static void deserialize_vectors( videostab self, char *vectors, mlt_position length )
{
mlt_geometry g = mlt_geometry_init();
// Parse the property as a geometry
if ( g && !mlt_geometry_parse( g, vectors, length, -1, -1 ) )
{
struct mlt_geometry_item_s item;
int i;
// Copy the geometry items to a vc array for interp()
for ( i = 0; i < length; i++ )
{
mlt_geometry_fetch( g, &item, i );
self->pos_h[i].x = item.x;
self->pos_h[i].y = item.y;
}
}
else
{
mlt_log_warning( MLT_FILTER_SERVICE(self->parent), "failed to parse vectors\n" );
}
// We are done with this mlt_geometry
if ( g ) mlt_geometry_close( g );
}
static void serialize_vectors( videostab self, mlt_position length )
{
mlt_geometry g = mlt_geometry_init();
if ( g )
{
struct mlt_geometry_item_s item;
mlt_position i;
// Initialize geometry item
item.key = item.f[0] = item.f[1] = 1;
item.f[2] = item.f[3] = item.f[4] = 0;
for ( i = 0; i < length; i++ )
{
// Set the geometry item
item.frame = i;
item.x = self->pos_h[i].x;
item.y = self->pos_h[i].y;
// Add the geometry item
mlt_geometry_insert( g, &item );
}
// Put the analysis results in a property
mlt_geometry_set_length( g, length );
mlt_properties_set( MLT_FILTER_PROPERTIES( self->parent ), "vectors", mlt_geometry_serialise( g ) );
mlt_geometry_close( g );
}
}
