1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
<?php
/**
* PHP Reader Library
*
* Copyright (c) 2008 The PHP Reader Project Workgroup. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the project workgroup nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package php-reader
* @subpackage ID3
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Id: WXXX.php 105 2008-07-30 14:56:47Z svollbehr $
*/
/**#@+ @ignore */
require_once("ID3/Frame/AbstractLink.php");
require_once("ID3/Encoding.php");
/**#@-*/
/**
* This frame is intended for URL links concerning the audio file in a similar
* way to the other "W"-frames. The frame body consists of a description of the
* string, represented as a terminated string, followed by the actual URL. The
* URL is always encoded with ISO-8859-1. There may be more than one "WXXX"
* frame in each tag, but only one with the same description.
*
* @package php-reader
* @subpackage ID3
* @author Sven Vollbehr <svollbehr@gmail.com>
* @author Ryan Butterfield <buttza@gmail.com>
* @copyright Copyright (c) 2008 The PHP Reader Project Workgroup
* @license http://code.google.com/p/php-reader/wiki/License New BSD License
* @version $Rev: 105 $
*/
final class ID3_Frame_WXXX extends ID3_Frame_AbstractLink
implements ID3_Encoding
{
/** @var integer */
private $_encoding = ID3_Encoding::UTF8;
/** @var string */
private $_description;
/**
* Constructs the class with given parameters and parses object related data.
*
* @param Reader $reader The reader object.
* @param Array $options The options array.
*/
public function __construct($reader = null, &$options = array())
{
ID3_Frame::__construct($reader, $options);
if ($reader === null)
return;
$this->_encoding = Transform::fromUInt8($this->_data[0]);
$this->_data = substr($this->_data, 1);
switch ($this->_encoding) {
case self::UTF16:
list($this->_description, $this->_link) =
$this->explodeString16($this->_data, 2);
$this->_description = Transform::fromString16($this->_description);
break;
case self::UTF16BE:
list($this->_description, $this->_link) =
$this->explodeString16($this->_data, 2);
$this->_description = Transform::fromString16BE($this->_description);
break;
default:
list($this->_description, $this->_link) =
$this->explodeString8($this->_data, 2);
break;
}
$this->_link = implode($this->explodeString8($this->_link, 1), "");
}
/**
* Returns the text encoding.
*
* @return integer The encoding.
*/
public function getEncoding() { return $this->_encoding; }
/**
* Sets the text encoding.
*
* @see ID3_Encoding
* @param integer $encoding The text encoding.
*/
public function setEncoding($encoding) { $this->_encoding = $encoding; }
/**
* Returns the link description.
*
* @return string
*/
public function getDescription() { return $this->_description; }
/**
* Sets the content description text using given encoding.
*
* @param string $description The content description text.
* @param integer $encoding The text encoding.
*/
public function setDescription($description, $encoding = false)
{
$this->_description = $description;
if ($encoding !== false)
$this->_encoding = $encoding;
}
/**
* Returns the frame raw data.
*
* @return string
*/
public function __toString()
{
$data = Transform::toUInt8($this->_encoding);
switch ($this->_encoding) {
case self::UTF16:
case self::UTF16LE:
$data .= Transform::toString16
($this->_description, $this->_encoding == self::UTF16 ?
Transform::MACHINE_ENDIAN_ORDER : Transform::LITTLE_ENDIAN_ORDER) .
"\0\0";
break;
case self::UTF16BE:
$data .= Transform::toString16BE($this->_description) . "\0\0";
break;
default:
$data .= $this->_description . "\0";
}
$this->setData($data . $this->_link);
return ID3_Frame::__toString();
}
}
|
