// Counstruct key
sprintf( key, "%s.", name );
+ // Just in case, let's assume that the filter here has a composite
+ mlt_properties_set( mlt_filter_properties( filter ), "composite.start", "0%,0%:100%x100%" );
+ mlt_properties_set( mlt_filter_properties( filter ), "composite.fill", "true" );
+
// Pass all the key properties on the filter down
mlt_properties_pass( mlt_filter_properties( filter ), properties, key );
// Look for the first filter
mlt_filter filter = mlt_properties_get_data( properties, "_filter_0", NULL );
+ // Get the unique id of the filter (used to reacquire the producer position)
+ char *name = mlt_properties_get( properties, "_unique_id" );
+
+ // Get the original producer position
+ mlt_position position = mlt_properties_get_position( mlt_frame_properties( frame ), name );
+
// Create a composite if we don't have one
if ( composite == NULL )
{
// Only continue if we have both filter and composite
if ( composite != NULL && filter != NULL )
{
+ // Get the resource of this filter (could be a shape [rectangle/circle] or an alpha provider of choice
+ char *resource = mlt_properties_get( properties, "resource" );
+
// String to hold the filter to query on
char id[ 256 ];
int i = 0;
// We will get the 'b frame' from the composite
- mlt_frame b_frame = composite_copy_region( composite, frame );
+ mlt_frame b_frame = composite_copy_region( composite, frame, position );
// Make sure the filter is in the correct position
while ( filter != NULL )
filter = mlt_properties_get_data( properties, id, NULL );
}
+ // Hmm - this is probably going to go wrong....
+ mlt_frame_set_position( frame, position );
+
// Get the b frame and process with composite if successful
mlt_transition_process( composite, frame, b_frame );
- // See if we have a shape producer
- // Copy the alpha mask from the shape frame to the b_frame
- char *resource = mlt_properties_get( properties, "resource" );
-
+ // If we have a shape producer copy the alpha mask from the shape frame to the b_frame
if ( strcmp( resource, "rectangle" ) != 0 )
{
- if ( strcmp( resource, "circle" ) == 0 )
- {
- resource = strdup( "pixbuf" );
- mlt_properties_set( properties, "producer.resource", "<svg width='100' height='100'><circle cx='50' cy='50' r='50' fill='black'/></svg>" );
- }
-
// Get the producer from the filter
mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
+ // If We have no producer then create one
if ( producer == NULL )
{
// Get the factory producer service
char *factory = mlt_properties_get( properties, "factory" );
- // Create the producer
+ // Special case circle resource
+ if ( strcmp( resource, "circle" ) == 0 )
+ {
+ // Special case to ensure that fezzik produces a pixbuf with a NULL constructor
+ resource = "pixbuf";
+
+ // Specify the svg circle
+ mlt_properties_set( properties, "producer.resource", "<svg width='100' height='100'><circle cx='50' cy='50' r='50' fill='black'/></svg>" );
+ }
+
+ // Create the producer
producer = mlt_factory_producer( factory, resource );
// If we have one
}
}
+ // Now use the shape producer
if ( producer != NULL )
{
// We will get the alpha frame from the producer
mlt_frame shape_frame = NULL;
- // Get the unique id of the filter (used to reacquire the producer position)
- char *name = mlt_properties_get( properties, "_unique_id" );
-
- // Get the original producer position
- mlt_position position = mlt_properties_get_position( mlt_frame_properties( frame ), name );
-
// Make sure the producer is in the correct position
mlt_producer_seek( producer, position );
b_frame->get_alpha_mask = filter_get_alpha_mask;
}
- // Get the image
- error = mlt_frame_get_image( frame, image, format, width, height, 0 );
-
- // Close the b frame
- mlt_frame_close( b_frame );
- b_frame = NULL;
-
- // Close the shape frame
- mlt_frame_close( shape_frame );
+ // Ensure that the shape frame will be closed
+ mlt_properties_set_data( mlt_frame_properties( b_frame ), "shape_frame", shape_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
}
}
}
- if ( b_frame != NULL )
- {
- // Get the image
- error = mlt_frame_get_image( frame, image, format, width, height, 0 );
- // Close the b frame
- mlt_frame_close( b_frame );
- }
+ // Get the image
+ error = mlt_frame_get_image( frame, image, format, width, height, 0 );
+
+ // Close the b frame
+ mlt_frame_close( b_frame );
}
return error;
static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
{
+ // Get the properties of the frame
+ mlt_properties properties = mlt_frame_properties( frame );
+
+ // Get a unique name to store the frame position
+ char *name = mlt_properties_get( mlt_filter_properties( this ), "_unique_id" );
+
+ // Assign the current position to the name
+ mlt_properties_set_position( properties, name, mlt_frame_get_position( frame ) );
+
// Push the filter on to the frame
mlt_frame_push_service( frame, this );
projects / melted / blobdiff