+static int load_sequence_querystring( producer_qimage self, mlt_properties properties, const char *filename )
+{
+ int result = 0;
+
+ // Obtain filenames with pattern and begin value in query string
+ if ( strchr( filename, '%' ) && strchr( filename, '?' ) )
+ {
+ // Split filename into pattern and query string
+ char *s = strdup( filename );
+ char *querystring = strrchr( s, '?' );
+ *querystring++ = '\0';
+ if ( strstr( filename, "begin=" ) )
+ mlt_properties_set( properties, "begin", strstr( querystring, "begin=" ) + 6 );
+ else if ( strstr( filename, "begin:" ) )
+ mlt_properties_set( properties, "begin", strstr( querystring, "begin:" ) + 6 );
+ // Coerce to an int value so serialization does not have any extra query string cruft
+ mlt_properties_set_int( properties, "begin", mlt_properties_get_int( properties, "begin" ) );
+ result = load_sequence_sprintf( self, properties, s );
+ free( s );
+ }
+ return result;
+}
+