mlt_properties transitions;
};
-mlt_repository mlt_repository_init( const char *prefix )
+/** Construct a new repository
+*/
+
+mlt_repository mlt_repository_init( const char *directory )
{
+ // Safety check
+ if ( directory == NULL || strcmp( directory, "" ) == 0 )
+ return NULL;
+
// Construct the repository
mlt_repository this = calloc( sizeof( struct mlt_repository_s ), 1 );
mlt_properties_init( &this->parent, this );
this->filters = mlt_properties_new();
this->producers = mlt_properties_new();
this->transitions = mlt_properties_new();
-
+
// Get the directory list
mlt_properties dir = mlt_properties_new();
- int count = mlt_properties_dir_list( dir, prefix, NULL, 0 );
+ int count = mlt_properties_dir_list( dir, directory, NULL, 0 );
int i;
// Iterate over files
dlclose( object );
}
}
+ else if ( strstr( object_name, "libmlt" ) )
+ {
+ fprintf( stderr, "%s:%s: failed to dlopen %s\n", __FILE__, __FUNCTION__, object_name );
+ }
}
return this;
}
+static mlt_properties new_service( void *symbol )
+{
+ mlt_properties properties = mlt_properties_new();
+ mlt_properties_set_data( properties, "symbol", symbol, 0, NULL, NULL );
+ return properties;
+}
+
+/** Register a service with the repository
+ Typically, this is invoked by a module within its mlt_register().
+*/
+
void mlt_repository_register( mlt_repository this, mlt_service_type service_type, const char *service, void *symbol )
{
// Add the entry point to the corresponding service list
switch ( service_type )
{
case consumer_type:
- mlt_properties_set_data( this->consumers, service, symbol, 0, NULL, NULL );
+ mlt_properties_set_data( this->consumers, service, new_service( symbol ), 0, ( mlt_destructor )mlt_properties_close, NULL );
break;
case filter_type:
- mlt_properties_set_data( this->filters, service, symbol, 0, NULL, NULL );
+ mlt_properties_set_data( this->filters, service, new_service( symbol ), 0, ( mlt_destructor )mlt_properties_close, NULL );
break;
case producer_type:
- mlt_properties_set_data( this->producers, service, symbol, 0, NULL, NULL );
+ mlt_properties_set_data( this->producers, service, new_service( symbol ), 0, ( mlt_destructor )mlt_properties_close, NULL );
break;
case transition_type:
- mlt_properties_set_data( this->transitions, service, symbol, 0, NULL, NULL );
+ mlt_properties_set_data( this->transitions, service, new_service( symbol ), 0, ( mlt_destructor )mlt_properties_close, NULL );
break;
default:
break;
}
}
-void *mlt_repository_fetch( mlt_repository this, mlt_profile profile, mlt_service_type type, const char *service, void *input )
+static mlt_properties get_service_properties( mlt_repository this, mlt_service_type type, const char *service )
{
- void *( *symbol_ptr )( mlt_profile, mlt_service_type, const char *, void * ) = NULL;
+ mlt_properties service_properties = NULL;
// Get the entry point from the corresponding service list
switch ( type )
{
case consumer_type:
- symbol_ptr = mlt_properties_get_data( this->consumers, service, NULL );
+ service_properties = mlt_properties_get_data( this->consumers, service, NULL );
break;
case filter_type:
- symbol_ptr = mlt_properties_get_data( this->filters, service, NULL );
+ service_properties = mlt_properties_get_data( this->filters, service, NULL );
break;
case producer_type:
- symbol_ptr = mlt_properties_get_data( this->producers, service, NULL );
+ service_properties = mlt_properties_get_data( this->producers, service, NULL );
break;
case transition_type:
- symbol_ptr = mlt_properties_get_data( this->transitions, service, NULL );
+ service_properties = mlt_properties_get_data( this->transitions, service, NULL );
break;
default:
break;
}
+ return service_properties;
+}
+
+/** Construct a new instance of a service
+*/
+
+void *mlt_repository_create( mlt_repository this, mlt_profile profile, mlt_service_type type, const char *service, void *input )
+{
+ mlt_properties properties = get_service_properties( this, type, service );
+ if ( properties != NULL )
+ {
+ void *( *symbol_ptr )( mlt_profile, mlt_service_type, const char *, void * ) =
+ mlt_properties_get_data( properties, "symbol", NULL );
- // Construct the service
- return ( symbol_ptr != NULL ) ? symbol_ptr( profile, type, service, input ) : NULL;
+ // Construct the service
+ return ( symbol_ptr != NULL ) ? symbol_ptr( profile, type, service, input ) : NULL;
+ }
+ return NULL;
}
+/** Destroy a repository
+*/
+
void mlt_repository_close( mlt_repository this )
{
mlt_properties_close( this->consumers );
mlt_properties_close( &this->parent );
free( this );
}
+
+/** Get the list of registered consumers
+*/
+
+mlt_properties mlt_repository_consumers( mlt_repository self )
+{
+ return self->consumers;
+}
+
+/** Get the list of registered filters
+*/
+
+mlt_properties mlt_repository_filters( mlt_repository self )
+{
+ return self->filters;
+}
+
+/** Get the list of registered producers
+*/
+
+mlt_properties mlt_repository_producers( mlt_repository self )
+{
+ return self->producers;
+}
+
+/** Get the list of registered transitions
+*/
+
+mlt_properties mlt_repository_transitions( mlt_repository self )
+{
+ return self->transitions;
+}
+
+/** Register the metadata for a service
+ IMPORTANT: mlt_repository will take responsibility for deallocating the metadata properties that you supply!
+*/
+void mlt_repository_register_metadata( mlt_repository self, mlt_service_type type, const char *service, mlt_properties metadata )
+{
+ mlt_properties service_properties = get_service_properties( self, type, service );
+ mlt_properties_set_data( service_properties, "metadata", metadata, 0, ( mlt_destructor )mlt_properties_close, NULL );
+}
+
+/** Get the metadata about a service
+*/
+
+mlt_properties mlt_repository_metadata( mlt_repository self, mlt_service_type type, const char *service )
+{
+ mlt_properties properties = get_service_properties( self, type, service );
+ return mlt_properties_get_data( properties, "metadata", NULL );
+}
projects / melted / blobdiff