GstStructure Generic structure containing fields of names and values @type: @field_id: @value: @user_data: @Returns: @field_id: @value: @user_data: @Returns: @name: @Returns: @quark: @Returns: @name: @firstfield: @Varargs: @Returns: @name: @firstfield: @varargs: @Returns: @structure: @Returns: @structure: @structure: @Returns: @structure: @name: @Returns: @structure: @name: @structure: @Returns: @structure: @field: @Returns: @structure: @field: @value: @structure: @fieldname: @Returns: @field: @structure: @fieldname: @value: @field: @structure: @fieldname: @Varargs: @field: @structure: @fieldname: @varargs: @field: @structure: @fieldname: @field: @structure: @fieldname: @Varargs: @fieldnamename: @structure: @fieldname: @varargs: @fieldnamename: @structure: @structure: @fieldname: @Returns: @field: @structure: @func: @user_data: @Returns: @structure: @Returns: @structure: @fieldname: @Returns: @field: @structure: @fieldname: @type: @Returns: @field: @structure: @fieldname: @value: @Returns: @field: @structure: @fieldname: @value: @Returns: @field: @structure: @fieldname: @value: @Returns: @field: @structure: @fieldname: @value: @Returns: @fieldnamename: @field: @structure: @fieldname: @Returns: @field: @structure: @func: @user_data: @Returns: @structure: @index: @Returns: @structure: @refcount: @structure: @Returns: @string: @end: @Returns: @structure: @field_name: @target: @Returns: @structure: @field_name: @target: @Returns: