1 files changed, 140 insertions, 0 deletions
diff --git a/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/EQUA.php b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/EQUA.php
new file mode 100644
index 0000000..42adab2
--- /dev/null
+++ b/libraries/phpvideotoolkit/adapters/ffmpeg-php/php-reader/src/ID3/Frame/EQUA.php
@@ -0,0 +1,140 @@
+<?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: EQUA.php 105 2008-07-30 14:56:47Z svollbehr $
+ * @deprecated ID3v2.3.0
+ */
+
+/**#@+ @ignore */
+require_once("ID3/Frame.php");
+/**#@-*/
+
+/**
+ * The <i>Equalisation</i> frame is another subjective, alignment frame. It
+ * allows the user to predefine an equalisation curve within the audio file.
+ * There may only be one EQUA frame in each tag.
+ *
+ * @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 $
+ * @deprecated ID3v2.3.0
+ */
+final class ID3_Frame_EQUA extends ID3_Frame
+{
+  /** @var Array */
+  private $_adjustments;
+  
+  /**
+   * 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, &$options = array())
+  {
+    parent::__construct($reader, $options);
+    
+    if ($reader === null)
+      return;
+    
+    $adjustmentBits = Transform::fromInt8($this->_data[0]);
+    if ($adjustmentBits <= 8 || $adjustmentBits > 16)
+      throw new ID3_Exception
+          ("Unsupported adjustment bit size of: " . $adjustmentBits);
+    
+    for ($i = 1; $i < strlen($this->_data); $i += 4) {
+      $frequency = Transform::fromUInt16BE(substr($this->_data, $i, 2));
+      $this->_adjustments[($frequency & 0x7fff)] = 
+          ($frequency & 0x8000) == 0x8000 ?
+          Transform::fromUInt16BE(substr($this->_data, $i + 2, 2)) :
+          -Transform::fromUInt16BE(substr($this->_data, $i + 2, 2));
+    }
+    ksort($this->_adjustments);
+  }
+  
+  /**
+   * Returns the array containing adjustments having frequencies as keys and
+   * their corresponding adjustments as values.
+   * 
+   * @return Array
+   */
+  public function getAdjustments() { return $this->_adjustments; }
+  
+  /**
+   * Adds a volume adjustment setting for given frequency. The frequency can
+   * have a value from 0 to 32767 Hz.
+   * 
+   * @param integer $frequency The frequency, in hertz.
+   * @param integer $adjustment The adjustment, in dB.
+   */
+  public function addAdjustment($frequency, $adjustment)
+  {
+    $this->_adjustments[$frequency] = $adjustment;
+    ksort($this->_adjustments);
+  }
+  
+  /**
+   * Sets the adjustments array. The array must have frequencies as keys and
+   * their corresponding adjustments as values. The frequency can have a value
+   * from 0 to 32767 Hz. One frequency should only be described once in the
+   * frame.
+   * 
+   * @param Array $adjustments The adjustments array.
+   */
+  public function setAdjustments($adjustments)
+  {
+    $this->_adjustments = $adjustments;
+    ksort($this->_adjustments);
+  }
+  
+  /**
+   * Returns the frame raw data.
+   *
+   * @return string
+   */
+  public function __toString()
+  {
+    $data = Transform::toInt8(16);
+    foreach ($this->_adjustments as $frequency => $adjustment)
+      $data .= Transform::toUInt16BE
+        ($adjustment > 0 ? $frequency | 0x8000 : $frequency & ~0x8000) .
+        Transform::toUInt16BE(abs($adjustment));
+    $this->setData($data);
+    return parent::__toString();
+  }
+}