* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-// TODO: destroy unreferenced producers
-
+// TODO: destroy unreferenced producers (they are currently destroyed
+// when the returned producer is closed).
+
#include "producer_westley.h"
#include <framework/mlt.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
+#include <ctype.h>
+#include <unistd.h>
#include <libxml/parser.h>
+#include <libxml/parserInternals.h> // for xmlCreateFileParserCtxt
+#include <libxml/tree.h>
#define STACK_SIZE 1000
+#define BRANCH_SIG_LEN 4000
+
+#undef DEBUG
+#ifdef DEBUG
+extern xmlDocPtr westley_make_doc( mlt_service service );
+#endif
+
+enum service_type
+{
+ mlt_invalid_type,
+ mlt_unknown_type,
+ mlt_producer_type,
+ mlt_playlist_type,
+ mlt_entry_type,
+ mlt_tractor_type,
+ mlt_multitrack_type,
+ mlt_filter_type,
+ mlt_transition_type,
+ mlt_consumer_type,
+ mlt_field_type,
+ mlt_services_type,
+ mlt_dummy_filter_type,
+ mlt_dummy_transition_type,
+ mlt_dummy_producer_type,
+};
struct deserialise_context_s
{
+ enum service_type stack_types[ STACK_SIZE ];
mlt_service stack_service[ STACK_SIZE ];
int stack_service_size;
- int track_count;
mlt_properties producer_map;
mlt_properties destructors;
+ char *property;
+ int is_value;
+ xmlDocPtr value_doc;
+ xmlNodePtr stack_node[ STACK_SIZE ];
+ int stack_node_size;
+ xmlDocPtr entity_doc;
+ int entity_is_replace;
+ int depth;
+ int branch[ STACK_SIZE ];
+ const xmlChar *publicId;
+ const xmlChar *systemId;
+ mlt_properties params;
};
typedef struct deserialise_context_s *deserialise_context;
+/** Convert the numerical current branch address to a dot-delimited string.
+*/
+static char *serialise_branch( deserialise_context this, char *s )
+{
+ int i;
+
+ s[0] = 0;
+ for ( i = 0; i < this->depth; i++ )
+ {
+ int len = strlen( s );
+ snprintf( s + len, BRANCH_SIG_LEN - len, "%d.", this->branch[ i ] );
+ }
+ return s;
+}
/** Push a service.
*/
-static int context_push_service( deserialise_context this, mlt_service that )
+static int context_push_service( deserialise_context this, mlt_service that, enum service_type type )
{
- int ret = this->stack_service_size >= STACK_SIZE;
+ int ret = this->stack_service_size >= STACK_SIZE - 1;
if ( ret == 0 )
- this->stack_service[ this->stack_service_size ++ ] = that;
+ {
+ this->stack_service[ this->stack_service_size ] = that;
+ this->stack_types[ this->stack_service_size++ ] = type;
+
+ // Record the tree branch on which this service lives
+ if ( that != NULL && mlt_properties_get( MLT_SERVICE_PROPERTIES( that ), "_westley_branch" ) == NULL )
+ {
+ char s[ BRANCH_SIG_LEN ];
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( that ), "_westley_branch", serialise_branch( this, s ) );
+ }
+ }
return ret;
}
/** Pop a service.
*/
-static mlt_service context_pop_service( deserialise_context this )
+static mlt_service context_pop_service( deserialise_context this, enum service_type *type )
{
mlt_service result = NULL;
if ( this->stack_service_size > 0 )
+ {
result = this->stack_service[ -- this->stack_service_size ];
+ if ( type != NULL )
+ *type = this->stack_types[ this->stack_service_size ];
+ }
return result;
}
+/** Push a node.
+*/
+
+static int context_push_node( deserialise_context this, xmlNodePtr node )
+{
+ int ret = this->stack_node_size >= STACK_SIZE - 1;
+ if ( ret == 0 )
+ this->stack_node[ this->stack_node_size ++ ] = node;
+ return ret;
+}
+
+/** Pop a node.
+*/
+
+static xmlNodePtr context_pop_node( deserialise_context this )
+{
+ xmlNodePtr result = NULL;
+ if ( this->stack_node_size > 0 )
+ result = this->stack_node[ -- this->stack_node_size ];
+ return result;
+}
+
+
// Set the destructor on a new service
static void track_service( mlt_properties properties, void *service, mlt_destructor destructor )
{
mlt_properties_set_int( properties, "registered", ++ registered );
}
+
+// Prepend the property value with the document root
+static inline void qualify_property( deserialise_context context, mlt_properties properties, char *name )
+{
+ char *resource = mlt_properties_get( properties, name );
+ if ( resource != NULL )
+ {
+ // Qualify file name properties
+ char *root = mlt_properties_get( context->producer_map, "root" );
+ if ( root != NULL && strcmp( root, "" ) )
+ {
+ char *full_resource = malloc( strlen( root ) + strlen( resource ) + 2 );
+ if ( resource[ 0 ] != '/' && strchr( resource, ':' ) == NULL )
+ {
+ strcpy( full_resource, root );
+ strcat( full_resource, "/" );
+ strcat( full_resource, resource );
+ }
+ else
+ {
+ strcpy( full_resource, resource );
+ }
+ mlt_properties_set( properties, name, full_resource );
+ free( full_resource );
+ }
+ }
+}
+
+
+/** This function adds a producer to a playlist or multitrack when
+ there is no entry or track element.
+*/
+
+static int add_producer( deserialise_context context, mlt_service service, mlt_position in, mlt_position out )
+{
+ // Return value (0 = service remains top of stack, 1 means it can be removed)
+ int result = 0;
+
+ // Get the parent producer
+ enum service_type type;
+ mlt_service container = context_pop_service( context, &type );
+ int contained = 0;
+
+ if ( service != NULL && container != NULL )
+ {
+ char *container_branch = mlt_properties_get( MLT_SERVICE_PROPERTIES( container ), "_westley_branch" );
+ char *service_branch = mlt_properties_get( MLT_SERVICE_PROPERTIES( service ), "_westley_branch" );
+ contained = !strncmp( container_branch, service_branch, strlen( container_branch ) );
+ }
+
+ if ( contained )
+ {
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+ char *hide_s = mlt_properties_get( properties, "hide" );
+
+ // Indicate that this service is no longer top of stack
+ result = 1;
+
+ switch( type )
+ {
+ case mlt_tractor_type:
+ {
+ mlt_multitrack multitrack = mlt_tractor_multitrack( MLT_TRACTOR( container ) );
+ mlt_multitrack_connect( multitrack, MLT_PRODUCER( service ), mlt_multitrack_count( multitrack ) );
+ }
+ break;
+ case mlt_multitrack_type:
+ {
+ mlt_multitrack_connect( MLT_MULTITRACK( container ),
+ MLT_PRODUCER( service ),
+ mlt_multitrack_count( MLT_MULTITRACK( container ) ) );
+ }
+ break;
+ case mlt_playlist_type:
+ {
+ mlt_playlist_append_io( MLT_PLAYLIST( container ), MLT_PRODUCER( service ), in, out );
+ }
+ break;
+ default:
+ result = 0;
+ fprintf( stderr, "Producer defined inside something that isn't a container\n" );
+ break;
+ };
+
+ // Set the hide state of the track producer
+ if ( hide_s != NULL )
+ {
+ if ( strcmp( hide_s, "video" ) == 0 )
+ mlt_properties_set_int( properties, "hide", 1 );
+ else if ( strcmp( hide_s, "audio" ) == 0 )
+ mlt_properties_set_int( properties, "hide", 2 );
+ else if ( strcmp( hide_s, "both" ) == 0 )
+ mlt_properties_set_int( properties, "hide", 3 );
+ }
+ }
+
+ // Put the parent producer back
+ if ( container != NULL )
+ context_push_service( context, container, type );
+
+ return result;
+}
+
+/** Attach filters defined on that to this.
+*/
+
+static void attach_filters( mlt_service this, mlt_service that )
+{
+ if ( that != NULL )
+ {
+ int i = 0;
+ mlt_filter filter = NULL;
+ for ( i = 0; ( filter = mlt_service_filter( that, i ) ) != NULL; i ++ )
+ {
+ mlt_service_attach( this, filter );
+ attach_filters( MLT_FILTER_SERVICE( filter ), MLT_FILTER_SERVICE( filter ) );
+ }
+ }
+}
+
static void on_start_tractor( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- mlt_service service = mlt_tractor_service( mlt_tractor_init() );
+ mlt_tractor tractor = mlt_tractor_new( );
+ mlt_service service = MLT_TRACTOR_SERVICE( tractor );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
track_service( context->destructors, service, (mlt_destructor) mlt_tractor_close );
for ( ; atts != NULL && *atts != NULL; atts += 2 )
- mlt_properties_set( mlt_service_properties( service ), (char*) atts[0], (char*) atts[1] );
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( service ), (char*) atts[0], atts[1] == NULL ? "" : (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 );
+
+ context_push_service( context, service, mlt_tractor_type );
+}
+
+static void on_end_tractor( deserialise_context context, const xmlChar *name )
+{
+ // Get the tractor
+ enum service_type type;
+ mlt_service tractor = context_pop_service( context, &type );
- context_push_service( context, service );
+ if ( tractor != NULL && type == mlt_tractor_type )
+ {
+ // See if the tractor should be added to a playlist or multitrack
+ if ( add_producer( context, tractor, 0, mlt_producer_get_out( MLT_PRODUCER( tractor ) ) ) == 0 )
+ context_push_service( context, tractor, type );
+ }
+ else
+ {
+ fprintf( stderr, "Invalid state for tractor\n" );
+ }
}
static void on_start_multitrack( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- mlt_service service = mlt_multitrack_service( mlt_multitrack_init() );
+ enum service_type type;
+ mlt_service parent = context_pop_service( context, &type );
+
+ // If we don't have a parent, then create one now, providing we're in a state where we can
+ if ( parent == NULL || ( type == mlt_playlist_type || type == mlt_multitrack_type ) )
+ {
+ mlt_tractor tractor = NULL;
+ // Push the parent back
+ if ( parent != NULL )
+ context_push_service( context, parent, type );
+
+ // Create a tractor to contain the multitrack
+ tractor = mlt_tractor_new( );
+ parent = MLT_TRACTOR_SERVICE( tractor );
+ track_service( context->destructors, parent, (mlt_destructor) mlt_tractor_close );
+ type = mlt_tractor_type;
+
+ // Flag it as a synthesised tractor for clean up later
+ mlt_properties_set_int( MLT_SERVICE_PROPERTIES( parent ), "fezzik_synth", 1 );
+ }
+
+ if ( type == mlt_tractor_type )
+ {
+ mlt_service service = MLT_SERVICE( mlt_tractor_multitrack( MLT_TRACTOR( parent ) ) );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ mlt_properties_set( properties, (char*) atts[0], atts[1] == NULL ? "" : (char*) atts[1] );
- track_service( context->destructors, service, (mlt_destructor) mlt_multitrack_close );
+ if ( mlt_properties_get( properties, "id" ) != NULL )
+ mlt_properties_set_data( context->producer_map, mlt_properties_get( properties,"id" ), service, 0, NULL, NULL );
- for ( ; atts != NULL && *atts != NULL; atts += 2 )
- mlt_properties_set( mlt_service_properties( service ), (char*) atts[0], (char*) atts[1] );
+ context_push_service( context, parent, type );
+ context_push_service( context, service, mlt_multitrack_type );
+ }
+ else
+ {
+ fprintf( stderr, "Invalid multitrack position\n" );
+ }
+}
- context_push_service( context, service );
+static void on_end_multitrack( deserialise_context context, const xmlChar *name )
+{
+ // Get the multitrack from the stack
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+
+ if ( service == NULL || type != mlt_multitrack_type )
+ fprintf( stderr, "End multitrack in the wrong state...\n" );
}
static void on_start_playlist( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- mlt_service service = mlt_playlist_service( mlt_playlist_init() );
- mlt_properties properties = mlt_service_properties( service );
+ mlt_playlist playlist = mlt_playlist_init( );
+ mlt_service service = MLT_PLAYLIST_SERVICE( playlist );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
track_service( context->destructors, service, (mlt_destructor) mlt_playlist_close );
for ( ; atts != NULL && *atts != NULL; atts += 2 )
- mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
+ {
+ mlt_properties_set( properties, (char*) atts[0], atts[1] == NULL ? "" : (char*) atts[1] );
+
+ // Out will be overwritten later as we append, so we need to save it
+ if ( strcmp( atts[ 0 ], "out" ) == 0 )
+ mlt_properties_set( properties, "_westley.out", ( 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 );
- context_push_service( context, service );
+ context_push_service( context, service, mlt_playlist_type );
}
-static void on_start_producer( deserialise_context context, const xmlChar *name, const xmlChar **atts)
+static void on_end_playlist( deserialise_context context, const xmlChar *name )
{
- mlt_properties properties = mlt_properties_new();
- mlt_service service = NULL;
+ // Get the playlist from the stack
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
- for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ if ( service != NULL && type == mlt_playlist_type )
{
- mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
- }
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+ mlt_position in = mlt_properties_get_position( properties, "in" );
+ mlt_position out = mlt_properties_get_position( properties, "out" );
- if ( mlt_properties_get( properties, "mlt_service" ) != NULL )
- {
- service = MLT_SERVICE( mlt_factory_producer( mlt_properties_get( properties, "mlt_service" ),
- mlt_properties_get( properties, "resource" ) ) );
+ // See if the playlist should be added to a playlist or multitrack
+ if ( add_producer( context, service, in, out ) == 0 )
+ context_push_service( context, service, type );
}
else
{
- // Unspecified producer, use inigo
- char *args[2] = { mlt_properties_get( properties, "resource" ), 0 };
- service = MLT_SERVICE( mlt_factory_producer( "inigo", args ) );
+ fprintf( stderr, "Invalid state of playlist end\n" );
}
+}
+
+static void on_start_producer( deserialise_context context, const xmlChar *name, const xmlChar **atts)
+{
+ // use a dummy service to hold properties to allow arbitrary nesting
+ mlt_service service = calloc( 1, sizeof( struct mlt_service_s ) );
+ mlt_service_init( service, NULL );
- track_service( context->destructors, service, (mlt_destructor) mlt_producer_close );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
- // Add the producer to the producer map
- if ( mlt_properties_get( properties, "id" ) != NULL )
- mlt_properties_set_data( context->producer_map, mlt_properties_get( properties, "id" ), service, 0, NULL, NULL );
+ context_push_service( context, service, mlt_dummy_producer_type );
+
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ mlt_properties_set( properties, (char*) atts[0], atts[1] == NULL ? "" : (char*) atts[1] );
+}
+
+static void on_end_producer( deserialise_context context, const xmlChar *name )
+{
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+
+ if ( service != NULL && type == mlt_dummy_producer_type )
+ {
+ mlt_service producer = NULL;
+
+ qualify_property( context, properties, "resource" );
+ char *resource = mlt_properties_get( properties, "resource" );
+
+ // Let Kino-SMIL src be a synonym for resource
+ if ( resource == NULL )
+ {
+ qualify_property( context, properties, "src" );
+ resource = mlt_properties_get( properties, "src" );
+ }
+
+ // Instantiate the producer
+ if ( mlt_properties_get( properties, "mlt_service" ) != NULL )
+ {
+ char temp[ 1024 ];
+ strncpy( temp, mlt_properties_get( properties, "mlt_service" ), 1024 );
+ if ( resource != NULL )
+ {
+ strcat( temp, ":" );
+ strncat( temp, resource, 1023 - strlen( temp ) );
+ }
+ producer = MLT_SERVICE( mlt_factory_producer( "fezzik", temp ) );
+ }
+
+ // Just in case the plugin requested doesn't exist...
+ if ( producer == NULL && resource != NULL )
+ producer = MLT_SERVICE( mlt_factory_producer( "fezzik", resource ) );
+
+ if ( producer == NULL )
+ producer = MLT_SERVICE( mlt_factory_producer( "fezzik", "+INVALID.txt" ) );
+
+ // Track this producer
+ track_service( context->destructors, producer, (mlt_destructor) mlt_producer_close );
+
+ // Propogate the properties
+ qualify_property( context, properties, "resource" );
+ qualify_property( context, properties, "luma" );
+ qualify_property( context, properties, "luma.resource" );
+ qualify_property( context, properties, "composite.luma" );
+ qualify_property( context, properties, "producer.resource" );
+
+ // Handle in/out properties separately
+ mlt_position in = -1;
+ mlt_position out = -1;
+
+ // Get in
+ if ( mlt_properties_get( properties, "in" ) != NULL )
+ in = mlt_properties_get_position( properties, "in" );
+ // Let Kino-SMIL clipBegin be a synonym for in
+ if ( mlt_properties_get( properties, "clipBegin" ) != NULL )
+ in = mlt_properties_get_position( properties, "clipBegin" );
+ // Get out
+ if ( mlt_properties_get( properties, "out" ) != NULL )
+ out = mlt_properties_get_position( properties, "out" );
+ // Let Kino-SMIL clipEnd be a synonym for out
+ if ( mlt_properties_get( properties, "clipEnd" ) != NULL )
+ out = mlt_properties_get_position( properties, "clipEnd" );
+
+ // Remove in and out
+ mlt_properties_set( properties, "in", NULL );
+ mlt_properties_set( properties, "out", NULL );
+
+ // Inherit the properties
+ mlt_properties_inherit( MLT_SERVICE_PROPERTIES( producer ), properties );
+
+ // Attach all filters from service onto producer
+ attach_filters( producer, service );
+
+ // Add the producer to the producer map
+ if ( mlt_properties_get( properties, "id" ) != NULL )
+ mlt_properties_set_data( context->producer_map, mlt_properties_get(properties, "id"), producer, 0, NULL, NULL );
+
+ // See if the producer should be added to a playlist or multitrack
+ if ( add_producer( context, producer, in, out ) == 0 )
+ {
+ // Otherwise, set in and out on...
+ if ( in != -1 || out != -1 )
+ {
+ // Get the parent service
+ enum service_type type;
+ mlt_service parent = context_pop_service( context, &type );
+ if ( parent != NULL )
+ {
+ // Get the parent properties
+ properties = MLT_SERVICE_PROPERTIES( parent );
+
+ char *resource = mlt_properties_get( properties, "resource" );
+
+ // Put the parent producer back
+ context_push_service( context, parent, type );
+
+ // If the parent is a track or entry
+ if ( resource && ( strcmp( resource, "<entry>" ) == 0 ) )
+ {
+ mlt_properties_set_position( properties, "in", in );
+ mlt_properties_set_position( properties, "out", out );
+ }
+ else
+ {
+ // Otherwise, set in and out on producer directly
+ mlt_producer_set_in_and_out( MLT_PRODUCER( producer ), in, out );
+ }
+ }
+ else
+ {
+ // Otherwise, set in and out on producer directly
+ mlt_producer_set_in_and_out( MLT_PRODUCER( producer ), in, out );
+ }
+ }
- mlt_properties_inherit( mlt_service_properties( service ), properties );
- mlt_properties_close( properties );
+ // Push the producer onto the stack
+ context_push_service( context, producer, mlt_producer_type );
+ }
- context_push_service( context, service );
+ mlt_service_close( service );
+ }
}
static void on_start_blank( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
// Get the playlist from the stack
- mlt_service service = context_pop_service( context );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
mlt_position length = 0;
-
- // Look for the length attribute
- for ( ; atts != NULL && *atts != NULL; atts += 2 )
+
+ if ( type == mlt_playlist_type && service != NULL )
{
- if ( strcmp( atts[0], "length" ) == 0 )
+ // Look for the length attribute
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
{
- length = atoll( atts[1] );
- break;
+ if ( strcmp( atts[0], "length" ) == 0 )
+ {
+ length = atoll( atts[1] );
+ break;
+ }
}
- }
- // Append a blank to the playlist
- mlt_playlist_blank( MLT_PLAYLIST( service ), length );
+ // Append a blank to the playlist
+ mlt_playlist_blank( MLT_PLAYLIST( service ), length - 1 );
- // Push the playlist back onto the stack
- context_push_service( context, service );
+ // Push the playlist back onto the stack
+ context_push_service( context, service, type );
+ }
+ else
+ {
+ fprintf( stderr, "blank without a playlist - a definite no no\n" );
+ }
}
-static void on_start_entry_track( deserialise_context context, const xmlChar *name, const xmlChar **atts)
+static void on_start_entry( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- // Look for the producer attribute
+ mlt_producer entry = NULL;
+ mlt_properties temp = mlt_properties_new( );
+
for ( ; atts != NULL && *atts != NULL; atts += 2 )
{
- if ( strcmp( atts[0], "producer" ) == 0 )
+ mlt_properties_set( temp, (char*) atts[0], atts[1] == NULL ? "" : (char*) atts[1] );
+
+ // Look for the producer attribute
+ if ( strcmp( atts[ 0 ], "producer" ) == 0 )
{
- if ( mlt_properties_get_data( context->producer_map, (char*) atts[1], NULL ) != NULL )
- // Push the referenced producer onto the stack
- context_push_service( context, MLT_SERVICE( mlt_properties_get_data( context->producer_map, (char*) atts[1], NULL ) ) );
- break;
+ mlt_producer producer = mlt_properties_get_data( context->producer_map, (char*) atts[1], NULL );
+ if ( producer != NULL )
+ mlt_properties_set_data( temp, "producer", producer, 0, NULL, NULL );
}
}
-}
-static void on_start_filter( deserialise_context context, const xmlChar *name, const xmlChar **atts)
-{
- char *id;
- mlt_properties properties = mlt_properties_new();
- char key[11];
- key[ 10 ] = '\0';
+ // If we have a valid entry
+ if ( mlt_properties_get_data( temp, "producer", NULL ) != NULL )
+ {
+ mlt_playlist_clip_info info;
+ enum service_type parent_type;
+ mlt_service parent = context_pop_service( context, &parent_type );
+ mlt_producer producer = mlt_properties_get_data( temp, "producer", NULL );
- // Get the producer from the stack
- mlt_service producer = context_pop_service( context );
+ if ( parent_type == mlt_playlist_type )
+ {
+ // Append the producer to the playlist
+ if ( mlt_properties_get( temp, "in" ) != NULL || mlt_properties_get( temp, "out" ) != NULL )
+ {
+ mlt_playlist_append_io( MLT_PLAYLIST( parent ), producer,
+ mlt_properties_get_position( temp, "in" ),
+ mlt_properties_get_position( temp, "out" ) );
+ }
+ else
+ {
+ mlt_playlist_append( MLT_PLAYLIST( parent ), producer );
+ }
- // Set the properties
- for ( ; atts != NULL && *atts != NULL; atts += 2 )
- mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
+ // Handle the repeat property
+ if ( mlt_properties_get_int( temp, "repeat" ) > 0 )
+ {
+ mlt_playlist_repeat_clip( MLT_PLAYLIST( parent ),
+ mlt_playlist_count( MLT_PLAYLIST( parent ) ) - 1,
+ mlt_properties_get_int( temp, "repeat" ) );
+ }
- // Create the filter
- mlt_service service = MLT_SERVICE( mlt_factory_filter( mlt_properties_get( properties, "mlt_service" ), NULL ) );
+ mlt_playlist_get_clip_info( MLT_PLAYLIST( parent ), &info, mlt_playlist_count( MLT_PLAYLIST( parent ) ) - 1 );
+ entry = info.cut;
+ }
+ else
+ {
+ fprintf( stderr, "Entry not part of a playlist...\n" );
+ }
- track_service( context->destructors, service, (mlt_destructor) mlt_filter_close );
-
- // Connect the filter to the producer
- mlt_filter_connect( MLT_FILTER( service ), producer,
- mlt_properties_get_int( properties, "track" ) );
+ context_push_service( context, parent, parent_type );
+ }
- // 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 ) ) );
+ // Push the cut onto the stack
+ context_push_service( context, MLT_PRODUCER_SERVICE( entry ), mlt_entry_type );
- // Propogate the properties
- mlt_properties_inherit( mlt_service_properties( service ), properties );
- mlt_properties_close( properties );
+ mlt_properties_close( temp );
+}
- // Get the parent producer from the stack
- mlt_service tractor = context_pop_service( context );
+static void on_end_entry( deserialise_context context, const xmlChar *name )
+{
+ // Get the entry from the stack
+ enum service_type entry_type;
+ mlt_service entry = context_pop_service( context, &entry_type );
- if ( tractor != NULL )
+ if ( entry == NULL && entry_type != mlt_entry_type )
{
- // Connect the filter to the tractor
- if ( strcmp( mlt_properties_get( mlt_service_properties( tractor ), "resource" ), "<tractor>" ) == 0 )
- mlt_tractor_connect( MLT_TRACTOR( tractor ), service );
-
- // Push the parent producer back onto the stack
- context_push_service( context, tractor );
+ fprintf( stderr, "Invalid state at end of entry\n" );
}
+}
+
+static void on_start_track( deserialise_context context, const xmlChar *name, const xmlChar **atts)
+{
+ // use a dummy service to hold properties to allow arbitrary nesting
+ mlt_service service = calloc( 1, sizeof( struct mlt_service_s ) );
+ mlt_service_init( service, NULL );
- // If a producer alias is in the producer_map, get it
- snprintf( key, 10, "%p", producer );
- if ( mlt_properties_get_data( context->producer_map, key, NULL ) != NULL )
- producer = mlt_properties_get_data( context->producer_map, key, NULL );
+ // Push the dummy service onto the stack
+ context_push_service( context, service, mlt_entry_type );
- // Put the producer in the producer map
- id = mlt_properties_get( mlt_service_properties( producer ), "id" );
- if ( id != NULL )
- mlt_properties_set_data( context->producer_map, id, service, 0, NULL, NULL );
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( service ), "resource", "<track>" );
- // For filter chain support, add an alias to the producer map
- snprintf( key, 10, "%p", service );
- mlt_properties_set_data( context->producer_map, key, producer, 0, NULL, NULL );
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ {
+ mlt_properties_set( MLT_SERVICE_PROPERTIES( service ), (char*) atts[0], atts[1] == NULL ? "" : (char*) atts[1] );
+
+ // Look for the producer attribute
+ if ( strcmp( atts[ 0 ], "producer" ) == 0 )
+ {
+ mlt_producer producer = mlt_properties_get_data( context->producer_map, (char*) atts[1], NULL );
+ if ( producer != NULL )
+ mlt_properties_set_data( MLT_SERVICE_PROPERTIES( service ), "producer", producer, 0, NULL, NULL );
+ }
+ }
+}
- // Push the filter onto the stack
- context_push_service( context, service );
+static void on_end_track( deserialise_context context, const xmlChar *name )
+{
+ // Get the track from the stack
+ enum service_type track_type;
+ mlt_service track = context_pop_service( context, &track_type );
+
+ if ( track != NULL && track_type == mlt_entry_type )
+ {
+ mlt_properties track_props = MLT_SERVICE_PROPERTIES( track );
+ enum service_type parent_type;
+ mlt_service parent = context_pop_service( context, &parent_type );
+ mlt_multitrack multitrack = NULL;
+
+ mlt_producer producer = mlt_properties_get_data( track_props, "producer", NULL );
+ mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
+
+ if ( parent_type == mlt_tractor_type )
+ multitrack = mlt_tractor_multitrack( MLT_TRACTOR( parent ) );
+ else if ( parent_type == mlt_multitrack_type )
+ multitrack = MLT_MULTITRACK( parent );
+ else
+ fprintf( stderr, "track contained in an invalid container\n" );
+
+ if ( multitrack != NULL )
+ {
+ // Set producer i/o if specified
+ if ( mlt_properties_get( track_props, "in" ) != NULL ||
+ mlt_properties_get( track_props, "out" ) != NULL )
+ {
+ mlt_producer cut = mlt_producer_cut( MLT_PRODUCER( producer ),
+ mlt_properties_get_position( track_props, "in" ),
+ mlt_properties_get_position( track_props, "out" ) );
+ mlt_multitrack_connect( multitrack, cut, mlt_multitrack_count( multitrack ) );
+ mlt_properties_inherit( MLT_PRODUCER_PROPERTIES( cut ), track_props );
+ track_props = MLT_PRODUCER_PROPERTIES( cut );
+ mlt_producer_close( cut );
+ }
+ else
+ {
+ mlt_multitrack_connect( multitrack, producer, mlt_multitrack_count( multitrack ) );
+ }
+
+ // Set the hide state of the track producer
+ char *hide_s = mlt_properties_get( track_props, "hide" );
+ if ( hide_s != NULL )
+ {
+ if ( strcmp( hide_s, "video" ) == 0 )
+ mlt_properties_set_int( producer_props, "hide", 1 );
+ else if ( strcmp( hide_s, "audio" ) == 0 )
+ mlt_properties_set_int( producer_props, "hide", 2 );
+ else if ( strcmp( hide_s, "both" ) == 0 )
+ mlt_properties_set_int( producer_props, "hide", 3 );
+ }
+ }
+
+ if ( parent != NULL )
+ context_push_service( context, parent, parent_type );
+
+ mlt_service_close( track );
+ }
+ else
+ {
+ fprintf( stderr, "Invalid state at end of track\n" );
+ }
}
-static void on_start_transition( deserialise_context context, const xmlChar *name, const xmlChar **atts)
+static void on_start_filter( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- mlt_properties properties = mlt_properties_new();
+ // use a dummy service to hold properties to allow arbitrary nesting
+ mlt_service service = calloc( 1, sizeof( struct mlt_service_s ) );
+ mlt_service_init( service, NULL );
+
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
- // Get the producer from the stack
- mlt_service producer = context_pop_service( context );
+ context_push_service( context, service, mlt_dummy_filter_type );
// Set the properties
for ( ; atts != NULL && *atts != NULL; atts += 2 )
mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
+}
- // Create the transition
- mlt_service service = MLT_SERVICE( mlt_factory_transition( mlt_properties_get( properties, "mlt_service" ), NULL ) );
+static void on_end_filter( deserialise_context context, const xmlChar *name )
+{
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
- track_service( context->destructors, service, (mlt_destructor) mlt_transition_close );
+ enum service_type parent_type;
+ mlt_service parent = context_pop_service( context, &parent_type );
- // Propogate the properties
- mlt_properties_inherit( mlt_service_properties( service ), properties );
- mlt_properties_close( properties );
+ if ( service != NULL && type == mlt_dummy_filter_type )
+ {
+ mlt_service filter = MLT_SERVICE( mlt_factory_filter( mlt_properties_get( properties, "mlt_service" ), NULL ) );
+ mlt_properties filter_props = MLT_SERVICE_PROPERTIES( filter );
- // Connect the filter to the producer
- mlt_transition_connect( MLT_TRANSITION( service ), producer,
- mlt_properties_get_int( mlt_service_properties( service ), "a_track" ),
- mlt_properties_get_int( mlt_service_properties( service ), "b_track" ) );
+ track_service( context->destructors, filter, (mlt_destructor) mlt_filter_close );
- // Get the tractor from the stack
- mlt_service tractor = context_pop_service( context );
+ // Propogate the properties
+ qualify_property( context, properties, "resource" );
+ qualify_property( context, properties, "luma" );
+ qualify_property( context, properties, "luma.resource" );
+ qualify_property( context, properties, "composite.luma" );
+ qualify_property( context, properties, "producer.resource" );
+ mlt_properties_inherit( filter_props, properties );
- // Connect the tractor to the transition
- mlt_tractor_connect( MLT_TRACTOR( tractor ), service );
+ // Attach all filters from service onto filter
+ attach_filters( filter, service );
- // Push the tractor back onto the stack
- context_push_service( context, tractor );
+ // Associate the filter with the parent
+ if ( parent != NULL )
+ {
+ if ( parent_type == mlt_tractor_type )
+ {
+ mlt_field field = mlt_tractor_field( MLT_TRACTOR( parent ) );
+ mlt_field_plant_filter( field, MLT_FILTER( filter ), mlt_properties_get_int( properties, "track" ) );
+ mlt_filter_set_in_and_out( MLT_FILTER( filter ),
+ mlt_properties_get_int( properties, "in" ),
+ mlt_properties_get_int( properties, "out" ) );
+ }
+ else
+ {
+ mlt_service_attach( parent, MLT_FILTER( filter ) );
+ }
+
+ // Put the parent back on the stack
+ context_push_service( context, parent, parent_type );
+ }
+ else
+ {
+ fprintf( stderr, "filter closed with invalid parent...\n" );
+ }
- // Push the transition onto the stack
- context_push_service( context, service );
+ // Close the dummy filter service
+ mlt_service_close( service );
+ }
+ else
+ {
+ fprintf( stderr, "Invalid top of stack on filter close\n" );
+ }
}
-static void on_end_multitrack( deserialise_context context, const xmlChar *name )
+static void on_start_transition( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- // Get the producer (multitrack) from the stack
- mlt_service producer = context_pop_service( context );
+ // use a dummy service to hold properties to allow arbitrary nesting
+ mlt_service service = calloc( 1, sizeof( struct mlt_service_s ) );
+ mlt_service_init( service, NULL );
- // Get the tractor from the stack
- mlt_service service = context_pop_service( context );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
- // Connect the tractor to the producer
- mlt_tractor_connect( MLT_TRACTOR( service ), producer );
- mlt_properties_set_data( mlt_service_properties( service ), "multitrack",
- MLT_MULTITRACK( producer ), 0, NULL, NULL );
+ context_push_service( context, service, mlt_dummy_transition_type );
- // Push the tractor back onto the stack
- context_push_service( context, service );
-
- // Push the producer back onto the stack
- context_push_service( context, producer );
+ // Set the properties
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ mlt_properties_set( properties, (char*) atts[0], (char*) atts[1] );
}
-static void on_end_playlist( deserialise_context context, const xmlChar *name )
+static void on_end_transition( deserialise_context context, const xmlChar *name )
{
- // Get the producer (playlist) from the stack
- mlt_service producer = context_pop_service( context );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
- // Push the producer back onto the stack
- context_push_service( context, producer );
-}
+ enum service_type parent_type;
+ mlt_service parent = context_pop_service( context, &parent_type );
-static void on_end_track( deserialise_context context, const xmlChar *name )
-{
- // Get the producer from the stack
- mlt_service producer = context_pop_service( context );
+ if ( service != NULL && type == mlt_dummy_transition_type )
+ {
+ mlt_service effect = MLT_SERVICE( mlt_factory_transition(mlt_properties_get(properties,"mlt_service"), NULL ) );
+ mlt_properties effect_props = MLT_SERVICE_PROPERTIES( effect );
- // Get the multitrack from the stack
- mlt_service service = context_pop_service( context );
+ track_service( context->destructors, effect, (mlt_destructor) mlt_transition_close );
+
+ // Propogate the properties
+ qualify_property( context, properties, "resource" );
+ qualify_property( context, properties, "luma" );
+ qualify_property( context, properties, "luma.resource" );
+ qualify_property( context, properties, "composite.luma" );
+ qualify_property( context, properties, "producer.resource" );
+ mlt_properties_inherit( effect_props, properties );
- // Set the track on the multitrack
- mlt_multitrack_connect( MLT_MULTITRACK( service ),
- MLT_PRODUCER( producer ),
- context->track_count++ );
+ // Attach all filters from service onto effect
+ attach_filters( effect, service );
- // Push the multitrack back onto the stack
- context_push_service( context, service );
+ // Associate the filter with the parent
+ if ( parent != NULL )
+ {
+ if ( parent_type == mlt_tractor_type )
+ {
+ mlt_field field = mlt_tractor_field( MLT_TRACTOR( parent ) );
+ if ( mlt_properties_get_int( properties, "a_track" ) == mlt_properties_get_int( properties, "b_track" ) )
+ mlt_properties_set_int( properties, "b_track", mlt_properties_get_int( properties, "a_track" ) + 1 );
+ mlt_field_plant_transition( field, MLT_TRANSITION( effect ),
+ mlt_properties_get_int( properties, "a_track" ),
+ mlt_properties_get_int( properties, "b_track" ) );
+ mlt_transition_set_in_and_out( MLT_TRANSITION( effect ),
+ mlt_properties_get_int( properties, "in" ),
+ mlt_properties_get_int( properties, "out" ) );
+ }
+ else
+ {
+ fprintf( stderr, "Misplaced transition - ignoring\n" );
+ }
+
+ // Put the parent back on the stack
+ context_push_service( context, parent, parent_type );
+ }
+ else
+ {
+ fprintf( stderr, "transition closed with invalid parent...\n" );
+ }
+
+ // Close the dummy filter service
+ mlt_service_close( service );
+ }
+ else
+ {
+ fprintf( stderr, "Invalid top of stack on transition close\n" );
+ }
}
-static void on_end_entry( deserialise_context context, const xmlChar *name )
+static void on_start_property( deserialise_context context, const xmlChar *name, const xmlChar **atts)
{
- // Get the producer from the stack
- mlt_service producer = context_pop_service( context );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+ char *value = NULL;
- // Get the playlist from the stack
- mlt_service service = context_pop_service( context );
+ if ( service != NULL )
+ {
+ // Set the properties
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ {
+ if ( strcmp( atts[ 0 ], "name" ) == 0 )
+ context->property = strdup( atts[ 1 ] );
+ else if ( strcmp( atts[ 0 ], "value" ) == 0 )
+ value = (char*) atts[ 1 ];
+ }
- // Append the producer to the playlist
- mlt_playlist_append_io( MLT_PLAYLIST( service ),
- MLT_PRODUCER( producer ),
- mlt_properties_get_position( mlt_service_properties( producer ), "in" ),
- mlt_properties_get_position( mlt_service_properties( producer ), "out" ) );
+ if ( context->property != NULL )
+ mlt_properties_set( properties, context->property, value == NULL ? "" : value );
+
+ // Tell parser to collect any further nodes for serialisation
+ context->is_value = 1;
- // Push the playlist back onto the stack
- context_push_service( context, service );
+ context_push_service( context, service, type );
+ }
+ else
+ {
+ fprintf( stderr, "Property without a service '%s'?\n", ( char * )name );
+ }
}
-static void on_end_tractor( deserialise_context context, const xmlChar *name )
+static void on_end_property( deserialise_context context, const xmlChar *name )
{
- // Get and discard the last producer
- mlt_producer multitrack = MLT_PRODUCER( context_pop_service( context ) );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+
+ if ( service != NULL )
+ {
+ // Tell parser to stop building a tree
+ context->is_value = 0;
+
+ // See if there is a xml tree for the value
+ if ( context->property != NULL && context->value_doc != NULL )
+ {
+ xmlChar *value;
+ int size;
+
+ // Serialise the tree to get value
+ xmlDocDumpMemory( context->value_doc, &value, &size );
+ mlt_properties_set( properties, context->property, value );
+ xmlFree( value );
+ xmlFreeDoc( context->value_doc );
+ context->value_doc = NULL;
+ }
+
+ // Close this property handling
+ free( context->property );
+ context->property = NULL;
- // Inherit the producer's properties
- mlt_properties properties = mlt_producer_properties( multitrack );
- mlt_properties_set_position( properties, "length", mlt_producer_get_out( multitrack ) + 1 );
- mlt_producer_set_in_and_out( multitrack, 0, mlt_producer_get_out( multitrack ) );
- mlt_properties_set_double( properties, "fps", mlt_producer_get_fps( multitrack ) );
+ context_push_service( context, service, type );
+ }
+ else
+ {
+ fprintf( stderr, "Property without a service '%s'??\n", (char *)name );
+ }
}
static void on_start_element( void *ctx, const xmlChar *name, const xmlChar **atts)
{
- deserialise_context context = ( deserialise_context ) ctx;
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
+
+//printf("on_start_element: %s\n", name );
+ context->branch[ context->depth ] ++;
+ context->depth ++;
- if ( strcmp( name, "tractor" ) == 0 )
+ // Build a tree from nodes within a property value
+ if ( context->is_value == 1 )
+ {
+ xmlNodePtr node = xmlNewNode( NULL, name );
+
+ if ( context->value_doc == NULL )
+ {
+ // Start a new tree
+ context->value_doc = xmlNewDoc( "1.0" );
+ xmlDocSetRootElement( context->value_doc, node );
+ }
+ else
+ {
+ // Append child to tree
+ xmlAddChild( context->stack_node[ context->stack_node_size - 1 ], node );
+ }
+ context_push_node( context, node );
+
+ // Set the attributes
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ xmlSetProp( node, atts[ 0 ], atts[ 1 ] );
+ }
+ else if ( strcmp( name, "tractor" ) == 0 )
on_start_tractor( context, name, atts );
else if ( strcmp( name, "multitrack" ) == 0 )
on_start_multitrack( context, name, atts );
- else if ( strcmp( name, "playlist" ) == 0 )
+ else if ( strcmp( name, "playlist" ) == 0 || strcmp( name, "seq" ) == 0 || strcmp( name, "smil" ) == 0 )
on_start_playlist( context, name, atts );
- else if ( strcmp( name, "producer" ) == 0 )
+ else if ( strcmp( name, "producer" ) == 0 || strcmp( name, "video" ) == 0 )
on_start_producer( context, name, atts );
else if ( strcmp( name, "blank" ) == 0 )
on_start_blank( context, name, atts );
- else if ( strcmp( name, "entry" ) == 0 || strcmp( name, "track" ) == 0 )
- on_start_entry_track( context, name, atts );
+ else if ( strcmp( name, "entry" ) == 0 )
+ on_start_entry( context, name, atts );
+ else if ( strcmp( name, "track" ) == 0 )
+ on_start_track( context, name, atts );
else if ( strcmp( name, "filter" ) == 0 )
on_start_filter( context, name, atts );
else if ( strcmp( name, "transition" ) == 0 )
on_start_transition( context, name, atts );
+ else if ( strcmp( name, "property" ) == 0 )
+ on_start_property( context, name, atts );
+ else if ( strcmp( name, "westley" ) == 0 )
+ for ( ; atts != NULL && *atts != NULL; atts += 2 )
+ mlt_properties_set( context->producer_map, ( char * )atts[ 0 ], ( char * )atts[ 1 ] );
}
static void on_end_element( void *ctx, const xmlChar *name )
{
- deserialise_context context = ( deserialise_context ) ctx;
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
- if ( strcmp( name, "multitrack" ) == 0 )
+//printf("on_end_element: %s\n", name );
+ if ( context->is_value == 1 && strcmp( name, "property" ) != 0 )
+ context_pop_node( context );
+ else if ( strcmp( name, "multitrack" ) == 0 )
on_end_multitrack( context, name );
- else if ( strcmp( name, "playlist" ) == 0 )
+ else if ( strcmp( name, "playlist" ) == 0 || strcmp( name, "seq" ) == 0 || strcmp( name, "smil" ) == 0 )
on_end_playlist( context, name );
else if ( strcmp( name, "track" ) == 0 )
on_end_track( context, name );
on_end_entry( context, name );
else if ( strcmp( name, "tractor" ) == 0 )
on_end_tractor( context, name );
+ else if ( strcmp( name, "property" ) == 0 )
+ on_end_property( context, name );
+ else if ( strcmp( name, "producer" ) == 0 || strcmp( name, "video" ) == 0 )
+ on_end_producer( context, name );
+ else if ( strcmp( name, "filter" ) == 0 )
+ on_end_filter( context, name );
+ else if ( strcmp( name, "transition" ) == 0 )
+ on_end_transition( context, name );
+
+ context->branch[ context->depth ] = 0;
+ context->depth --;
}
+static void on_characters( void *ctx, const xmlChar *ch, int len )
+{
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
+ char *value = calloc( len + 1, 1 );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
+
+ if ( service != NULL )
+ context_push_service( context, service, type );
-mlt_producer producer_westley_init( char *filename )
+ value[ len ] = 0;
+ strncpy( value, (const char*) ch, len );
+
+ if ( context->stack_node_size > 0 )
+ xmlNodeAddContent( context->stack_node[ context->stack_node_size - 1 ], ( xmlChar* )value );
+
+ // libxml2 generates an on_characters immediately after a get_entity within
+ // an element value, and we ignore it because it is called again during
+ // actual substitution.
+ else if ( context->property != NULL && context->entity_is_replace == 0 )
+ {
+ char *s = mlt_properties_get( properties, context->property );
+ if ( s != NULL )
+ {
+ // Append new text to existing content
+ char *new = calloc( strlen( s ) + len + 1, 1 );
+ strcat( new, s );
+ strcat( new, value );
+ mlt_properties_set( properties, context->property, new );
+ free( new );
+ }
+ else
+ mlt_properties_set( properties, context->property, value );
+ }
+ context->entity_is_replace = 0;
+
+ free( value);
+}
+
+/** Convert parameters parsed from resource into entity declarations.
+*/
+static void params_to_entities( deserialise_context context )
+{
+ if ( context->params != NULL )
+ {
+ int i;
+
+ // Add our params as entitiy declarations
+ for ( i = 0; i < mlt_properties_count( context->params ); i++ )
+ {
+ xmlChar *name = ( xmlChar* )mlt_properties_get_name( context->params, i );
+ xmlAddDocEntity( context->entity_doc, name, XML_INTERNAL_GENERAL_ENTITY,
+ context->publicId, context->systemId, ( xmlChar* )mlt_properties_get( context->params, name ) );
+ }
+
+ // Flag completion
+ mlt_properties_close( context->params );
+ context->params = NULL;
+ }
+}
+
+// The following 3 facilitate entity substitution in the SAX parser
+static void on_internal_subset( void *ctx, const xmlChar* name,
+ const xmlChar* publicId, const xmlChar* systemId )
{
- static int init = 0;
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
+
+ context->publicId = publicId;
+ context->systemId = systemId;
+ xmlCreateIntSubset( context->entity_doc, name, publicId, systemId );
+
+ // Override default entities with our parameters
+ params_to_entities( context );
+}
+
+static void on_entity_declaration( void *ctx, const xmlChar* name, int type,
+ const xmlChar* publicId, const xmlChar* systemId, xmlChar* content)
+{
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
+
+ xmlAddDocEntity( context->entity_doc, name, type, publicId, systemId, content );
+}
+
+xmlEntityPtr on_get_entity( void *ctx, const xmlChar* name )
+{
+ struct _xmlParserCtxt *xmlcontext = ( struct _xmlParserCtxt* )ctx;
+ deserialise_context context = ( deserialise_context )( xmlcontext->_private );
+ xmlEntityPtr e = NULL;
+
+ // Setup for entity declarations if not ready
+ if ( xmlGetIntSubset( context->entity_doc ) == NULL )
+ {
+ xmlCreateIntSubset( context->entity_doc, "westley", "", "" );
+ context->publicId = "";
+ context->systemId = "";
+ }
+
+ // Add our parameters if not already
+ params_to_entities( context );
+
+ e = xmlGetDocEntity( context->entity_doc, name );
+
+ // Send signal to on_characters that an entity substitutin is pending
+ if ( e != NULL )
+ context->entity_is_replace = 1;
+
+ return e;
+}
+
+/** Convert a hexadecimal character to its value.
+*/
+static int tohex( char p )
+{
+ return isdigit( p ) ? p - '0' : tolower( p ) - 'a' + 10;
+}
+
+/** Decode a url-encoded string containing hexadecimal character sequences.
+*/
+static char *url_decode( char *dest, char *src )
+{
+ char *p = dest;
+
+ while ( *src )
+ {
+ if ( *src == '%' )
+ {
+ *p ++ = ( tohex( *( src + 1 ) ) << 4 ) | tohex( *( src + 2 ) );
+ src += 3;
+ }
+ else
+ {
+ *p ++ = *src ++;
+ }
+ }
+
+ *p = *src;
+ return dest;
+}
+
+/** Extract the filename from a URL attaching parameters to a properties list.
+*/
+static void parse_url( mlt_properties properties, char *url )
+{
+ int i;
+ int n = strlen( url );
+ char *name = NULL;
+ char *value = NULL;
+
+ for ( i = 0; i < n; i++ )
+ {
+ switch ( url[ i ] )
+ {
+ case '?':
+ url[ i++ ] = '\0';
+ name = &url[ i ];
+ break;
+
+ case ':':
+ case '=':
+ url[ i++ ] = '\0';
+ value = &url[ i ];
+ break;
+
+ case '&':
+ url[ i++ ] = '\0';
+ if ( name != NULL && value != NULL )
+ mlt_properties_set( properties, name, value );
+ name = &url[ i ];
+ value = NULL;
+ break;
+ }
+ }
+ if ( name != NULL && value != NULL )
+ mlt_properties_set( properties, name, value );
+}
+
+mlt_producer producer_westley_init( int info, char *data )
+{
+ if ( data == NULL )
+ return NULL;
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;
+ struct _xmlParserCtxt *xmlcontext;
+ int well_formed = 0;
+ char *filename = NULL;
context->producer_map = mlt_properties_new();
context->destructors = mlt_properties_new();
+ context->params = mlt_properties_new();
+
+ // Decode URL and parse parameters
+ mlt_properties_set( context->producer_map, "root", "" );
+ if ( info == 0 )
+ {
+ filename = strdup( data );
+ parse_url( context->params, url_decode( filename, data ) );
+
+ // We need the directory prefix which was used for the westley
+ if ( strchr( filename, '/' ) )
+ {
+ char *root = NULL;
+ mlt_properties_set( context->producer_map, "root", filename );
+ root = mlt_properties_get( context->producer_map, "root" );
+ *( strrchr( root, '/' ) ) = '\0';
+
+ // If we don't have an absolute path here, we're heading for disaster...
+ if ( root[ 0 ] != '/' )
+ {
+ char *cwd = getcwd( NULL, 0 );
+ char *real = malloc( strlen( cwd ) + strlen( root ) + 2 );
+ sprintf( real, "%s/%s", cwd, root );
+ mlt_properties_set( context->producer_map, "root", real );
+ free( real );
+ free( cwd );
+ }
+ }
+ }
+
// We need to track the number of registered filters
mlt_properties_set_int( context->destructors, "registered", 0 );
+
+ // Setup SAX callbacks
sax->startElement = on_start_element;
sax->endElement = on_end_element;
+ sax->characters = on_characters;
+ sax->cdataBlock = on_characters;
+ sax->internalSubset = on_internal_subset;
+ sax->entityDecl = on_entity_declaration;
+ sax->getEntity = on_get_entity;
+
+ // Setup libxml2 SAX parsing
+ xmlInitParser();
+ xmlSubstituteEntitiesDefault( 1 );
+ // This is used to facilitate entity substitution in the SAX parser
+ context->entity_doc = xmlNewDoc( "1.0" );
+ if ( info == 0 )
+ xmlcontext = xmlCreateFileParserCtxt( filename );
+ else
+ xmlcontext = xmlCreateMemoryParserCtxt( data, strlen( data ) );
- if ( !init )
+ // Invalid context - clean up and return NULL
+ if ( xmlcontext == NULL )
{
- xmlInitParser();
- init = 1;
+ mlt_properties_close( context->producer_map );
+ mlt_properties_close( context->destructors );
+ mlt_properties_close( context->params );
+ free( context );
+ free( sax );
+ free( filename );
+ return NULL;
}
- xmlSAXUserParseFile( sax, context, filename );
+ xmlcontext->sax = sax;
+ xmlcontext->_private = ( void* )context;
+
+ // Parse
+ xmlParseDocument( xmlcontext );
+ well_formed = xmlcontext->wellFormed;
+
+ // Cleanup after parsing
+ xmlFreeDoc( context->entity_doc );
free( sax );
-
- // Need the complete producer list for various reasons
- properties = context->destructors;
+ xmlcontext->sax = NULL;
+ xmlcontext->_private = NULL;
+ xmlFreeParserCtxt( xmlcontext );
+ xmlMemoryDump( ); // for debugging
// Get the last producer on the stack
- mlt_service service = context_pop_service( context );
+ enum service_type type;
+ mlt_service service = context_pop_service( context, &type );
+ if ( well_formed && service != NULL )
+ {
+ // Verify it is a producer service (mlt_type="mlt_producer")
+ // (producer, playlist, multitrack)
+ char *type = mlt_properties_get( MLT_SERVICE_PROPERTIES( service ), "mlt_type" );
+ if ( type == NULL || ( strcmp( type, "mlt_producer" ) != 0 && strcmp( type, "producer" ) != 0 ) )
+ service = NULL;
+ }
- // Do we actually have a producer here?
- if ( service != NULL )
+#ifdef DEBUG
+ xmlDocPtr doc = westley_make_doc( service );
+ xmlDocFormatDump( stdout, doc, 1 );
+ xmlFreeDoc( doc );
+ service = NULL;
+#endif
+
+ if ( well_formed && service != NULL )
{
+ char *title = mlt_properties_get( context->producer_map, "title" );
+
+ // Need the complete producer list for various reasons
+ properties = context->destructors;
+
// 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 -- )
{
// We are done referencing destructor property list
// Set this var to service properties for convenience
- properties = mlt_service_properties( service );
+ 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 );
+ // Assign the title
+ mlt_properties_set( properties, "title", title );
- // Now assign additional properties
- mlt_properties_set( properties, "resource", filename );
+ // Optimise for overlapping producers
+ mlt_producer_optimise( MLT_PRODUCER( service ) );
- // This tells consumer_westley not to deep copy
- mlt_properties_set( properties, "westley", "was here" );
+ // Handle deep copies
+ if ( getenv( "MLT_WESTLEY_DEEP" ) == NULL )
+ {
+ // Now assign additional properties
+ if ( info == 0 )
+ mlt_properties_set( properties, "resource", data );
+
+ // This tells consumer_westley not to deep copy
+ mlt_properties_set( properties, "westley", "was here" );
+ }
+ else
+ {
+ // Allow the project to be edited
+ mlt_properties_set( properties, "_westley", "was here" );
+ mlt_properties_set_int( properties, "_mlt_service_hidden", 1 );
+ }
}
else
{
- // Clean up
- mlt_properties_close( properties );
+ // Return null if not well formed
+ service = NULL;
}
- free( context->stack_service );
+ // Clean up
mlt_properties_close( context->producer_map );
+ if ( context->params != NULL )
+ mlt_properties_close( context->params );
+ mlt_properties_close( context->destructors );
free( context );
+ free( filename );
return MLT_PRODUCER( service );
}
-
projects / mlt / blobdiff