X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_factory.c;h=61093a13dfa657d8624880470768c0d81a306aaf;hb=d6aab64e889e8b27370d585452e2d712a7a948a9;hp=cf568bf539986d0d799e6bad2dfcd9a678187df8;hpb=f0a20dae7fddfce0b3992bb6942145a3640315ba;p=melted

diff --git a/src/framework/mlt_factory.c b/src/framework/mlt_factory.c
index cf568bf..61093a1 100644
--- a/src/framework/mlt_factory.c
+++ b/src/framework/mlt_factory.c
@@ -30,6 +30,7 @@
 */
 
 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;
@@ -45,6 +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;
@@ -55,6 +60,12 @@ int mlt_factory_init( char *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( );
 
@@ -76,12 +87,28 @@ 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 );
@@ -130,7 +157,13 @@ 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 );
@@ -141,6 +174,16 @@ mlt_consumer mlt_factory_consumer( char *service, void *input )
 	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.
 */
 
@@ -153,6 +196,7 @@ 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( );