X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_factory.c;h=dee338e3bab2d36d0716568c8db2791c48454de4;hb=23571c330fd1644833dcb73661ac987eda177200;hp=85da14847e0f866bc350c1fc15ec45c2262c7c3d;hpb=7fc1fe0a1e996da9ec4b7ff410a16c3560d60982;p=melted

diff --git a/src/framework/mlt_factory.c b/src/framework/mlt_factory.c
index 85da148..dee338e 100644
--- a/src/framework/mlt_factory.c
+++ b/src/framework/mlt_factory.c
@@ -30,11 +30,13 @@
 */
 
 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.
 */
@@ -44,6 +46,10 @@ int mlt_factory_init( char *prefix )
 	// 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;
@@ -51,6 +57,15 @@ int mlt_factory_init( char *prefix )
 		// 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" );
+
 		// Create the object list.
 		object_list = mlt_properties_new( );
 
@@ -72,15 +87,32 @@ 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 )
 {
-	mlt_producer obj = 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 );
@@ -97,6 +129,7 @@ mlt_filter mlt_factory_filter( char *service, void *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 );
 	}
@@ -112,6 +145,7 @@ mlt_transition mlt_factory_transition( char *service, void *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 );
 	}
@@ -123,10 +157,17 @@ mlt_transition mlt_factory_transition( char *service, void *input )
 
 mlt_consumer mlt_factory_consumer( char *service, void *input )
 {
-	mlt_consumer obj = 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 );
 	}
@@ -145,8 +186,10 @@ void mlt_factory_close( )
 		mlt_repository_close( transitions );
 		mlt_repository_close( consumers );
 		mlt_properties_close( object_list );
+		mlt_properties_close( global_properties );
 		free( mlt_prefix );
 		mlt_prefix = NULL;
+		mlt_pool_close( );
 	}
 }