X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_repository.h;h=a653b490cb0e8727b2b82f62b2ec028ba04c04e6;hb=a6e713dda24ecfa8d1432342a8f0a49b48941598;hp=c4e41427fc15c38dacb2e37abef289b10b496857;hpb=16b6d374cf80004b192aae74a55b0452c7ee809d;p=melted

diff --git a/src/framework/mlt_repository.h b/src/framework/mlt_repository.h
index c4e4142..a653b49 100644
--- a/src/framework/mlt_repository.h
+++ b/src/framework/mlt_repository.h
@@ -1,7 +1,11 @@
-/*
- * repository.h -- provides a map between service and shared objects
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Charles Yates <charles.yates@pandora.be>
+/**
+ * \file mlt_repository.h
+ * \brief provides a map between service and shared objects
+ * \see mlt_repository_s
+ *
+ * Copyright (C) 2003-2009 Ushodaya Enterprises Limited
+ * \author Charles Yates <charles.yates@pandora.be>
+ * \author Dan Dennedy <dan@dennedy.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -24,24 +28,44 @@
 #include "mlt_types.h"
 #include "mlt_profile.h"
 
-/** Repository structure forward reference.
-*/
+/** This callback is the main entry point into a module, which must be exported
+ *  with the symbol "mlt_register".
+ *
+ *  Inside the callback, the module registers the additional callbacks below.
+ */
+
+typedef void ( *mlt_repository_callback )( mlt_repository );
+
+/** The callback function that modules implement to construct a service.
+ */
+
+typedef void *( *mlt_register_callback )( mlt_profile, mlt_service_type, const char * /* service name */, const void * /* arg */ );
 
-typedef struct mlt_repository_s *mlt_repository;
+/** The callback function that modules implement to supply metadata as a properties list.
+ */
 
-/** This macro can be used to register services if the function is declared as 
-*   void mlt_register( mlt_repository )
-*/
+typedef mlt_properties ( *mlt_metadata_callback )( mlt_service_type, const char * /* service name */, void * /* callback_data */ );
+
+/** A convenience macro to create an entry point for service registration. */
 #define MLT_REPOSITORY void mlt_register( mlt_repository repository )
-#define MLT_REGISTER( type, service, symbol  ) ( mlt_repository_register( repository, (type), (service), (symbol) ) )
 
-/** Public functions.
-*/
+/** A convenience macro to a register service in a more declarative manner. */
+#define MLT_REGISTER( type, service, symbol  ) ( mlt_repository_register( repository, (type), (service), ( mlt_register_callback )(symbol) ) )
+
+/** A convenience macro to a register metadata in a more declarative manner. */
+#define MLT_REGISTER_METADATA( type, service, callback, data ) ( mlt_repository_register_metadata( repository, (type), (service), ( mlt_metadata_callback )(callback), (data) ) )
 
-extern mlt_repository mlt_repository_init( const char *prefix );
-extern void mlt_repository_register( mlt_repository self, mlt_service_type service_type, const char *service, void *symbol );
-extern void *mlt_repository_fetch( mlt_repository self, mlt_profile profile, mlt_service_type type, const char *service, void *input );
+extern mlt_repository mlt_repository_init( const char *directory );
+extern void mlt_repository_register( mlt_repository self, mlt_service_type service_type, const char *service, mlt_register_callback );
+extern void *mlt_repository_create( mlt_repository self, mlt_profile profile, mlt_service_type type, const char *service, const void *arg );
 extern void mlt_repository_close( mlt_repository self );
+extern mlt_properties mlt_repository_consumers( mlt_repository self );
+extern mlt_properties mlt_repository_filters( mlt_repository self );
+extern mlt_properties mlt_repository_producers( mlt_repository self );
+extern mlt_properties mlt_repository_transitions( mlt_repository self );
+extern void mlt_repository_register_metadata( mlt_repository self, mlt_service_type type, const char *service, mlt_metadata_callback, void *callback_data );
+extern mlt_properties mlt_repository_metadata( mlt_repository self, mlt_service_type type, const char *service );
+extern mlt_properties mlt_repository_languages( mlt_repository self );
 
 #endif