* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "mlt_repository.h"
+#include "mlt_properties.h"
+
+#include <stdio.h>
#include <stdlib.h>
+#include <dlfcn.h>
+#include <string.h>
struct mlt_repository_s
{
+ struct mlt_properties_s parent; // a list of object files
+ mlt_properties consumers; // lists of entry points
+ mlt_properties filters;
+ mlt_properties producers;
+ mlt_properties transitions;
};
-mlt_repository mlt_repository_init( char *file, char *symbol )
+mlt_repository mlt_repository_init( const char *directory )
{
- return NULL;
+ // 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->consumers = mlt_properties_new();
+ 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, directory, NULL, 0 );
+ int i;
+
+ // Iterate over files
+ for ( i = 0; i < count; i++ )
+ {
+ int flags = RTLD_NOW;
+ const char *object_name = mlt_properties_get_value( dir, i);
+
+ // Very temporary hack to allow the quicktime plugins to work
+ // TODO: extend repository to allow this to be used on a case by case basis
+ if ( strstr( object_name, "libmltkino" ) )
+ flags |= RTLD_GLOBAL;
+
+ // Open the shared object
+ void *object = dlopen( object_name, flags );
+ if ( object != NULL )
+ {
+ // Get the registration function
+ int ( *symbol_ptr )( mlt_repository ) = dlsym( object, "mlt_register" );
+
+ // Call the registration function
+ if ( symbol_ptr != NULL )
+ {
+ symbol_ptr( this );
+
+ // Register the object file for closure
+ mlt_properties_set_data( &this->parent, object_name, object, 0, ( mlt_destructor )dlclose, NULL );
+ }
+ else
+ {
+ dlclose( object );
+ }
+ }
+ }
+
+ return this;
}
-void *mlt_repository_fetch( mlt_repository this, char *service, void *input )
+void mlt_repository_register( mlt_repository this, mlt_service_type service_type, const char *service, void *symbol )
{
- return NULL;
+ // 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 );
+ break;
+ case filter_type:
+ mlt_properties_set_data( this->filters, service, symbol, 0, NULL, NULL );
+ break;
+ case producer_type:
+ mlt_properties_set_data( this->producers, service, symbol, 0, NULL, NULL );
+ break;
+ case transition_type:
+ mlt_properties_set_data( this->transitions, service, symbol, 0, NULL, NULL );
+ break;
+ default:
+ break;
+ }
}
-void mlt_repository_close( mlt_repository this )
+void *mlt_repository_create( mlt_repository this, mlt_profile profile, mlt_service_type type, const char *service, void *input )
{
-}
+ void *( *symbol_ptr )( mlt_profile, mlt_service_type, const char *, void * ) = 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 );
+ break;
+ case filter_type:
+ symbol_ptr = mlt_properties_get_data( this->filters, service, NULL );
+ break;
+ case producer_type:
+ symbol_ptr = mlt_properties_get_data( this->producers, service, NULL );
+ break;
+ case transition_type:
+ symbol_ptr = mlt_properties_get_data( this->transitions, service, NULL );
+ break;
+ default:
+ break;
+ }
+
+ // Construct the service
+ return ( symbol_ptr != NULL ) ? symbol_ptr( profile, type, service, input ) : NULL;
+}
+void mlt_repository_close( mlt_repository this )
+{
+ mlt_properties_close( this->consumers );
+ mlt_properties_close( this->filters );
+ mlt_properties_close( this->producers );
+ mlt_properties_close( this->transitions );
+ mlt_properties_close( &this->parent );
+ free( this );
+}
projects / melted / blobdiff