTIES( frame );
mlt_properties b_props = MLT_FRAME_PROPERTIES( text_frame );
// Set the frame and text_frame to be in the same position and have same consumer requirements
mlt_frame_set_position( text_frame, position );
mlt_frame_set_position( frame, position );
mlt_properties_set_int( b_props, "consumer_deinterlace", mlt_properties_get_int( a_props, "consumer_deinterlace" ) );
// Apply all filters that are attached to this filter to the b frame
mlt_service_apply_filters( MLT_FILTER_SERVICE( filter ), text_frame, 0 );
// Process the frame
mlt_transition_process( transition, frame, text_frame );
// Get the image
*format = mlt_image_yuv422;
error = mlt_frame_get_image( frame, image, format, width, height, 1 );
// Close the b frame
mlt_frame_close( text_frame );
}
return error;
}
