westley/libxml2 mods, mcdv/mpeg release integration

[mlt] / src / modules / westley / producer_westley.c

diff --git a/src/modules/westley/producer_westley.c b/src/modules/westley/producer_westley.c
index 2bd3204107b01e2273e8438d29b0b968d5615e8e..265475a064f32b4d8ef671263327f3e8a9d3c23c 100644 (file)
--- a/src/modules/westley/producer_westley.c
+++ b/src/modules/westley/producer_westley.c
@@ -1,5 +1,5 @@
 /*
- * producer_libdv.c -- a libxml2 parser of mlt service networks
+ * producer_westley.c -- a libxml2 parser of mlt service networks
  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
  * Author: Dan Dennedy <dan@dennedy.org>
  *
@@ -75,12 +75,21 @@ static void track_service( mlt_properties properties, void *service, mlt_destruc
 static void on_start_tractor( deserialise_context context, const xmlChar *name, const xmlChar **atts)
 {
        mlt_service service = mlt_tractor_service( mlt_tractor_init() );
+       mlt_properties properties = mlt_service_properties( service );
 
        track_service( context->destructors, service, (mlt_destructor) mlt_tractor_close );
 
+       mlt_properties_set_position( properties, "length", 0 );
+
        for ( ; atts != NULL && *atts != NULL; atts += 2 )
                mlt_properties_set( mlt_service_properties( service ), (char*) atts[0], (char*) atts[1] );
 
+       if ( mlt_properties_get_position( properties, "length" ) < mlt_properties_get_position( properties, "out" ) )
+       {
+               mlt_position length = mlt_properties_get_position( properties, "out" ) + 1;
+               mlt_properties_set_position( properties, "length", length );
+       }
+
        context_push_service( context, service );
 }
 
@@ -103,12 +112,20 @@ static void on_start_playlist( deserialise_context context, const xmlChar *name,
 
        track_service( context->destructors, service, (mlt_destructor) mlt_playlist_close );
 
+       mlt_properties_set_position( properties, "length", 0 );
+
        for ( ; atts != NULL && *atts != NULL; atts += 2 )
                mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
 
        if ( mlt_properties_get( properties, "id" ) != NULL )
                mlt_properties_set_data( context->producer_map, mlt_properties_get( properties, "id" ), service, 0, NULL, NULL );
 
+       if ( mlt_properties_get_position( properties, "length" ) < mlt_properties_get_position( properties, "out" ) )
+       {
+               mlt_position length = mlt_properties_get_position( properties, "out" ) + 1;
+               mlt_properties_set_position( properties, "length", length );
+       }
+
        context_push_service( context, service );
 }
 
@@ -118,7 +135,9 @@ static void on_start_producer( deserialise_context context, const xmlChar *name,
        mlt_service service = NULL;
 
        for ( ; atts != NULL && *atts != NULL; atts += 2 )
+       {
                mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
+       }
 
        if ( mlt_properties_get( properties, "mlt_service" ) != NULL )
        {
@@ -161,7 +180,7 @@ static void on_start_blank( deserialise_context context, const xmlChar *name, co
        }
 
        // Append a blank to the playlist
-       mlt_playlist_blank( MLT_PLAYLIST( service ), length );
+       mlt_playlist_blank( MLT_PLAYLIST( service ), length - 1 );
 
        // Push the playlist back onto the stack
        context_push_service( context, service );
@@ -205,6 +224,12 @@ static void on_start_filter( deserialise_context context, const xmlChar *name, c
        mlt_filter_connect( MLT_FILTER( service ), producer,
                mlt_properties_get_int( properties, "track" ) );
 
+       // Set in and out from producer if non existant
+       if ( mlt_properties_get( properties, "in" ) == NULL )
+               mlt_properties_set_position( properties, "in", mlt_producer_get_in( MLT_PRODUCER( producer ) ) );
+       if ( mlt_properties_get( properties, "out" ) == NULL )
+               mlt_properties_set_position( properties, "out", mlt_producer_get_out( MLT_PRODUCER( producer ) ) );
+
        // Propogate the properties
        mlt_properties_inherit( mlt_service_properties( service ), properties );
        mlt_properties_close( properties );
@@ -344,7 +369,7 @@ static void on_end_entry( deserialise_context context, const xmlChar *name )
 
 static void on_end_tractor( deserialise_context context, const xmlChar *name )
 {
-       // Discard the last producer
+       // Get and discard the last producer
        mlt_producer multitrack = MLT_PRODUCER( context_pop_service( context ) );
 
        // Inherit the producer's properties
@@ -395,8 +420,11 @@ static void on_end_element( void *ctx, const xmlChar *name )
 
 mlt_producer producer_westley_init( char *filename )
 {
+       static int init = 0;
        xmlSAXHandler *sax = calloc( 1, sizeof( xmlSAXHandler ) );
        struct deserialise_context_s *context = calloc( 1, sizeof( struct deserialise_context_s ) );
+       mlt_properties properties = NULL;
+       int i = 0;
 
        context->producer_map = mlt_properties_new();
        context->destructors = mlt_properties_new();
@@ -405,19 +433,60 @@ mlt_producer producer_westley_init( char *filename )
        sax->startElement = on_start_element;
        sax->endElement = on_end_element;
 
-       xmlInitParser();
+       if ( !init )
+       {
+               xmlInitParser();
+               //init = 1;
+       }
+
        xmlSAXUserParseFile( sax, context, filename );
-       xmlCleanupParser();
-       free( sax );
 
-       mlt_properties_close( context->producer_map );
+       // Need the complete producer list for various reasons
+       properties = context->destructors;
 
+       // Get the last producer on the stack
        mlt_service service = context_pop_service( context );
-       // make the returned service destroy the connected services
-       mlt_properties_set_data( mlt_service_properties( service ), "__destructors__", context->destructors, 0, (mlt_destructor) mlt_properties_close, NULL );
-       free( context );
 
-       mlt_properties_set( mlt_service_properties( service ), "resource", filename );
+       // Do we actually have a producer here?
+       if ( service != NULL )
+       {
+               // Now make sure we don't have a reference to the service in the properties
+               for ( i = mlt_properties_count( properties ) - 1; i >= 1; i -- )
+               {
+                       char *name = mlt_properties_get_name( properties, i );
+                       if ( mlt_properties_get_data( properties, name, NULL ) == service )
+                       {
+                               mlt_properties_set_data( properties, name, service, 0, NULL, NULL );
+                               break;
+                       }
+               }
+
+               // We are done referencing destructor property list
+               // Set this var to service properties for convenience
+               properties = mlt_service_properties( service );
+       
+               // make the returned service destroy the connected services
+               mlt_properties_set_data( properties, "__destructors__", context->destructors, 0, (mlt_destructor) mlt_properties_close, NULL );
+
+               // Now assign additional properties
+               mlt_properties_set( properties, "resource", filename );
+
+               // This tells consumer_westley not to deep copy
+               mlt_properties_set( properties, "westley", "was here" );
+       }
+       else
+       {
+               // Clean up
+               mlt_properties_close( properties );
+       }
+
+       free( context->stack_service );
+       mlt_properties_close( context->producer_map );
+       //free( context );
+       free( sax );
+       xmlCleanupParser();
+       xmlMemoryDump( );
+
 
        return MLT_PRODUCER( service );
 }