*/
#include "config.h"
-#include "mlt_factory.h"
+#include "mlt.h"
#include "mlt_repository.h"
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
/** Singleton repositories
*/
+static char *mlt_prefix = NULL;
+static mlt_properties global_properties = NULL;
+static mlt_properties object_list = NULL;
static mlt_repository producers = NULL;
static mlt_repository filters = NULL;
static mlt_repository transitions = NULL;
static mlt_repository consumers = NULL;
+static int unique_id = 0;
/** Construct the factories.
*/
-int mlt_factory_init( )
+int mlt_factory_init( char *prefix )
{
- producers = mlt_repository_init( PREFIX_DATA "/producers.dat", "mlt_create_producer" );
- filters = mlt_repository_init( PREFIX_DATA "/filters.dat", "mlt_create_filter" );
- transitions = mlt_repository_init( PREFIX_DATA "/transitions.dat", "mlt_create_transition" );
- consumers = mlt_repository_init( PREFIX_DATA "/consumers.dat", "mlt_create_consumer" );
+ // Only initialise once
+ if ( mlt_prefix == NULL )
+ {
+ // Allow user over rides
+ if ( prefix == NULL )
+ prefix = getenv( "MLT_REPOSITORY" );
+
+ // If no directory is specified, default to install directory
+ if ( prefix == NULL )
+ prefix = PREFIX_DATA;
+
+ // Store the prefix for later retrieval
+ mlt_prefix = strdup( prefix );
+
+ // Initialise the pool
+ mlt_pool_init( );
+
+ // Create the global properties
+ global_properties = mlt_properties_new( );
+ mlt_properties_set_or_default( global_properties, "MLT_NORMALISATION", getenv( "MLT_NORMALISATION" ), "PAL" );
+ mlt_properties_set_or_default( global_properties, "MLT_PRODUCER", getenv( "MLT_PRODUCER" ), "fezzik" );
+ mlt_properties_set_or_default( global_properties, "MLT_CONSUMER", getenv( "MLT_CONSUMER" ), "sdl" );
+ mlt_properties_set( global_properties, "MLT_TEST_CARD", getenv( "MLT_TEST_CARD" ) );
+
+ // Create the object list.
+ object_list = mlt_properties_new( );
+
+ // Create a repository for each service type
+ producers = mlt_repository_init( object_list, prefix, "producers.dat", "mlt_create_producer" );
+ filters = mlt_repository_init( object_list, prefix, "filters.dat", "mlt_create_filter" );
+ transitions = mlt_repository_init( object_list, prefix, "transitions.dat", "mlt_create_transition" );
+ consumers = mlt_repository_init( object_list, prefix, "consumers.dat", "mlt_create_consumer" );
+ }
+
return 0;
}
+/** Fetch the prefix used in this instance.
+*/
+
+const char *mlt_factory_prefix( )
+{
+ return mlt_prefix;
+}
+
+/** Get a value from the environment.
+*/
+
+char *mlt_environment( char *name )
+{
+ return mlt_properties_get( global_properties, name );
+}
+
/** Fetch a producer from the repository.
*/
mlt_producer mlt_factory_producer( char *service, void *input )
{
- return ( mlt_producer )mlt_repository_fetch( producers, service, input );
+ mlt_producer obj = NULL;
+
+ // Pick up the default normalising producer if necessary
+ if ( service == NULL )
+ service = mlt_environment( "MLT_PRODUCER" );
+
+ // Try to instantiate via the specified service
+ obj = mlt_repository_fetch( producers, service, input );
+
+ if ( obj != NULL )
+ {
+ mlt_properties properties = mlt_producer_properties( obj );
+ mlt_properties_set_int( properties, "_unique_id", ++ unique_id );
+ mlt_properties_set( properties, "mlt_type", "producer" );
+ if ( mlt_properties_get_int( properties, "_mlt_service_hidden" ) == 0 )
+ mlt_properties_set( properties, "mlt_service", service );
+ }
+ return obj;
}
/** Fetch a filter from the repository.
mlt_filter mlt_factory_filter( char *service, void *input )
{
- return ( mlt_filter )mlt_repository_fetch( filters, service, input );
+ mlt_filter obj = mlt_repository_fetch( filters, service, input );
+ if ( obj != NULL )
+ {
+ mlt_properties properties = mlt_filter_properties( obj );
+ mlt_properties_set_int( properties, "_unique_id", ++ unique_id );
+ mlt_properties_set( properties, "mlt_type", "filter" );
+ mlt_properties_set( properties, "mlt_service", service );
+ }
+ return obj;
}
/** Fetch a transition from the repository.
*/
-mlt_transition mlt_transition_filter( char *service, void *input )
+mlt_transition mlt_factory_transition( char *service, void *input )
{
- return ( mlt_transition )mlt_repository_fetch( transitions, service, input );
+ mlt_transition obj = mlt_repository_fetch( transitions, service, input );
+ if ( obj != NULL )
+ {
+ mlt_properties properties = mlt_transition_properties( obj );
+ mlt_properties_set_int( properties, "_unique_id", ++ unique_id );
+ mlt_properties_set( properties, "mlt_type", "transition" );
+ mlt_properties_set( properties, "mlt_service", service );
+ }
+ return obj;
}
/** Fetch a consumer from the repository
mlt_consumer mlt_factory_consumer( char *service, void *input )
{
- return ( mlt_consumer )mlt_repository_fetch( consumers, service, input );
+ mlt_consumer obj = NULL;
+
+ if ( service == NULL )
+ service = mlt_environment( "MLT_CONSUMER" );
+
+ obj = mlt_repository_fetch( consumers, service, input );
+
+ if ( obj != NULL )
+ {
+ mlt_properties properties = mlt_consumer_properties( obj );
+ mlt_properties_set_int( properties, "_unique_id", ++ unique_id );
+ mlt_properties_set( properties, "mlt_type", "consumer" );
+ mlt_properties_set( properties, "mlt_service", service );
+ }
+ return obj;
+}
+
+/** Register an object for clean up.
+*/
+
+void mlt_factory_register_for_clean_up( void *ptr, mlt_destructor destructor )
+{
+ char unique[ 256 ];
+ sprintf( unique, "%08d", mlt_properties_count( global_properties ) );
+ mlt_properties_set_data( global_properties, unique, ptr, 0, destructor, NULL );
}
/** Close the factory.
void mlt_factory_close( )
{
- mlt_repository_close( producers );
- mlt_repository_close( filters );
- mlt_repository_close( transitions );
- mlt_repository_close( consumers );
+ if ( mlt_prefix != NULL )
+ {
+ mlt_repository_close( producers );
+ mlt_repository_close( filters );
+ mlt_repository_close( transitions );
+ mlt_repository_close( consumers );
+ mlt_properties_close( global_properties );
+ mlt_properties_close( object_list );
+ free( mlt_prefix );
+ mlt_prefix = NULL;
+ mlt_pool_close( );
+ }
}