1182f0e0ff
git-svn-id: http://php-reader.googlecode.com/svn/trunk@39 51a70ab9-7547-0410-9469-37e369ee0574
111 lines
4.1 KiB
PHP
111 lines
4.1 KiB
PHP
<?php
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/**
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* PHP Reader Library
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*
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* Copyright (c) 2008 The PHP Reader Project Workgroup. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* - Neither the name of the project workgroup nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @package php-reader
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* @subpackage ID3
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* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
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* @license http://code.google.com/p/php-reader/wiki/License New BSD License
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* @version $Id$
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*/
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/**#@+ @ignore */
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require_once("ID3/Frame.php");
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/**#@-*/
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/**
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* The <i>Group identification registration</i> frame enables grouping of
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* otherwise unrelated frames. This can be used when some frames are to be
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* signed. To identify which frames belongs to a set of frames a group
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* identifier must be registered in the tag with this frame.
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*
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* The owner identifier is a URL containing an email address, or a link to a
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* location where an email address can be found, that belongs to the
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* organisation responsible for this grouping. Questions regarding the grouping
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* should be sent to the indicated email address.
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*
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* The group symbol contains a value that associates the frame with this group
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* throughout the whole tag, in the range $80-F0. All other values are reserved.
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* The group symbol may optionally be followed by some group specific data, e.g.
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* a digital signature. There may be several "GRID" frames in a tag but only one
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* containing the same symbol and only one containing the same owner identifier.
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* The group symbol must be used somewhere in the tag. See
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* {@link ID3_Frame#GROUPING_IDENTITY} for more information.
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*
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* @package php-reader
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* @subpackage ID3
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* @author Sven Vollbehr <svollbehr@gmail.com>
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* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
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* @license http://code.google.com/p/php-reader/wiki/License New BSD License
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* @version $Rev$
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*/
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final class ID3_Frame_GRID extends ID3_Frame
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{
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/** @var string */
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private $_id;
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/** @var integer */
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private $_group;
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/**
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* Constructs the class with given parameters and parses object related data.
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*
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* @param Reader $reader The reader object.
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*/
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public function __construct($reader)
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{
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parent::__construct($reader);
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list($this->_id, $this->_data) = preg_split("/\\x00/", $this->_data, 2);
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$this->_group = substr($this->_data, 0, 1);
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$this->_data = substr($this->_data, 1);
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}
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/**
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* Returns the owner identifier string.
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*
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* @return string
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*/
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public function getIdentifier() { return $this->_id; }
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/**
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* Returns the group symbol.
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*
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* @return integer
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*/
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public function getGroup() { return $this->_group; }
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/**
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* Returns the group dependent data.
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*
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* @return string
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*/
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public function getData() { return $this->_data; }
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}
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